From 3b80812a1d4f68e57f35fca763f50bf3e5dfe997 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Fri, 19 Feb 2021 14:57:02 -0500 Subject: [PATCH] remove 'notranslate' 6 (#2518) --- .../api/abstractrange/collapsed/index.html | 2 +- .../api/abstractrange/endcontainer/index.html | 2 +- .../api/abstractrange/endoffset/index.html | 2 +- .../abstractrange/startcontainer/index.html | 2 +- .../api/abstractrange/startoffset/index.html | 2 +- .../prompt/index.html | 2 +- files/en-us/web/api/clipboard/read/index.html | 4 +- .../web/api/clipboard/readtext/index.html | 4 +- .../en-us/web/api/clipboard/write/index.html | 6 +- .../web/api/clipboard/writetext/index.html | 4 +- files/en-us/web/api/console/assert/index.html | 2 +- files/en-us/web/api/console/clear/index.html | 2 +- files/en-us/web/api/console/count/index.html | 2 +- .../web/api/console/countreset/index.html | 2 +- files/en-us/web/api/console/debug/index.html | 2 +- files/en-us/web/api/console/dir/index.html | 2 +- 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.../instantiatestreaming/index.html | 2 +- .../linkerror/linkerror/index.html | 2 +- .../webassembly/memory/grow/index.html | 2 +- .../webassembly/memory/index.html | 8 +- .../webassembly/memory/memory/index.html | 8 +- .../module/customsections/index.html | 2 +- .../webassembly/module/exports/index.html | 2 +- .../webassembly/module/imports/index.html | 2 +- .../webassembly/module/index.html | 4 +- .../webassembly/module/module/index.html | 2 +- .../runtimeerror/runtimeerror/index.html | 2 +- .../webassembly/table/get/index.html | 2 +- .../webassembly/table/grow/index.html | 2 +- .../webassembly/table/length/index.html | 2 +- .../webassembly/table/set/index.html | 2 +- .../webassembly/table/table/index.html | 2 +- .../webassembly/validate/index.html | 2 +- .../reference/iteration_protocols/index.html | 30 ++-- .../reference/lexical_grammar/index.html | 62 +++---- .../reference/operators/addition/index.html | 6 +- .../operators/addition_assignment/index.html | 4 +- .../reference/operators/assignment/index.html | 4 +- .../operators/async_function/index.html | 2 +- .../reference/operators/await/index.html | 14 +- .../operators/bitwise_and/index.html | 8 +- .../bitwise_and_assignment/index.html | 4 +- .../operators/bitwise_not/index.html | 8 +- .../reference/operators/bitwise_or/index.html | 8 +- .../bitwise_or_assignment/index.html | 4 +- .../operators/bitwise_xor/index.html | 8 +- .../bitwise_xor_assignment/index.html | 4 +- .../reference/operators/class/index.html | 2 +- .../operators/comma_operator/index.html | 8 +- .../operators/conditional_operator/index.html | 8 +- .../reference/operators/decrement/index.html | 6 +- .../reference/operators/delete/index.html | 4 +- .../destructuring_assignment/index.html | 54 +++--- .../reference/operators/division/index.html | 6 +- .../operators/division_assignment/index.html | 4 +- .../reference/operators/equality/index.html | 12 +- .../operators/exponentiation/index.html | 12 +- .../exponentiation_assignment/index.html | 4 +- .../reference/operators/function/index.html | 2 +- .../operators/function_star_/index.html | 2 +- .../operators/greater_than/index.html | 12 +- .../greater_than_or_equal/index.html | 12 +- .../reference/operators/grouping/index.html | 4 +- .../reference/operators/in/index.html | 18 +- .../reference/operators/increment/index.html | 6 +- .../reference/operators/inequality/index.html | 14 +- .../reference/operators/instanceof/index.html | 12 +- .../reference/operators/left_shift/index.html | 6 +- .../left_shift_assignment/index.html | 4 +- .../reference/operators/less_than/index.html | 12 +- .../operators/less_than_or_equal/index.html | 12 +- .../operators/logical_and/index.html | 20 +-- .../logical_and_assignment/index.html | 8 +- .../operators/logical_not/index.html | 10 +- .../logical_nullish_assignment/index.html | 8 +- .../reference/operators/logical_or/index.html | 20 +-- .../logical_or_assignment/index.html | 10 +- .../operators/multiplication/index.html | 8 +- .../multiplication_assignment/index.html | 4 +- .../reference/operators/new.target/index.html | 2 +- .../reference/operators/new/index.html | 24 +-- .../nullish_coalescing_operator/index.html | 18 +- .../operators/object_initializer/index.html | 34 ++-- .../operators/operator_precedence/index.html | 30 ++-- .../operators/optional_chaining/index.html | 28 +-- .../operators/pipeline_operator/index.html | 8 +- .../operators/property_accessors/index.html | 2 +- .../reference/operators/remainder/index.html | 10 +- .../operators/remainder_assignment/index.html | 4 +- .../operators/right_shift/index.html | 8 +- .../right_shift_assignment/index.html | 4 +- .../operators/spread_syntax/index.html | 40 ++--- .../operators/strict_equality/index.html | 8 +- .../operators/strict_inequality/index.html | 12 +- .../operators/subtraction/index.html | 6 +- .../subtraction_assignment/index.html | 4 +- .../reference/operators/super/index.html | 12 +- .../reference/operators/this/index.html | 2 +- .../reference/operators/typeof/index.html | 22 +-- .../operators/unary_negation/index.html | 6 +- .../reference/operators/unary_plus/index.html | 6 +- .../operators/unsigned_right_shift/index.html | 8 +- .../index.html | 4 +- .../reference/operators/void/index.html | 10 +- .../reference/operators/yield/index.html | 8 +- .../operators/yield_star_/index.html | 2 +- .../statements/async_function/index.html | 22 +-- .../reference/statements/block/index.html | 4 +- .../reference/statements/break/index.html | 14 +- .../reference/statements/class/index.html | 2 +- .../reference/statements/const/index.html | 12 +- .../reference/statements/continue/index.html | 8 +- .../reference/statements/debugger/index.html | 4 +- .../statements/do...while/index.html | 2 +- .../reference/statements/empty/index.html | 8 +- .../reference/statements/export/index.html | 40 ++--- .../statements/for-await...of/index.html | 14 +- .../reference/statements/for...in/index.html | 8 +- .../reference/statements/for...of/index.html | 2 +- .../reference/statements/for/index.html | 12 +- .../reference/statements/function/index.html | 12 +- .../statements/function_star_/index.html | 22 +-- .../reference/statements/if...else/index.html | 2 +- .../statements/import.meta/index.html | 2 +- .../reference/statements/import/index.html | 36 ++-- .../reference/statements/label/index.html | 18 +- .../reference/statements/let/index.html | 32 ++-- .../reference/statements/return/index.html | 16 +- .../reference/statements/switch/index.html | 16 +- .../reference/statements/throw/index.html | 6 +- .../statements/try...catch/index.html | 20 +-- .../reference/statements/var/index.html | 32 ++-- .../reference/statements/while/index.html | 2 +- .../reference/statements/with/index.html | 8 +- .../reference/template_literals/index.html | 32 ++-- .../advanced_example/index.html | 2 +- .../basic_example/index.html | 6 +- 1000 files changed, 3288 insertions(+), 3288 deletions(-) diff --git a/files/en-us/web/api/abstractrange/collapsed/index.html b/files/en-us/web/api/abstractrange/collapsed/index.html index 22298dfbb3a8d2c..d43f92d26c57e10 100644 --- a/files/en-us/web/api/abstractrange/collapsed/index.html +++ b/files/en-us/web/api/abstractrange/collapsed/index.html @@ -18,7 +18,7 @@

Syntax

-
var isCollapsed = range.collapsed
+
var isCollapsed = range.collapsed

Value

diff --git a/files/en-us/web/api/abstractrange/endcontainer/index.html b/files/en-us/web/api/abstractrange/endcontainer/index.html index 943315fdfd0ff04..492e98c5798e317 100644 --- a/files/en-us/web/api/abstractrange/endcontainer/index.html +++ b/files/en-us/web/api/abstractrange/endcontainer/index.html @@ -22,7 +22,7 @@

Syntax

-
var endNode = range.endContainer
+
var endNode = range.endContainer
 

 
 
Value

diff --git a/files/en-us/web/api/abstractrange/endoffset/index.html b/files/en-us/web/api/abstractrange/endoffset/index.html
index dbf057c903300c3..a27a6c49376b9ad 100644
--- a/files/en-us/web/api/abstractrange/endoffset/index.html
+++ b/files/en-us/web/api/abstractrange/endoffset/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
var endOffset = range.endOffset;

+
var endOffset = range.endOffset;

 
 
Value

 
diff --git a/files/en-us/web/api/abstractrange/startcontainer/index.html b/files/en-us/web/api/abstractrange/startcontainer/index.html
index e4e8640306e888b..35bb0a4e68245ef 100644
--- a/files/en-us/web/api/abstractrange/startcontainer/index.html
+++ b/files/en-us/web/api/abstractrange/startcontainer/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
var startNode = range.startContainer
+
var startNode = range.startContainer
 

 
 
Value

diff --git a/files/en-us/web/api/abstractrange/startoffset/index.html b/files/en-us/web/api/abstractrange/startoffset/index.html
index ec2d68f25c157df..fb3560b106df3fa 100644
--- a/files/en-us/web/api/abstractrange/startoffset/index.html
+++ b/files/en-us/web/api/abstractrange/startoffset/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
var startOffset = range.startOffset
+
var startOffset = range.startOffset
 

 
 
Value

diff --git a/files/en-us/web/api/beforeinstallpromptevent/prompt/index.html b/files/en-us/web/api/beforeinstallpromptevent/prompt/index.html
index bdafc04b5ca2655..38fb8717433181e 100644
--- a/files/en-us/web/api/beforeinstallpromptevent/prompt/index.html
+++ b/files/en-us/web/api/beforeinstallpromptevent/prompt/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
BeforeInstallPromptEvent.prompt()

+
BeforeInstallPromptEvent.prompt()

 
 
Parameters

 
diff --git a/files/en-us/web/api/clipboard/read/index.html b/files/en-us/web/api/clipboard/read/index.html
index ef78e4afd7857d8..bcbfd33adc59abf 100644
--- a/files/en-us/web/api/clipboard/read/index.html
+++ b/files/en-us/web/api/clipboard/read/index.html
@@ -39,7 +39,7 @@
 
Syntax

 
 
var promise = navigator.clipboard.read();

+  class="brush: js">var promise = navigator.clipboard.read();

 
 
Parameters

 
@@ -59,7 +59,7 @@ 
Example

   image, an error message is presented. Otherwise, an image element referred to using the
   variable imgElem has its source replaced with the clipboard's contents.

 
-
// First, ask the Permissions API if we have some kind of access to
+
// First, ask the Permissions API if we have some kind of access to
 // the "clipboard-read" feature.
 
 navigator.permissions.query({name: "clipboard-read"}).then(result => {
diff --git a/files/en-us/web/api/clipboard/readtext/index.html b/files/en-us/web/api/clipboard/readtext/index.html
index 9b385a6c6041556..07c19f2c8ba1d2b 100644
--- a/files/en-us/web/api/clipboard/readtext/index.html
+++ b/files/en-us/web/api/clipboard/readtext/index.html
@@ -29,7 +29,7 @@
 
Syntax

 
 
var promise = navigator.clipboard.readText()

+  class="brush: js">var promise = navigator.clipboard.readText()

 
 
Parameters

 
@@ -51,7 +51,7 @@ 
Example

 
This example retrieves the textual contents of the clipboard and inserts the returned
   text into an element's contents.

 
-
navigator.clipboard.readText().then(
+
navigator.clipboard.readText().then(
   clipText => document.getElementById("outbox").innerText = clipText);

 
 
Specifications

diff --git a/files/en-us/web/api/clipboard/write/index.html b/files/en-us/web/api/clipboard/write/index.html
index cfa0b52e0aafedd..c74fcb5775a61e3 100644
--- a/files/en-us/web/api/clipboard/write/index.html
+++ b/files/en-us/web/api/clipboard/write/index.html
@@ -36,7 +36,7 @@
 
Syntax

 
 
var promise = navigator.clipboard.write(data)

+  class="brush: js">var promise = navigator.clipboard.write(data)

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Example

 
This example function replaces the current contents of the clipboard with a specified
   string.

 
-
function setClipboard(text) {
+
function setClipboard(text) {
   let data = [new ClipboardItem({ "text/plain": text })];
 
   navigator.clipboard.write(data).then(function() {
@@ -78,7 +78,7 @@ 
Example

 
Example of copying canvas
   contents to the clipboard

 
-
function copyCanvasContentsToClipboard(canvas, onDone, onError) {
+
function copyCanvasContentsToClipboard(canvas, onDone, onError) {
   canvas.toBlob(function (blob) {
     let data = [new ClipboardItem({ [blob.type]: blob })];
 
diff --git a/files/en-us/web/api/clipboard/writetext/index.html b/files/en-us/web/api/clipboard/writetext/index.html
index 50059294f27b97c..033a770857f71c8 100644
--- a/files/en-us/web/api/clipboard/writetext/index.html
+++ b/files/en-us/web/api/clipboard/writetext/index.html
@@ -37,7 +37,7 @@
 
Syntax

 
 
var promise = navigator.clipboard.writeText(newClipText)

+  class="brush: js">var promise = navigator.clipboard.writeText(newClipText)

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Example

 
 
This example sets the clipboard's contents to the string "<empty clipboard>".

 
-
navigator.clipboard.writeText("<empty clipboard>").then(function() {
+
navigator.clipboard.writeText("<empty clipboard>").then(function() {
   /* clipboard successfully set */
 }, function() {
   /* clipboard write failed */
diff --git a/files/en-us/web/api/console/assert/index.html b/files/en-us/web/api/console/assert/index.html
index bd9d450e1c8b1a2..78206a3dbed34bc 100644
--- a/files/en-us/web/api/console/assert/index.html
+++ b/files/en-us/web/api/console/assert/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
console.assert(assertion, obj1 [, obj2, ..., objN]);
+
console.assert(assertion, obj1 [, obj2, ..., objN]);
 console.assert(assertion, msg [, subst1, ..., substN]); // C-like message formatting
 

 
diff --git a/files/en-us/web/api/console/clear/index.html b/files/en-us/web/api/console/clear/index.html
index c9b110e2844b127..39c087ebb02b6c4 100644
--- a/files/en-us/web/api/console/clear/index.html
+++ b/files/en-us/web/api/console/clear/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
console.clear();
+
console.clear();
 

 
 
Specifications

diff --git a/files/en-us/web/api/console/count/index.html b/files/en-us/web/api/console/count/index.html
index c1a5a291beab367..5c2cddb100fc6c1 100644
--- a/files/en-us/web/api/console/count/index.html
+++ b/files/en-us/web/api/console/count/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
console.count([label]);

+
console.count([label]);

 
 
Parameters

 
diff --git a/files/en-us/web/api/console/countreset/index.html b/files/en-us/web/api/console/countreset/index.html
index b3db0b9acdfeb57..bc3a5837cab4ae3 100644
--- a/files/en-us/web/api/console/countreset/index.html
+++ b/files/en-us/web/api/console/countreset/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
console.countReset([label]);
+
console.countReset([label]);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/debug/index.html b/files/en-us/web/api/console/debug/index.html
index 7b7abab95289578..b5d7941a6f38068 100644
--- a/files/en-us/web/api/console/debug/index.html
+++ b/files/en-us/web/api/console/debug/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
console.debug(obj1 [, obj2, ..., objN]);
+
console.debug(obj1 [, obj2, ..., objN]);
 console.debug(msg [, subst1, ..., substN]);
 

 
diff --git a/files/en-us/web/api/console/dir/index.html b/files/en-us/web/api/console/dir/index.html
index d3da64e2d75ce03..58b50f23262630f 100644
--- a/files/en-us/web/api/console/dir/index.html
+++ b/files/en-us/web/api/console/dir/index.html
@@ -29,7 +29,7 @@
 
 
Syntax

 
-
console.dir(object);
+
console.dir(object);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/dirxml/index.html b/files/en-us/web/api/console/dirxml/index.html
index 73bf46f9328f82a..3344892dfb1c2ad 100644
--- a/files/en-us/web/api/console/dirxml/index.html
+++ b/files/en-us/web/api/console/dirxml/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
console.dirxml(object);
+
console.dirxml(object);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/error/index.html b/files/en-us/web/api/console/error/index.html
index 281c342b51f20b8..004f9dcb11d3f55 100644
--- a/files/en-us/web/api/console/error/index.html
+++ b/files/en-us/web/api/console/error/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
console.error(obj1 [, obj2, ..., objN]);
+
console.error(obj1 [, obj2, ..., objN]);
 console.error(msg [, subst1, ..., substN]);
 

 
diff --git a/files/en-us/web/api/console/group/index.html b/files/en-us/web/api/console/group/index.html
index f4bf39c626afde7..3de01dc7b8ccc34 100644
--- a/files/en-us/web/api/console/group/index.html
+++ b/files/en-us/web/api/console/group/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
console.group([label]);
+
console.group([label]);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/groupcollapsed/index.html b/files/en-us/web/api/console/groupcollapsed/index.html
index 9a7932856f09a30..06cf349c0dbe19d 100644
--- a/files/en-us/web/api/console/groupcollapsed/index.html
+++ b/files/en-us/web/api/console/groupcollapsed/index.html
@@ -27,7 +27,7 @@
 
 
Syntax

 
-
console.groupCollapsed([label]);
+
console.groupCollapsed([label]);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/groupend/index.html b/files/en-us/web/api/console/groupend/index.html
index 8538872bee9a7c0..66f0f62054082b2 100644
--- a/files/en-us/web/api/console/groupend/index.html
+++ b/files/en-us/web/api/console/groupend/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
console.groupEnd();
+
console.groupEnd();
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/index.html b/files/en-us/web/api/console/index.html
index 96725e1ca240e66..022449390db3c4c 100644
--- a/files/en-us/web/api/console/index.html
+++ b/files/en-us/web/api/console/index.html
@@ -15,7 +15,7 @@
 
 
The console object can be accessed from any global object. {{domxref("Window")}} on browsing scopes and {{domxref("WorkerGlobalScope")}} as specific variants in workers via the property console. It's exposed as {{domxref("Window.console")}}, and can be referenced as console. For example:

 
-
console.log("Failed to open the specified link")

+
console.log("Failed to open the specified link")

 
 
This page documents the {{anch("Methods")}} available on the console object and gives a few {{anch("Usage")}} examples.

 
@@ -88,25 +88,25 @@ 
Outputting a single object

 
 
The simplest way to use the logging methods is to output a single object:

 
-
var someObject = { str: "Some text", id: 5 };
+
var someObject = { str: "Some text", id: 5 };
 console.log(someObject);
 

 
 
The output looks something like this:

 
-
[09:27:13.475] ({str:"Some text", id:5})

+
[09:27:13.475] ({str:"Some text", id:5})

 
 
Outputting multiple objects

 
 
You can also output multiple objects by listing them when calling the logging method, like this:

 
-
var car = "Dodge Charger";
+
var car = "Dodge Charger";
 var someObject = { str: "Some text", id: 5 };
 console.info("My first car was a", car, ". The object is:", someObject);

 
 
This output will look like this:

 
-
[09:28:22.711] My first car was a Dodge Charger . The object is: ({str:"Some text", id:5})
+
[09:28:22.711] My first car was a Dodge Charger . The object is: ({str:"Some text", id:5})
 

 
 
Using string substitutions

@@ -130,14 +130,14 @@ 
Using string substitutions

 
 
Each of these pulls the next argument after the format string off the parameter list. For example:

 
-
for (var i=0; i<5; i++) {
+
for (var i=0; i<5; i++) {
   console.log("Hello, %s. You've called me %d times.", "Bob", i+1);
 }
 

 
 
The output looks like this:

 
-
[13:14:13.481] Hello, Bob. You've called me 1 times.
+
[13:14:13.481] Hello, Bob. You've called me 1 times.
 [13:14:13.483] Hello, Bob. You've called me 2 times.
 [13:14:13.485] Hello, Bob. You've called me 3 times.
 [13:14:13.487] Hello, Bob. You've called me 4 times.
@@ -148,7 +148,7 @@ 
Styling console output

 
 
You can use the %c directive to apply a CSS style to console output:

 
-
console.log("This is %cMy stylish message", "color: yellow; font-style: italic; background-color: blue;padding: 2px");

+
console.log("This is %cMy stylish message", "color: yellow; font-style: italic; background-color: blue;padding: 2px");

 
 
The text before the directive will not be affected, but the text after the directive will be styled using the CSS declarations in the parameter.

 
@@ -187,7 +187,7 @@ 
Using groups in the console

 
 
To exit the current group, call console.groupEnd(). For example, given this code:

 
-
console.log("This is the outer level");
+
console.log("This is the outer level");
 console.group("First group");
 console.log("In the first group");
 console.group("Second group");
@@ -209,7 +209,7 @@ 
Timers

 
 
For example, given this code:

 
-
console.time("answer time");
+
console.time("answer time");
 alert("Click to continue");
 console.timeLog("answer time");
 alert("Do a bunch of other stuff...");
@@ -228,7 +228,7 @@ 
Stack traces

 
 
The console object also supports outputting a stack trace; this will show you the call path taken to reach the point at which you call {{domxref("console.trace()")}}. Given code like this:

 
-
function foo() {
+
function foo() {
   function bar() {
     console.trace();
   }
diff --git a/files/en-us/web/api/console/info/index.html b/files/en-us/web/api/console/info/index.html
index 7c36d3bbf6026a2..cd173ae262db286 100644
--- a/files/en-us/web/api/console/info/index.html
+++ b/files/en-us/web/api/console/info/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
console.info(obj1 [, obj2, ..., objN]);
+
console.info(obj1 [, obj2, ..., objN]);
 console.info(msg [, subst1, ..., substN]);
 

 
diff --git a/files/en-us/web/api/console/log/index.html b/files/en-us/web/api/console/log/index.html
index a09e8979b7eed55..d3936f23cdbda64 100644
--- a/files/en-us/web/api/console/log/index.html
+++ b/files/en-us/web/api/console/log/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
console.log(obj1 [, obj2, ..., objN]);
+
console.log(obj1 [, obj2, ..., objN]);
 console.log(msg [, subst1, ..., substN]);
 

 
diff --git a/files/en-us/web/api/console/profile/index.html b/files/en-us/web/api/console/profile/index.html
index fd0fd399ce2648d..cde670956fa5460 100644
--- a/files/en-us/web/api/console/profile/index.html
+++ b/files/en-us/web/api/console/profile/index.html
@@ -27,7 +27,7 @@
 
 
Syntax

 
-
console.profile(profileName);
+
console.profile(profileName);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/profileend/index.html b/files/en-us/web/api/console/profileend/index.html
index 2dd14260ce9c2bf..cd2ffa0c21a42a1 100644
--- a/files/en-us/web/api/console/profileend/index.html
+++ b/files/en-us/web/api/console/profileend/index.html
@@ -39,7 +39,7 @@
 
 
Syntax

 
-
console.profileEnd(profileName);
+
console.profileEnd(profileName);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/table/index.html b/files/en-us/web/api/console/table/index.html
index 09a4f8bd02f7470..1dd199353edddd4 100644
--- a/files/en-us/web/api/console/table/index.html
+++ b/files/en-us/web/api/console/table/index.html
@@ -126,7 +126,7 @@ 
Sorting columns

 
 
Syntax

 
-
console.table(data [, columns]);
+
console.table(data [, columns]);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/time/index.html b/files/en-us/web/api/console/time/index.html
index 24f794a9c6c216c..c39907c23f62a3e 100644
--- a/files/en-us/web/api/console/time/index.html
+++ b/files/en-us/web/api/console/time/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
console.time(label);
+
console.time(label);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/timeend/index.html b/files/en-us/web/api/console/timeend/index.html
index 878e4cda11e070c..54ff83211d83d59 100644
--- a/files/en-us/web/api/console/timeend/index.html
+++ b/files/en-us/web/api/console/timeend/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
console.timeEnd(label);
+
console.timeEnd(label);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/timelog/index.html b/files/en-us/web/api/console/timelog/index.html
index 71327c8ac56e476..b4698cca9bf77ec 100644
--- a/files/en-us/web/api/console/timelog/index.html
+++ b/files/en-us/web/api/console/timelog/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
console.timeLog(label);

+
console.timeLog(label);

 
 
Parameters

 
diff --git a/files/en-us/web/api/console/timestamp/index.html b/files/en-us/web/api/console/timestamp/index.html
index d1310be2b1009ff..bad6231c9b2c0a3 100644
--- a/files/en-us/web/api/console/timestamp/index.html
+++ b/files/en-us/web/api/console/timestamp/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
console.timeStamp(label);
+
console.timeStamp(label);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/trace/index.html b/files/en-us/web/api/console/trace/index.html
index 49be0e8ad15078a..bd9abb732608247 100644
--- a/files/en-us/web/api/console/trace/index.html
+++ b/files/en-us/web/api/console/trace/index.html
@@ -28,7 +28,7 @@
 
 
Syntax

 
-
console.trace( [...any, ...data ]);
+
console.trace( [...any, ...data ]);
 

 
 
Parameters

diff --git a/files/en-us/web/api/console/warn/index.html b/files/en-us/web/api/console/warn/index.html
index 7fe9d855165ca1a..e1d5bc08b9428b2 100644
--- a/files/en-us/web/api/console/warn/index.html
+++ b/files/en-us/web/api/console/warn/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
console.warn(obj1 [, obj2, ..., objN]);
+
console.warn(obj1 [, obj2, ..., objN]);
 console.warn(msg [, subst1, ..., substN]);
 

 
diff --git a/files/en-us/web/api/countqueuingstrategy/countqueuingstrategy/index.html b/files/en-us/web/api/countqueuingstrategy/countqueuingstrategy/index.html
index ce2948a0dda5b49..3a9f6aa82c29582 100644
--- a/files/en-us/web/api/countqueuingstrategy/countqueuingstrategy/index.html
+++ b/files/en-us/web/api/countqueuingstrategy/countqueuingstrategy/index.html
@@ -17,7 +17,7 @@
 
Syntax

 
 
var countQueuingStrategy = new CountQueuingStrategy({highWaterMark});

+  class="brush: js">var countQueuingStrategy = new CountQueuingStrategy({highWaterMark});

 
 
Parameters

 
diff --git a/files/en-us/web/api/countqueuingstrategy/size/index.html b/files/en-us/web/api/countqueuingstrategy/size/index.html
index d1d67e1fcd1dc4d..a2f3d8ffc610f1d 100644
--- a/files/en-us/web/api/countqueuingstrategy/size/index.html
+++ b/files/en-us/web/api/countqueuingstrategy/size/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var size = countQueuingStrategy.size();

+  class="brush: js">var size = countQueuingStrategy.size();

 
 
Parameters

 
diff --git a/files/en-us/web/api/cssmathmax/cssmathmax/index.html b/files/en-us/web/api/cssmathmax/cssmathmax/index.html
index 80edd0684a30ee5..60f31b313f89d04 100644
--- a/files/en-us/web/api/cssmathmax/cssmathmax/index.html
+++ b/files/en-us/web/api/cssmathmax/cssmathmax/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var CSSMathMax = new CSSMathMax(args);

+  class="brush: js">var CSSMathMax = new CSSMathMax(args);

 
 
Parameters

 
diff --git a/files/en-us/web/api/cssmathmax/values/index.html b/files/en-us/web/api/cssmathmax/values/index.html
index af831a68005289e..73662055c6c23a7 100644
--- a/files/en-us/web/api/cssmathmax/values/index.html
+++ b/files/en-us/web/api/cssmathmax/values/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var cssNumericArray = CSSMathMax.values;

+  class="brush: js">var cssNumericArray = CSSMathMax.values;

 
 
Value

 
diff --git a/files/en-us/web/api/cssmathvalue/operator/index.html b/files/en-us/web/api/cssmathvalue/operator/index.html
index 21b5cf367583485..47d4d86d8a29ea2 100644
--- a/files/en-us/web/api/cssmathvalue/operator/index.html
+++ b/files/en-us/web/api/cssmathvalue/operator/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
var aString = CSSMathValue.operator;

+
var aString = CSSMathValue.operator;

 
 
Value

 
@@ -73,18 +73,18 @@ 
Examples

   then console.log() the
   operator.

 
-
<div>My width has a <code>calc()</code> function</div>
+
<div>My width has a <code>calc()</code> function</div>
 

 
 
We assign a width with a calculation

 
-
div {
+
div {
   width: calc(50% - 0.5vw);
 }

 
 
We add the JavaScript

 
-
const styleMap = document.querySelector('div').computedStyleMap();
+
const styleMap = document.querySelector('div').computedStyleMap();
 
 console.log( styleMap.get('width') );                   // CSSMathSum {values: CSSNumericArray, operator: "sum"}
 console.log( styleMap.get('width').values );            // CSSNumericArray {0: CSSUnitValue, 1: CSSMathNegate, length: 2}
diff --git a/files/en-us/web/api/cssprimitivevalue/getrgbcolorvalue/index.html b/files/en-us/web/api/cssprimitivevalue/getrgbcolorvalue/index.html
index ed4bfab9fc06611..b3bd327102b9587 100644
--- a/files/en-us/web/api/cssprimitivevalue/getrgbcolorvalue/index.html
+++ b/files/en-us/web/api/cssprimitivevalue/getrgbcolorvalue/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
var rgbColorValue = cssPrimitiveValue.getRGBColorValue();

+  class="brush: js">var rgbColorValue = cssPrimitiveValue.getRGBColorValue();

 
 
Return value

 
diff --git a/files/en-us/web/api/cssprimitivevalue/setfloatvalue/index.html b/files/en-us/web/api/cssprimitivevalue/setfloatvalue/index.html
index 5be0bbd4c09eb23..b8184ce14197716 100644
--- a/files/en-us/web/api/cssprimitivevalue/setfloatvalue/index.html
+++ b/files/en-us/web/api/cssprimitivevalue/setfloatvalue/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
cssPrimitiveValue.setFloatValue(unitType, floatValue);

+  class="brush: js">cssPrimitiveValue.setFloatValue(unitType, floatValue);

 
 
Parameters

 
diff --git a/files/en-us/web/api/cssprimitivevalue/setstringvalue/index.html b/files/en-us/web/api/cssprimitivevalue/setstringvalue/index.html
index 4311257b4a9717d..dc5c2754932a290 100644
--- a/files/en-us/web/api/cssprimitivevalue/setstringvalue/index.html
+++ b/files/en-us/web/api/cssprimitivevalue/setstringvalue/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
cssPrimitiveValue.setStringValue(stringType, stringValue);

+  class="brush: js">cssPrimitiveValue.setStringValue(stringType, stringValue);

 
 
Parameters

 
diff --git a/files/en-us/web/api/csspseudoelement/element/index.html b/files/en-us/web/api/csspseudoelement/element/index.html
index 45fab0aa5b8d278..fbe2c82a73d2ea8 100644
--- a/files/en-us/web/api/csspseudoelement/element/index.html
+++ b/files/en-us/web/api/csspseudoelement/element/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
var originatingElement = cssPseudoElement.element;
+
var originatingElement = cssPseudoElement.element;
 

 
 
Value

diff --git a/files/en-us/web/api/csspseudoelement/type/index.html b/files/en-us/web/api/csspseudoelement/type/index.html
index ad4c039d6cfc45b..a969806e3563f0a 100644
--- a/files/en-us/web/api/csspseudoelement/type/index.html
+++ b/files/en-us/web/api/csspseudoelement/type/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
var typeOfPseudoElement = cssPseudoElement.type;
+
var typeOfPseudoElement = cssPseudoElement.type;
 

 
 
Value

diff --git a/files/en-us/web/api/deviceorientationevent/absolute/index.html b/files/en-us/web/api/deviceorientationevent/absolute/index.html
index cae22d2e80f33bc..7f4405002a85f72 100644
--- a/files/en-us/web/api/deviceorientationevent/absolute/index.html
+++ b/files/en-us/web/api/deviceorientationevent/absolute/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
var absolute = instanceOfDeviceOrientationEvent.absolute;
+
var absolute = instanceOfDeviceOrientationEvent.absolute;
 

 
 
On return, absolute is true if the orientation data
diff --git a/files/en-us/web/api/deviceorientationevent/alpha/index.html b/files/en-us/web/api/deviceorientationevent/alpha/index.html
index c7bb484a4098fad..ec18aa7a1c4d46c 100644
--- a/files/en-us/web/api/deviceorientationevent/alpha/index.html
+++ b/files/en-us/web/api/deviceorientationevent/alpha/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
var alpha = instanceOfDeviceOrientationEvent.alpha;
+
var alpha = instanceOfDeviceOrientationEvent.alpha;
 

 
 
Specifications

diff --git a/files/en-us/web/api/deviceorientationevent/beta/index.html b/files/en-us/web/api/deviceorientationevent/beta/index.html
index c5ca984d633b85f..6937fa20200ff88 100644
--- a/files/en-us/web/api/deviceorientationevent/beta/index.html
+++ b/files/en-us/web/api/deviceorientationevent/beta/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
var beta = instanceOfDeviceOrientationEvent.beta;

+  class="brush: js">var beta = instanceOfDeviceOrientationEvent.beta;

 
 
Specifications

 
diff --git a/files/en-us/web/api/deviceorientationevent/deviceorientationevent/index.html b/files/en-us/web/api/deviceorientationevent/deviceorientationevent/index.html
index 0d0e425951e65c2..baae88ff3e1111d 100644
--- a/files/en-us/web/api/deviceorientationevent/deviceorientationevent/index.html
+++ b/files/en-us/web/api/deviceorientationevent/deviceorientationevent/index.html
@@ -17,7 +17,7 @@
 
Syntax

 
 
var deviceOrientationEvent = new DeviceOrientationEvent(type[, options])

+  class="brush: js">var deviceOrientationEvent = new DeviceOrientationEvent(type[, options])

 
 
Parameters

 
diff --git a/files/en-us/web/api/deviceorientationevent/gamma/index.html b/files/en-us/web/api/deviceorientationevent/gamma/index.html
index 394dabac802df01..83832dbcdc70006 100644
--- a/files/en-us/web/api/deviceorientationevent/gamma/index.html
+++ b/files/en-us/web/api/deviceorientationevent/gamma/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
var gamma = orientationEvent.gamma;
+
var gamma = orientationEvent.gamma;
 

 
 
Specifications

diff --git a/files/en-us/web/api/deviceorientationevent/index.html b/files/en-us/web/api/deviceorientationevent/index.html
index 483eeb0498a336c..483830371797f9c 100644
--- a/files/en-us/web/api/deviceorientationevent/index.html
+++ b/files/en-us/web/api/deviceorientationevent/index.html
@@ -38,7 +38,7 @@ 
Properties

 
 
Example

 
-
window.addEventListener('deviceorientation', function(event) {
+
window.addEventListener('deviceorientation', function(event) {
   console.log(event.alpha + ' : ' + event.beta + ' : ' + event.gamma);
 });

 
diff --git a/files/en-us/web/api/eventlistener/handleevent/index.html b/files/en-us/web/api/eventlistener/handleevent/index.html
index 37d0691bec00bbb..77a23025246dec4 100644
--- a/files/en-us/web/api/eventlistener/handleevent/index.html
+++ b/files/en-us/web/api/eventlistener/handleevent/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
eventListener.handleEvent(event);
+
eventListener.handleEvent(event);
 

 
 
Parameters

diff --git a/files/en-us/web/api/filereader/abort/index.html b/files/en-us/web/api/filereader/abort/index.html
index 44b0c80925925fe..90d0105bf0a6572 100644
--- a/files/en-us/web/api/filereader/abort/index.html
+++ b/files/en-us/web/api/filereader/abort/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
instanceOfFileReader.abort();

+
instanceOfFileReader.abort();

 
 
Exceptions

 
diff --git a/files/en-us/web/api/filereader/error/index.html b/files/en-us/web/api/filereader/error/index.html
index a186a0b5441ad81..e87dd097dda48cd 100644
--- a/files/en-us/web/api/filereader/error/index.html
+++ b/files/en-us/web/api/filereader/error/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
var error = instanceOfFileReader.error
+
var error = instanceOfFileReader.error
 

 
 
Value

diff --git a/files/en-us/web/api/filereader/onabort/index.html b/files/en-us/web/api/filereader/onabort/index.html
index e10bc3aa6c58729..f74108ad12aa236 100644
--- a/files/en-us/web/api/filereader/onabort/index.html
+++ b/files/en-us/web/api/filereader/onabort/index.html
@@ -12,7 +12,7 @@
 
 
Syntax

 
-
reader.onabort = function() { ... };

+
reader.onabort = function() { ... };

 
 
Browser compatibility

 
diff --git a/files/en-us/web/api/filereader/onerror/index.html b/files/en-us/web/api/filereader/onerror/index.html
index 6c033c157a99c4e..5e954be1298234d 100644
--- a/files/en-us/web/api/filereader/onerror/index.html
+++ b/files/en-us/web/api/filereader/onerror/index.html
@@ -4,7 +4,7 @@
 ---
 
The FileReader onerror handler receives an Event object, not an Error object, as a parameter, but an error can be accessed from the FileReader object, as instanceOfFileReader.error

 
-
// Callback from a <input type="file" onchange="onChange(event)">
+
// Callback from a <input type="file" onchange="onChange(event)">
 function onChange(event) {
   var file = event.target.files[0];
   var reader = new FileReader();
diff --git a/files/en-us/web/api/filereader/readasarraybuffer/index.html b/files/en-us/web/api/filereader/readasarraybuffer/index.html
index 4fc2d69d9e25bab..b4c35d2a572711c 100644
--- a/files/en-us/web/api/filereader/readasarraybuffer/index.html
+++ b/files/en-us/web/api/filereader/readasarraybuffer/index.html
@@ -30,7 +30,7 @@
 
Syntax

 
 
instanceOfFileReader.readAsArrayBuffer(blob);

+  class="brush: js">instanceOfFileReader.readAsArrayBuffer(blob);

 
 
Parameters

 
diff --git a/files/en-us/web/api/filereader/readasbinarystring/index.html b/files/en-us/web/api/filereader/readasbinarystring/index.html
index fb9c6fc7cc2fedd..3c6fc676564beba 100644
--- a/files/en-us/web/api/filereader/readasbinarystring/index.html
+++ b/files/en-us/web/api/filereader/readasbinarystring/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
instanceOfFileReader.readAsBinaryString(blob);

+  class="brush: js">instanceOfFileReader.readAsBinaryString(blob);

 
 
Parameters

 
diff --git a/files/en-us/web/api/filereader/readasdataurl/index.html b/files/en-us/web/api/filereader/readasdataurl/index.html
index 14fa6eba5bdaad2..61f22f44fd21a09 100644
--- a/files/en-us/web/api/filereader/readasdataurl/index.html
+++ b/files/en-us/web/api/filereader/readasdataurl/index.html
@@ -28,7 +28,7 @@
 
Syntax

 
 
instanceOfFileReader.readAsDataURL(blob);

+  class="brush: js">instanceOfFileReader.readAsDataURL(blob);

 
 
Parameters

 
diff --git a/files/en-us/web/api/filereader/readastext/index.html b/files/en-us/web/api/filereader/readastext/index.html
index a24a627dc08a2f8..e172ab8a420acab 100644
--- a/files/en-us/web/api/filereader/readastext/index.html
+++ b/files/en-us/web/api/filereader/readastext/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
instanceOfFileReader.readAsText(blob[, encoding]);

+  class="brush: js">instanceOfFileReader.readAsText(blob[, encoding]);

 
 
Parameters

 
diff --git a/files/en-us/web/api/filereader/result/index.html b/files/en-us/web/api/filereader/result/index.html
index 13b5faaa2d5afef..ec89765ce60bd1b 100644
--- a/files/en-us/web/api/filereader/result/index.html
+++ b/files/en-us/web/api/filereader/result/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
var file = instanceOfFileReader.result
+
var file = instanceOfFileReader.result
 

 
 
Value

diff --git a/files/en-us/web/api/filesystemdirectoryhandle/entries/index.html b/files/en-us/web/api/filesystemdirectoryhandle/entries/index.html
index 0e626a27948ef4b..d476821c48bbee5 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/entries/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/entries/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
 FileSystemDirectoryHandle.entries();

+
 FileSystemDirectoryHandle.entries();

 
 
Parameters

 
diff --git a/files/en-us/web/api/filesystemdirectoryhandle/getdirectoryhandle/index.html b/files/en-us/web/api/filesystemdirectoryhandle/getdirectoryhandle/index.html
index 5399423ad2725eb..820f2462dfb9ee7 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/getdirectoryhandle/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/getdirectoryhandle/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
var FileSystemDirectoryHandle = FileSystemDirectoryHandle.getDirectoryHandle();

+  class="brush: js">var FileSystemDirectoryHandle = FileSystemDirectoryHandle.getDirectoryHandle();

 
 
Parameters

 
@@ -61,7 +61,7 @@ 
Examples

 
The following example returns a directory handle with the specified name, if the
   directory does not exist it is created.

 
-
const dirName = 'directoryToGetName';
+
const dirName = 'directoryToGetName';
 
 // assuming we have a directory handle: 'currentDirHandle'
 const subDir = currentDirHandle.getDirectoryHandle(dirName, {create: true});

diff --git a/files/en-us/web/api/filesystemdirectoryhandle/getfilehandle/index.html b/files/en-us/web/api/filesystemdirectoryhandle/getfilehandle/index.html
index 07e6be1332d07ed..acd86122dcafdb7 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/getfilehandle/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/getfilehandle/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var FileSystemFileHandle = FileSystemDirectoryHandle.getFileHandle(name);

+  class="brush: js">var FileSystemFileHandle = FileSystemDirectoryHandle.getFileHandle(name);

 
 
Parameters

 
@@ -61,7 +61,7 @@ 
Examples

 
The following example returns a file handle with the specified name, if the file does
   not exist it is created.

 
-
const fileName = 'fileToGetName';
+
const fileName = 'fileToGetName';
 
 // assuming we have a directory handle: 'currentDirHandle'
 const fileHandle = currentDirHandle.getFileHandle(fileName, {create: true});

diff --git a/files/en-us/web/api/filesystemdirectoryhandle/index.html b/files/en-us/web/api/filesystemdirectoryhandle/index.html
index 33ba95e0dbdd230..1ff08565f718f1d 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/index.html
@@ -43,14 +43,14 @@ 
Examples

 
 
The following example returns a directory handle with the specified name, if the directory does not exist it is created.

 
-
const dirName = 'directoryToGetName';
+
const dirName = 'directoryToGetName';
 
 // assuming we have a directory handle: 'currentDirHandle'
 const subDir = currentDirHandle.getDirectoryHandle(dirName, {create: true});

 
 
The following asynchronous function uses resolve() to find the path to a chosen file, relative to a specified directory handle.

 
-
async function returnPathDirectories(directoryHandle) {
+
async function returnPathDirectories(directoryHandle) {
 
   // Get a file handle by showing a file picker:
   const handle = await self.showOpenFilePicker();
diff --git a/files/en-us/web/api/filesystemdirectoryhandle/keys/index.html b/files/en-us/web/api/filesystemdirectoryhandle/keys/index.html
index 176463a51f9b017..7988f2b87bc95e1 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/keys/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/keys/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
FileSystemDirectoryHandle.keys();

+
FileSystemDirectoryHandle.keys();

 
 
Parameters

 
diff --git a/files/en-us/web/api/filesystemdirectoryhandle/removeentry/index.html b/files/en-us/web/api/filesystemdirectoryhandle/removeentry/index.html
index fdb8c45100e02ca..fd910e60e4b69ac 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/removeentry/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/removeentry/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
FileSystemDirectoryHandle.removeEntry(name).then...

+  class="brush: js">FileSystemDirectoryHandle.removeEntry(name).then...

 
 
Parameters

 
@@ -58,7 +58,7 @@ 
Examples

 
 
The following example removes an entry within the directory handle.

 
-
const entryName = 'entryToRemove';
+
const entryName = 'entryToRemove';
 
 // assuming we have a directory handle: 'currentDirHandle'
 currentDirHandle.removeEntry(entryName).then( () => {
diff --git a/files/en-us/web/api/filesystemdirectoryhandle/resolve/index.html b/files/en-us/web/api/filesystemdirectoryhandle/resolve/index.html
index e93e6010907d817..48e0e573f6b1a76 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/resolve/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/resolve/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var pathArr = FileSystemDirectoryHandle.resolve(possibleDescendant);

+  class="brush: js">var pathArr = FileSystemDirectoryHandle.resolve(possibleDescendant);

 
 
Parameters

 
@@ -43,7 +43,7 @@ 
Examples

 
The following asynchronous function uses resolve() to find the path to a
   chosen file, relative to a specified directory handle.

 
-
async function returnPathDirectories(directoryHandle) {
+
async function returnPathDirectories(directoryHandle) {
 
   // Get a file handle by showing a file picker:
   const handle = await self.showOpenFilePicker();
diff --git a/files/en-us/web/api/filesystemdirectoryhandle/values/index.html b/files/en-us/web/api/filesystemdirectoryhandle/values/index.html
index 8db053d03e27f83..4fb1dba74390bce 100644
--- a/files/en-us/web/api/filesystemdirectoryhandle/values/index.html
+++ b/files/en-us/web/api/filesystemdirectoryhandle/values/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
FileSystemDirectoryHandle.values();

+
FileSystemDirectoryHandle.values();

 
 
Parameters

 
diff --git a/files/en-us/web/api/htmliframeelement/allowpaymentrequest/index.html b/files/en-us/web/api/htmliframeelement/allowpaymentrequest/index.html
index b43f302e3d4c047..9270bde627b1f89 100644
--- a/files/en-us/web/api/htmliframeelement/allowpaymentrequest/index.html
+++ b/files/en-us/web/api/htmliframeelement/allowpaymentrequest/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
var allow = htmlIFrameElement.allowPaymentRequest

+
var allow = htmlIFrameElement.allowPaymentRequest

 
 
Value

 
diff --git a/files/en-us/web/api/htmliframeelement/csp/index.html b/files/en-us/web/api/htmliframeelement/csp/index.html
index 64b9f8e9a0ced1d..333de00d7fcaed1 100644
--- a/files/en-us/web/api/htmliframeelement/csp/index.html
+++ b/files/en-us/web/api/htmliframeelement/csp/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
var csp = HTMLIFrameElement.csp
+
var csp = HTMLIFrameElement.csp
 HTMLIFrameElement.csp = csp

 
 
Value

diff --git a/files/en-us/web/api/htmliframeelement/featurepolicy/index.html b/files/en-us/web/api/htmliframeelement/featurepolicy/index.html
index f7dd2aeae2f3c13..484a4753b5b5175 100644
--- a/files/en-us/web/api/htmliframeelement/featurepolicy/index.html
+++ b/files/en-us/web/api/htmliframeelement/featurepolicy/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
var policy = HTMLIFrameElement.featurePolicy

+  class="brush: js">var policy = HTMLIFrameElement.featurePolicy

 
 
Value

 
diff --git a/files/en-us/web/api/htmliframeelement/referrerpolicy/index.html b/files/en-us/web/api/htmliframeelement/referrerpolicy/index.html
index 1e942a9617ad679..8978e42433b6760 100644
--- a/files/en-us/web/api/htmliframeelement/referrerpolicy/index.html
+++ b/files/en-us/web/api/htmliframeelement/referrerpolicy/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
refStr = iframeElt.referrerPolicy;
+
refStr = iframeElt.referrerPolicy;
 iframeElt.referrerPolicy = refStr;

 
 
Values

diff --git a/files/en-us/web/api/htmliframeelement/src/index.html b/files/en-us/web/api/htmliframeelement/src/index.html
index 3d898601bd0ccfb..cefe5f09d60de05 100644
--- a/files/en-us/web/api/htmliframeelement/src/index.html
+++ b/files/en-us/web/api/htmliframeelement/src/index.html
@@ -11,7 +11,7 @@
 
 
Syntax

 
-
refStr = iframeElt.src;
+
refStr = iframeElt.src;
 iframeElt.src= refStr;
 

 
diff --git a/files/en-us/web/api/htmllinkelement/as/index.html b/files/en-us/web/api/htmllinkelement/as/index.html
index d8012942539a41f..39db10dd09caf85 100644
--- a/files/en-us/web/api/htmllinkelement/as/index.html
+++ b/files/en-us/web/api/htmllinkelement/as/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
var as = HTMLLinkElement.as
+
var as = HTMLLinkElement.as
 HTMLLinkElement.as = as

 
 
Value

diff --git a/files/en-us/web/api/htmllinkelement/referrerpolicy/index.html b/files/en-us/web/api/htmllinkelement/referrerpolicy/index.html
index 036a25d651066a3..5bc84652bc7791d 100644
--- a/files/en-us/web/api/htmllinkelement/referrerpolicy/index.html
+++ b/files/en-us/web/api/htmllinkelement/referrerpolicy/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
DOMString HTMLLinkElement.referrerPolicy

+
DOMString HTMLLinkElement.referrerPolicy

 
 
Example

 
diff --git a/files/en-us/web/api/htmllinkelement/rel/index.html b/files/en-us/web/api/htmllinkelement/rel/index.html
index 006f43ab923e479..70f83363f824d86 100644
--- a/files/en-us/web/api/htmllinkelement/rel/index.html
+++ b/files/en-us/web/api/htmllinkelement/rel/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
var relstr = linkElt.rel;
+
var relstr = linkElt.rel;
 linkElt.rel = relstr;
 

 
diff --git a/files/en-us/web/api/htmllinkelement/rellist/index.html b/files/en-us/web/api/htmllinkelement/rellist/index.html
index 1abf9c9dbd62eec..4459e8fa5069de7 100644
--- a/files/en-us/web/api/htmllinkelement/rellist/index.html
+++ b/files/en-us/web/api/htmllinkelement/rellist/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
var relstr = linkElt.relList;
+
var relstr = linkElt.relList;
 

 
 
Example

diff --git a/files/en-us/web/api/htmlshadowelement/getdistributednodes/index.html b/files/en-us/web/api/htmlshadowelement/getdistributednodes/index.html
index 996f870aaab7c26..bdb0a78736d269b 100644
--- a/files/en-us/web/api/htmlshadowelement/getdistributednodes/index.html
+++ b/files/en-us/web/api/htmlshadowelement/getdistributednodes/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
var nodeList = object.getDistributedNodes()
+
var nodeList = object.getDistributedNodes()
 

 
 
Example

diff --git a/files/en-us/web/api/htmltableelement/align/index.html b/files/en-us/web/api/htmltableelement/align/index.html
index 4576c88c8becc2e..c38060f796ae1c4 100644
--- a/files/en-us/web/api/htmltableelement/align/index.html
+++ b/files/en-us/web/api/htmltableelement/align/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
HTMLTableElement.align = alignment;
+
HTMLTableElement.align = alignment;
 var alignment = HTMLTableElement.align;

 
 
Parameters

diff --git a/files/en-us/web/api/htmltableelement/bgcolor/index.html b/files/en-us/web/api/htmltableelement/bgcolor/index.html
index 105be617e587090..25d4cf94f0310a4 100644
--- a/files/en-us/web/api/htmltableelement/bgcolor/index.html
+++ b/files/en-us/web/api/htmltableelement/bgcolor/index.html
@@ -27,7 +27,7 @@
 
 
Syntax

 
-
color = table.bgColor
+
color = table.bgColor
 table.bgColor = color

 
 
Parameters

diff --git a/files/en-us/web/api/htmltableelement/border/index.html b/files/en-us/web/api/htmltableelement/border/index.html
index 2f5a74621b75a63..6af085793520220 100644
--- a/files/en-us/web/api/htmltableelement/border/index.html
+++ b/files/en-us/web/api/htmltableelement/border/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
HTMLTableElement.border = border;
+
HTMLTableElement.border = border;
 var border = HTMLTableElement.border;
 

 
diff --git a/files/en-us/web/api/htmltableelement/caption/index.html b/files/en-us/web/api/htmltableelement/caption/index.html
index db7cce01149c447..fbed8e431b78922 100644
--- a/files/en-us/web/api/htmltableelement/caption/index.html
+++ b/files/en-us/web/api/htmltableelement/caption/index.html
@@ -16,7 +16,7 @@
 
Syntax

 
 
var string = tableElement.caption;

+  class="brush: js">var string = tableElement.caption;

 
 
Example

 
diff --git a/files/en-us/web/api/htmltableelement/cellpadding/index.html b/files/en-us/web/api/htmltableelement/cellpadding/index.html
index 6de4538042f2c79..0032249dc1630c2 100644
--- a/files/en-us/web/api/htmltableelement/cellpadding/index.html
+++ b/files/en-us/web/api/htmltableelement/cellpadding/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
HTMLTableElement.cellPadding = padding;
+
HTMLTableElement.cellPadding = padding;
 var padding = HTMLTableElement.cellPadding;

 
 
    
diff --git a/files/en-us/web/api/htmltableelement/cellspacing/index.html b/files/en-us/web/api/htmltableelement/cellspacing/index.html
index 51b4771ca3e5163..423be2cfc246b89 100644
--- a/files/en-us/web/api/htmltableelement/cellspacing/index.html
+++ b/files/en-us/web/api/htmltableelement/cellspacing/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.cellSpacing = spacing;
+
    HTMLTableElement.cellSpacing = spacing;
 var spacing = HTMLTableElement.cellSpacing;
    
 
 
    Value
    
diff --git a/files/en-us/web/api/htmltableelement/createcaption/index.html b/files/en-us/web/api/htmltableelement/createcaption/index.html
index cca18c8ec1fc390..551c4cd75845dd9 100644
--- a/files/en-us/web/api/htmltableelement/createcaption/index.html
+++ b/files/en-us/web/api/htmltableelement/createcaption/index.html
@@ -26,7 +26,7 @@
 
    Syntax
    
 
 
    HTMLTableElement = table.createCaption();
    
+	class="brush: js">HTMLTableElement = table.createCaption();
    
 
 
    Return value
    
 
@@ -38,14 +38,14 @@ 
    Example
    
 
 
    HTML
    
 
-
    <table>
+
    <table>
   <tr><td>Cell 1.1</td><td>Cell 1.2</td><td>Cell 1.3</td></tr>
   <tr><td>Cell 2.1</td><td>Cell 2.2</td><td>Cell 2.3</td></tr>
 </table>
    
 
 
    JavaScript
    
 
-
    let table = document.querySelector('table');
+
    let table = document.querySelector('table');
 let caption = table.createCaption();
 caption.textContent = 'This caption was created by JavaScript!';
    
 
diff --git a/files/en-us/web/api/htmltableelement/createtbody/index.html b/files/en-us/web/api/htmltableelement/createtbody/index.html
index 60633663af242cf..04908c9c24093d8 100644
--- a/files/en-us/web/api/htmltableelement/createtbody/index.html
+++ b/files/en-us/web/api/htmltableelement/createtbody/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    table.createTBody();
    
+
    table.createTBody();
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/htmltableelement/createtfoot/index.html b/files/en-us/web/api/htmltableelement/createtfoot/index.html
index 20bda65d320345d..01a1881f7bb3cfe 100644
--- a/files/en-us/web/api/htmltableelement/createtfoot/index.html
+++ b/files/en-us/web/api/htmltableelement/createtfoot/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    table.createTFoot();
    
+
    table.createTFoot();
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/htmltableelement/createthead/index.html b/files/en-us/web/api/htmltableelement/createthead/index.html
index 93ff26a392b9f5b..417194552df504d 100644
--- a/files/en-us/web/api/htmltableelement/createthead/index.html
+++ b/files/en-us/web/api/htmltableelement/createthead/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    table.createTHead();
    
+
    table.createTHead();
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/htmltableelement/deletecaption/index.html b/files/en-us/web/api/htmltableelement/deletecaption/index.html
index 5b01aa89d0a789d..8c47b2a3a3d7a67 100644
--- a/files/en-us/web/api/htmltableelement/deletecaption/index.html
+++ b/files/en-us/web/api/htmltableelement/deletecaption/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.deleteCaption()
    
+
    HTMLTableElement.deleteCaption()
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/htmltableelement/deleterow/index.html b/files/en-us/web/api/htmltableelement/deleterow/index.html
index bee13058c34e006..e1c5d3ad23ad644 100644
--- a/files/en-us/web/api/htmltableelement/deleterow/index.html
+++ b/files/en-us/web/api/htmltableelement/deleterow/index.html
@@ -17,7 +17,7 @@
 
    Syntax
    
 
 
    HTMLTableElement.deleteRow(index)
    
+  class="brush: js">HTMLTableElement.deleteRow(index)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/htmltableelement/deletetfoot/index.html b/files/en-us/web/api/htmltableelement/deletetfoot/index.html
index 20c30f01455edde..166259d38c44fd9 100644
--- a/files/en-us/web/api/htmltableelement/deletetfoot/index.html
+++ b/files/en-us/web/api/htmltableelement/deletetfoot/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.deleteTFoot();
    
+
    HTMLTableElement.deleteTFoot();
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/htmltableelement/deletethead/index.html b/files/en-us/web/api/htmltableelement/deletethead/index.html
index 5ce7beb15d77c49..04e4513f54ee260 100644
--- a/files/en-us/web/api/htmltableelement/deletethead/index.html
+++ b/files/en-us/web/api/htmltableelement/deletethead/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.deleteTHead();
    
+
    HTMLTableElement.deleteTHead();
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/htmltableelement/frame/index.html b/files/en-us/web/api/htmltableelement/frame/index.html
index 731cc0c527346c9..9c4d960e2ffe31f 100644
--- a/files/en-us/web/api/htmltableelement/frame/index.html
+++ b/files/en-us/web/api/htmltableelement/frame/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.frame = frameSides;
+
    HTMLTableElement.frame = frameSides;
 var frameSides = HTMLTableElement.frame;
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/htmltableelement/insertrow/index.html b/files/en-us/web/api/htmltableelement/insertrow/index.html
index fcd9e99b77ccb9d..08c20b757e2afe3 100644
--- a/files/en-us/web/api/htmltableelement/insertrow/index.html
+++ b/files/en-us/web/api/htmltableelement/insertrow/index.html
@@ -33,7 +33,7 @@
 
    Syntax
    
 
 
    var newRow = HTMLTableElement.insertRow(index);
    
+  class="brush: js">var newRow = HTMLTableElement.insertRow(index);
    
 
 
    {{domxref("HTMLTableElement")}} is a reference to an HTML {{HtmlElement("table")}}
   element.
    
diff --git a/files/en-us/web/api/htmltableelement/rows/index.html b/files/en-us/web/api/htmltableelement/rows/index.html
index 171058d35f4a5ab..237f0b59c0f90c2 100644
--- a/files/en-us/web/api/htmltableelement/rows/index.html
+++ b/files/en-us/web/api/htmltableelement/rows/index.html
@@ -31,7 +31,7 @@
 
    Syntax
    
 
 
    HTMLCollectionObject = table.rows;
    
+  class="brush: js">HTMLCollectionObject = table.rows;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/htmltableelement/rules/index.html b/files/en-us/web/api/htmltableelement/rules/index.html
index 07aa2c2e374018f..ad657f745714e07 100644
--- a/files/en-us/web/api/htmltableelement/rules/index.html
+++ b/files/en-us/web/api/htmltableelement/rules/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.rules = rules;
+
    HTMLTableElement.rules = rules;
 var rules = HTMLTableElement.rules;
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/htmltableelement/summary/index.html b/files/en-us/web/api/htmltableelement/summary/index.html
index 0f6a50331aa698e..1dfad0c24ae1d0e 100644
--- a/files/en-us/web/api/htmltableelement/summary/index.html
+++ b/files/en-us/web/api/htmltableelement/summary/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.summary = string;
+
    HTMLTableElement.summary = string;
 varstring = HTMLTableElement.summary;
    
 
 
    Example
    
diff --git a/files/en-us/web/api/htmltableelement/tbodies/index.html b/files/en-us/web/api/htmltableelement/tbodies/index.html
index 044c5a277b4fc2c..2ec82b527a464be 100644
--- a/files/en-us/web/api/htmltableelement/tbodies/index.html
+++ b/files/en-us/web/api/htmltableelement/tbodies/index.html
@@ -33,7 +33,7 @@
 
    Syntax
    
 
 
    HTMLCollectionObject = table.tBodies
    
+  class="brush: js">HTMLCollectionObject = table.tBodies
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/htmltableelement/tfoot/index.html b/files/en-us/web/api/htmltableelement/tfoot/index.html
index 770c3722bfb3640..ac7cf68e6011bcb 100644
--- a/files/en-us/web/api/htmltableelement/tfoot/index.html
+++ b/files/en-us/web/api/htmltableelement/tfoot/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    HTMLTableSectionElementObject = table.tFoot
+
    HTMLTableSectionElementObject = table.tFoot
 table.tFoot = HTMLTableSectionElementObject
 
    
 
diff --git a/files/en-us/web/api/htmltableelement/thead/index.html b/files/en-us/web/api/htmltableelement/thead/index.html
index 4521ce5a9230336..0725f4950c18ae0 100644
--- a/files/en-us/web/api/htmltableelement/thead/index.html
+++ b/files/en-us/web/api/htmltableelement/thead/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    thead_element = table.tHead;
+
    thead_element = table.tHead;
 table.tHead = thead_element;
 
    
 
diff --git a/files/en-us/web/api/htmltableelement/width/index.html b/files/en-us/web/api/htmltableelement/width/index.html
index 69b209045360f38..4dcf5aee9173154 100644
--- a/files/en-us/web/api/htmltableelement/width/index.html
+++ b/files/en-us/web/api/htmltableelement/width/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    HTMLTableElement.width = width;
+
    HTMLTableElement.width = width;
 var width = HTMLTableElement.width;
    
 
 
    Where width is a string representing the width in number of pixels or as a
diff --git a/files/en-us/web/api/idbkeyrange/bound/index.html b/files/en-us/web/api/idbkeyrange/bound/index.html
index 387973b2d286a5c..c3f490dc5744851 100644
--- a/files/en-us/web/api/idbkeyrange/bound/index.html
+++ b/files/en-us/web/api/idbkeyrange/bound/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    var myIDBKeyRange = IDBKeyRange.bound(lower, upper);
+
    var myIDBKeyRange = IDBKeyRange.bound(lower, upper);
 var myIDBKeyRange = IDBKeyRange.bound(lower, upper, lowerOpen);
 var myIDBKeyRange = IDBKeyRange.bound(lower, upper, lowerOpen, upperOpen);
 
    
diff --git a/files/en-us/web/api/idbkeyrange/includes/index.html b/files/en-us/web/api/idbkeyrange/includes/index.html
index 41a245b5d749193..7bbb0d77cb6b8b2 100644
--- a/files/en-us/web/api/idbkeyrange/includes/index.html
+++ b/files/en-us/web/api/idbkeyrange/includes/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var isIncluded = myKeyRange.includes(key)
    
+
    var isIncluded = myKeyRange.includes(key)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/idbkeyrange/lower/index.html b/files/en-us/web/api/idbkeyrange/lower/index.html
index 9a182c2049bed1e..d7c6d69fd0c368e 100644
--- a/files/en-us/web/api/idbkeyrange/lower/index.html
+++ b/files/en-us/web/api/idbkeyrange/lower/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var lower = myKeyRange.lower
    
+
    var lower = myKeyRange.lower
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/idbkeyrange/lowerbound/index.html b/files/en-us/web/api/idbkeyrange/lowerbound/index.html
index 5405a390156b7dc..3eb285482647016 100644
--- a/files/en-us/web/api/idbkeyrange/lowerbound/index.html
+++ b/files/en-us/web/api/idbkeyrange/lowerbound/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var myIDBKeyRange = IDBKeyRange.lowerBound(lower);
+
    var myIDBKeyRange = IDBKeyRange.lowerBound(lower);
 var myIDBKeyRange = IDBKeyRange.lowerBound(lower, open);
 
    
 
@@ -82,7 +82,7 @@ 
    Example
    
       too.)
    
 
 
-
    function displayData() {
+
    function displayData() {
   var keyRangeValue = IDBKeyRange.lowerBound("F");
 
   var transaction = db.transaction(['fThings'], 'readonly');
diff --git a/files/en-us/web/api/idbkeyrange/loweropen/index.html b/files/en-us/web/api/idbkeyrange/loweropen/index.html
index df809635956198b..66b8e76e6bd7a34 100644
--- a/files/en-us/web/api/idbkeyrange/loweropen/index.html
+++ b/files/en-us/web/api/idbkeyrange/loweropen/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var lowerOpen = myKeyRange.lowerOpen
    
+
    var lowerOpen = myKeyRange.lowerOpen
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/idbkeyrange/only/index.html b/files/en-us/web/api/idbkeyrange/only/index.html
index 772b3a2d00631e4..9a97d8b14efff62 100644
--- a/files/en-us/web/api/idbkeyrange/only/index.html
+++ b/files/en-us/web/api/idbkeyrange/only/index.html
@@ -23,7 +23,7 @@
 
    Syntax
    
 
 
    var myIDBKeyRange = IDBKeyRange.only(value);
    
+  class="brush: js">var myIDBKeyRange = IDBKeyRange.only(value);
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/idbkeyrange/upper/index.html b/files/en-us/web/api/idbkeyrange/upper/index.html
index 42faf312ca75213..6f33a19a6ce455f 100644
--- a/files/en-us/web/api/idbkeyrange/upper/index.html
+++ b/files/en-us/web/api/idbkeyrange/upper/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var upper = myKeyRange.upper
    
+
    var upper = myKeyRange.upper
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/idbkeyrange/upperbound/index.html b/files/en-us/web/api/idbkeyrange/upperbound/index.html
index 9dfd66ae8a4a272..aea4ec5ab86227a 100644
--- a/files/en-us/web/api/idbkeyrange/upperbound/index.html
+++ b/files/en-us/web/api/idbkeyrange/upperbound/index.html
@@ -24,7 +24,7 @@
 
    Syntax
    
 
 
    var myIDBKeyRange = IDBKeyRange.upperBound(upper[, open=false])
    
+  class="brush: js">var myIDBKeyRange = IDBKeyRange.upperBound(upper[, open=false])
    
 
 
    Parameters
    
 
@@ -79,7 +79,7 @@ 
    Example
    
       too.)
    
 
 
-
    function displayData() {
+
    function displayData() {
   var keyRangeValue = IDBKeyRange.upperBound("F");
 
   var transaction = db.transaction(['fThings'], 'readonly');
diff --git a/files/en-us/web/api/idbkeyrange/upperopen/index.html b/files/en-us/web/api/idbkeyrange/upperopen/index.html
index 889f79c155c932f..5cce20809fe4b2d 100644
--- a/files/en-us/web/api/idbkeyrange/upperopen/index.html
+++ b/files/en-us/web/api/idbkeyrange/upperopen/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var upperOpen = myKeyRange.upperOpen
    
+
    var upperOpen = myKeyRange.upperOpen
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/keyboard/getlayoutmap/index.html b/files/en-us/web/api/keyboard/getlayoutmap/index.html
index c7c5813cef156bd..042e8193b44ce2d 100644
--- a/files/en-us/web/api/keyboard/getlayoutmap/index.html
+++ b/files/en-us/web/api/keyboard/getlayoutmap/index.html
@@ -22,7 +22,7 @@
 
    Syntax
    
 
 
    var promise = Keyboard.getLayoutMap()
    
+  class="brush: js">var promise = Keyboard.getLayoutMap()
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/keyboard/lock/index.html b/files/en-us/web/api/keyboard/lock/index.html
index e78ca23a8c29353..dcccd4b081fa7d3 100644
--- a/files/en-us/web/api/keyboard/lock/index.html
+++ b/files/en-us/web/api/keyboard/lock/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    var promise = Keyboard.lock([keyCodes[]])
    
+  class="brush: js">var promise = Keyboard.lock([keyCodes[]])
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/keyboard/unlock/index.html b/files/en-us/web/api/keyboard/unlock/index.html
index e72291616d96821..5f1bead2f9bcbac 100644
--- a/files/en-us/web/api/keyboard/unlock/index.html
+++ b/files/en-us/web/api/keyboard/unlock/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    Keyboard.unlock()
    
+
    Keyboard.unlock()
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/mediarecorder/audiobitspersecond/index.html b/files/en-us/web/api/mediarecorder/audiobitspersecond/index.html
index 6cfc4c71720a09f..8e7899a29dc8e07 100644
--- a/files/en-us/web/api/mediarecorder/audiobitspersecond/index.html
+++ b/files/en-us/web/api/mediarecorder/audiobitspersecond/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var audioBitsPerSecond = MediaRecorder.audioBitsPerSecond
    
+  class="brush: js">var audioBitsPerSecond = MediaRecorder.audioBitsPerSecond
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mediarecorder/ignoremutedmedia/index.html b/files/en-us/web/api/mediarecorder/ignoremutedmedia/index.html
index 781bf2078195c22..23c03406dec0a03 100644
--- a/files/en-us/web/api/mediarecorder/ignoremutedmedia/index.html
+++ b/files/en-us/web/api/mediarecorder/ignoremutedmedia/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    var boolean = MediaRecorder.ignoreMutedMedia
+
    var boolean = MediaRecorder.ignoreMutedMedia
 MediaRecorder.ignoreMutedMedia = boolean
    
 
 
    Value
    
diff --git a/files/en-us/web/api/mediarecorder/istypesupported/index.html b/files/en-us/web/api/mediarecorder/istypesupported/index.html
index ecf83d73eb0c0ea..52753fcf346137f 100644
--- a/files/en-us/web/api/mediarecorder/istypesupported/index.html
+++ b/files/en-us/web/api/mediarecorder/istypesupported/index.html
@@ -23,7 +23,7 @@
 
    Syntax
    
 
 
    var canRecord = MediaRecorder.isTypeSupported(mimeType)
    
+  class="brush: js">var canRecord = MediaRecorder.isTypeSupported(mimeType)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/mediarecorder/mediarecorder/index.html b/files/en-us/web/api/mediarecorder/mediarecorder/index.html
index 88ae1524937245f..af7693f72664fac 100644
--- a/files/en-us/web/api/mediarecorder/mediarecorder/index.html
+++ b/files/en-us/web/api/mediarecorder/mediarecorder/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    var mediaRecorder = new MediaRecorder(stream[, options]);
    
+  class="brush: js">var mediaRecorder = new MediaRecorder(stream[, options]);
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/mediarecorder/mimetype/index.html b/files/en-us/web/api/mediarecorder/mimetype/index.html
index c3351b359a00719..4fb4d6004c60d69 100644
--- a/files/en-us/web/api/mediarecorder/mimetype/index.html
+++ b/files/en-us/web/api/mediarecorder/mimetype/index.html
@@ -36,7 +36,7 @@
 
    Syntax
    
 
 
    var mimeType = mediaRecorder.mimeType
    
+  class="brush: js">var mimeType = mediaRecorder.mimeType
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mediarecorder/ondataavailable/index.html b/files/en-us/web/api/mediarecorder/ondataavailable/index.html
index 9d976b002004422..166b45da6f8539b 100644
--- a/files/en-us/web/api/mediarecorder/ondataavailable/index.html
+++ b/files/en-us/web/api/mediarecorder/ondataavailable/index.html
@@ -54,7 +54,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.ondataavailable = function(event) { ... }
+
    MediaRecorder.ondataavailable = function(event) { ... }
 MediaRecorder.addEventListener('dataavailable', function(event) { ... })
 
    
 
diff --git a/files/en-us/web/api/mediarecorder/onerror/index.html b/files/en-us/web/api/mediarecorder/onerror/index.html
index ef65f6a37388d9e..67eec86445e9fc4 100644
--- a/files/en-us/web/api/mediarecorder/onerror/index.html
+++ b/files/en-us/web/api/mediarecorder/onerror/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.onerror = errorHandlerFunction;
+
    MediaRecorder.onerror = errorHandlerFunction;
 
    
 
 
    Value
    
@@ -76,7 +76,7 @@ 
    Example
    
   exceptions are thrown during the setup process.
    
 
 
    
-  
    function recordStream(stream) {
+  
    function recordStream(stream) {
   let recorder = null;
   let bufferList = [];
 
diff --git a/files/en-us/web/api/mediarecorder/onpause/index.html b/files/en-us/web/api/mediarecorder/onpause/index.html
index 3aab1f6b4f20c5e..d45406214914591 100644
--- a/files/en-us/web/api/mediarecorder/onpause/index.html
+++ b/files/en-us/web/api/mediarecorder/onpause/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.onpause = function(event) { ... }
+
    MediaRecorder.onpause = function(event) { ... }
 MediaRecorder.addEventListener('pause', function(event) { ... })
 
    
 
diff --git a/files/en-us/web/api/mediarecorder/onresume/index.html b/files/en-us/web/api/mediarecorder/onresume/index.html
index 8fc850d58826702..b18763af277dd95 100644
--- a/files/en-us/web/api/mediarecorder/onresume/index.html
+++ b/files/en-us/web/api/mediarecorder/onresume/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.onresume = function(event) { ... }
+
    MediaRecorder.onresume = function(event) { ... }
 MediaRecorder.addEventListener('resume', function(event) { ... })
 
    
 
diff --git a/files/en-us/web/api/mediarecorder/onstart/index.html b/files/en-us/web/api/mediarecorder/onstart/index.html
index 9d974bf75c7d2c9..16b8f75acb2dd2f 100644
--- a/files/en-us/web/api/mediarecorder/onstart/index.html
+++ b/files/en-us/web/api/mediarecorder/onstart/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.onstart = function(event) { ... }
+
    MediaRecorder.onstart = function(event) { ... }
 MediaRecorder.addEventListener('start', function(event) { ... })
    
 
 
    Example
    
diff --git a/files/en-us/web/api/mediarecorder/onstop/index.html b/files/en-us/web/api/mediarecorder/onstop/index.html
index f8929879aaae34a..2ac69f4d3c2fdd7 100644
--- a/files/en-us/web/api/mediarecorder/onstop/index.html
+++ b/files/en-us/web/api/mediarecorder/onstop/index.html
@@ -28,7 +28,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.onstop = function(event) { ... }
+
    MediaRecorder.onstop = function(event) { ... }
 MediaRecorder.addEventListener('stop', function(event) { ... })
    
 
 
    Example
    
diff --git a/files/en-us/web/api/mediarecorder/onwarning/index.html b/files/en-us/web/api/mediarecorder/onwarning/index.html
index 3a7d74189793f52..c9df83ece80a049 100644
--- a/files/en-us/web/api/mediarecorder/onwarning/index.html
+++ b/files/en-us/web/api/mediarecorder/onwarning/index.html
@@ -26,7 +26,7 @@
 
    Syntax
    
 
 
    mediaRecorder.onwarning = function(event) { ... }
+  class="brush: js">mediaRecorder.onwarning = function(event) { ... }
 mediaRecorder.addEventListener('warning', function(event) { ... })
    
 
 
    Example
    
diff --git a/files/en-us/web/api/mediarecorder/pause/index.html b/files/en-us/web/api/mediarecorder/pause/index.html
index e24767a86f802c5..cf2189d47db40a2 100644
--- a/files/en-us/web/api/mediarecorder/pause/index.html
+++ b/files/en-us/web/api/mediarecorder/pause/index.html
@@ -31,7 +31,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.pause()
    
+
    MediaRecorder.pause()
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/mediarecorder/requestdata/index.html b/files/en-us/web/api/mediarecorder/requestdata/index.html
index 68ff75907070452..00dcad0ba16874c 100644
--- a/files/en-us/web/api/mediarecorder/requestdata/index.html
+++ b/files/en-us/web/api/mediarecorder/requestdata/index.html
@@ -37,7 +37,7 @@
 
 
    Syntax
    
 
-
    MediaRecorder.requestData()
    
+
    MediaRecorder.requestData()
    
 
 
    Errors
    
 
diff --git a/files/en-us/web/api/mediarecorder/resume/index.html b/files/en-us/web/api/mediarecorder/resume/index.html
index 5857b26b2504b4f..4589246d848063e 100644
--- a/files/en-us/web/api/mediarecorder/resume/index.html
+++ b/files/en-us/web/api/mediarecorder/resume/index.html
@@ -32,7 +32,7 @@
 
    Syntax
    
 
 
    MediaRecorder.resume()
    
+  class="brush: js">MediaRecorder.resume()
    
 
 
    Errors
    
 
diff --git a/files/en-us/web/api/mediarecorder/start/index.html b/files/en-us/web/api/mediarecorder/start/index.html
index 233fef95312b1ba..e12d7d6e9145c67 100644
--- a/files/en-us/web/api/mediarecorder/start/index.html
+++ b/files/en-us/web/api/mediarecorder/start/index.html
@@ -51,7 +51,7 @@
 
    Syntax
    
 
 
    mediaRecorder.start(timeslice)
    
+  class="brush: js">mediaRecorder.start(timeslice)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/mediarecorder/state/index.html b/files/en-us/web/api/mediarecorder/state/index.html
index 1eeb462f24843a4..f4f02375153aff6 100644
--- a/files/en-us/web/api/mediarecorder/state/index.html
+++ b/files/en-us/web/api/mediarecorder/state/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    var state = MediaRecorder.state
    
+
    var state = MediaRecorder.state
    
 
 
    Values
    
 
diff --git a/files/en-us/web/api/mediarecorder/stop/index.html b/files/en-us/web/api/mediarecorder/stop/index.html
index 4daa214faeee9b2..2eb933d70fad378 100644
--- a/files/en-us/web/api/mediarecorder/stop/index.html
+++ b/files/en-us/web/api/mediarecorder/stop/index.html
@@ -34,7 +34,7 @@
 
    Syntax
    
 
 
    MediaRecorder.stop()
    
+  class="brush: js">MediaRecorder.stop()
    
 
 
    Errors
    
 
diff --git a/files/en-us/web/api/mediarecorder/stream/index.html b/files/en-us/web/api/mediarecorder/stream/index.html
index cd5c51a9793ab19..0c5415e3b09553c 100644
--- a/files/en-us/web/api/mediarecorder/stream/index.html
+++ b/files/en-us/web/api/mediarecorder/stream/index.html
@@ -18,7 +18,7 @@
 
    Syntax
    
 
 
    var stream = MediaRecorder.stream
    
+   class="brush: js">var stream = MediaRecorder.stream
    
 
 
    Values
    
 
diff --git a/files/en-us/web/api/mediarecorder/videobitspersecond/index.html b/files/en-us/web/api/mediarecorder/videobitspersecond/index.html
index 60d2df972784ec7..535afaee8ea01f6 100644
--- a/files/en-us/web/api/mediarecorder/videobitspersecond/index.html
+++ b/files/en-us/web/api/mediarecorder/videobitspersecond/index.html
@@ -12,7 +12,7 @@
 
    Syntax
    
 
 
    var videoBitsPerSecond = MediaRecorder.videoBitsPerSecond
    
+    class="brush: js">var videoBitsPerSecond = MediaRecorder.videoBitsPerSecond
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mediasettingsrange/max/index.html b/files/en-us/web/api/mediasettingsrange/max/index.html
index 5cb90eb2af791c6..cddfae79a9621fe 100644
--- a/files/en-us/web/api/mediasettingsrange/max/index.html
+++ b/files/en-us/web/api/mediasettingsrange/max/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var max = mediaSettingsRange.max
    
+	class="brush: js">var max = mediaSettingsRange.max
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mediasettingsrange/min/index.html b/files/en-us/web/api/mediasettingsrange/min/index.html
index 5a9643e1adf3843..eb1d9bc0f898d6d 100644
--- a/files/en-us/web/api/mediasettingsrange/min/index.html
+++ b/files/en-us/web/api/mediasettingsrange/min/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var min = mediaSettingsRange.min
    
+	class="brush: js">var min = mediaSettingsRange.min
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mediasettingsrange/step/index.html b/files/en-us/web/api/mediasettingsrange/step/index.html
index d2ccb318dafdcde..d67f608faa2da6c 100644
--- a/files/en-us/web/api/mediasettingsrange/step/index.html
+++ b/files/en-us/web/api/mediasettingsrange/step/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var step = mediaSettingsRange.step
    
+	class="brush: js">var step = mediaSettingsRange.step
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mouseevent/altkey/index.html b/files/en-us/web/api/mouseevent/altkey/index.html
index 2076740e31b5004..0a6cd99e1e8d6d9 100644
--- a/files/en-us/web/api/mouseevent/altkey/index.html
+++ b/files/en-us/web/api/mouseevent/altkey/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    var altKeyPressed = instanceOfMouseEvent.altKey
+
    var altKeyPressed = instanceOfMouseEvent.altKey
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/button/index.html b/files/en-us/web/api/mouseevent/button/index.html
index e017edf38eedc03..909036d1d99ad8d 100644
--- a/files/en-us/web/api/mouseevent/button/index.html
+++ b/files/en-us/web/api/mouseevent/button/index.html
@@ -33,7 +33,7 @@
 
 
    Syntax
    
 
-
    var buttonPressed = instanceOfMouseEvent.button
+
    var buttonPressed = instanceOfMouseEvent.button
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/buttons/index.html b/files/en-us/web/api/mouseevent/buttons/index.html
index 64db2fd0f147dd9..2ce1e557e1ca702 100644
--- a/files/en-us/web/api/mouseevent/buttons/index.html
+++ b/files/en-us/web/api/mouseevent/buttons/index.html
@@ -33,7 +33,7 @@
 
 
    Syntax
    
 
-
    var buttonsPressed = instanceOfMouseEvent.buttons
+
    var buttonsPressed = instanceOfMouseEvent.buttons
 
    
 
 
    Return value
    
@@ -59,12 +59,12 @@ 
    Example
    
 
 
    HTML
    
 
-
    <p>Click anywhere with one or more mouse buttons.</p>
+
    <p>Click anywhere with one or more mouse buttons.</p>
 <pre id="log">buttons: </pre>
    
 
 
    JavaScript
    
 
-
    let log = document.createTextNode('?');   // let log = new Text('?');
+
    let log = document.createTextNode('?');   // let log = new Text('?');
 
 function logButtons(e) {
   log.data = `${e.buttons} (${e.type})`;  // log.nodeValue= `${e.buttons} (${e.type})`;
diff --git a/files/en-us/web/api/mouseevent/clientx/index.html b/files/en-us/web/api/mouseevent/clientx/index.html
index fcbc663526f849d..e3dae7e822edfa3 100644
--- a/files/en-us/web/api/mouseevent/clientx/index.html
+++ b/files/en-us/web/api/mouseevent/clientx/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    var x = instanceOfMouseEvent.clientX
+
    var x = instanceOfMouseEvent.clientX
 
    
 
 
    Return value
    
@@ -40,12 +40,12 @@ 
    Example
    
 
 
    HTML
    
 
-
    <p>Move your mouse to see its position.</p>
+
    <p>Move your mouse to see its position.</p>
 <p id="screen-log"></p>
    
 
 
    JavaScript
    
 
-
    let screenLog = document.querySelector('#screen-log');
+
    let screenLog = document.querySelector('#screen-log');
 document.addEventListener('mousemove', logKey);
 
 function logKey(e) {
diff --git a/files/en-us/web/api/mouseevent/clienty/index.html b/files/en-us/web/api/mouseevent/clienty/index.html
index 257fcf19c684a8b..6e81e5b14e323f5 100644
--- a/files/en-us/web/api/mouseevent/clienty/index.html
+++ b/files/en-us/web/api/mouseevent/clienty/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var y = instanceOfMouseEvent.clientY
+
    var y = instanceOfMouseEvent.clientY
 
    
 
 
    Return value
    
@@ -39,12 +39,12 @@ 
    Example
    
 
 
    HTML
    
 
-
    <p>Move your mouse to see its position.</p>
+
    <p>Move your mouse to see its position.</p>
 <p id="screen-log"></p>
    
 
 
    JavaScript
    
 
-
    let screenLog = document.querySelector('#screen-log');
+
    let screenLog = document.querySelector('#screen-log');
 document.addEventListener('mousemove', logKey);
 
 function logKey(e) {
diff --git a/files/en-us/web/api/mouseevent/ctrlkey/index.html b/files/en-us/web/api/mouseevent/ctrlkey/index.html
index 77e658485609040..a6d4b041eb8b6ca 100644
--- a/files/en-us/web/api/mouseevent/ctrlkey/index.html
+++ b/files/en-us/web/api/mouseevent/ctrlkey/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var ctrlKeyPressed = instanceOfMouseEvent.ctrlKey
+
    var ctrlKeyPressed = instanceOfMouseEvent.ctrlKey
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/getmodifierstate/index.html b/files/en-us/web/api/mouseevent/getmodifierstate/index.html
index 6dc200ce0746083..c7282ea50a75b44 100644
--- a/files/en-us/web/api/mouseevent/getmodifierstate/index.html
+++ b/files/en-us/web/api/mouseevent/getmodifierstate/index.html
@@ -23,7 +23,7 @@
 
    Syntax
    
 
 
    var active = event.getModifierState(keyArg);
    
+  class="brush: js">var active = event.getModifierState(keyArg);
    
 
 
    Returns 
    
 
diff --git a/files/en-us/web/api/mouseevent/index.html b/files/en-us/web/api/mouseevent/index.html
index 653ba4e1388fb0b..cd54d75761ec0a7 100644
--- a/files/en-us/web/api/mouseevent/index.html
+++ b/files/en-us/web/api/mouseevent/index.html
@@ -111,12 +111,12 @@ 
    Example
    
 
 
    HTML
    
 
-
    <p><label><input type="checkbox" id="checkbox"> Checked</label>
+
    <p><label><input type="checkbox" id="checkbox"> Checked</label>
 <p><button id="button">Click me</button>
    
 
 
    JavaScript
    
 
-
    function simulateClick() {
+
    function simulateClick() {
   var evt = new MouseEvent("click", {
     bubbles: true,
     cancelable: true,
diff --git a/files/en-us/web/api/mouseevent/initmouseevent/index.html b/files/en-us/web/api/mouseevent/initmouseevent/index.html
index 33a1a943d0dd6d9..ac70be51ac14347 100644
--- a/files/en-us/web/api/mouseevent/initmouseevent/index.html
+++ b/files/en-us/web/api/mouseevent/initmouseevent/index.html
@@ -32,7 +32,7 @@
 
 
    Syntax
    
 
-
    event.initMouseEvent(type, canBubble, cancelable, view,
+
    event.initMouseEvent(type, canBubble, cancelable, view,
                      detail, screenX, screenY, clientX, clientY,
                      ctrlKey, altKey, shiftKey, metaKey,
                      button, relatedTarget);
    
diff --git a/files/en-us/web/api/mouseevent/metakey/index.html b/files/en-us/web/api/mouseevent/metakey/index.html
index cf24bc3f8405d1a..30fdd8fcce40fd2 100644
--- a/files/en-us/web/api/mouseevent/metakey/index.html
+++ b/files/en-us/web/api/mouseevent/metakey/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    var metaKeyPressed = instanceOfMouseEvent.metaKey
+
    var metaKeyPressed = instanceOfMouseEvent.metaKey
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/mouseevent/index.html b/files/en-us/web/api/mouseevent/mouseevent/index.html
index d81561d047e7306..e7039e5e8c952fd 100644
--- a/files/en-us/web/api/mouseevent/mouseevent/index.html
+++ b/files/en-us/web/api/mouseevent/mouseevent/index.html
@@ -17,7 +17,7 @@
 
    Syntax
    
 
 
     event = new MouseEvent(typeArg, mouseEventInit);
    
+  class="brush: js"> event = new MouseEvent(typeArg, mouseEventInit);
    
 
 
    Values
    
 
diff --git a/files/en-us/web/api/mouseevent/movementx/index.html b/files/en-us/web/api/mouseevent/movementx/index.html
index b366561080b07c5..339080fde3d3a13 100644
--- a/files/en-us/web/api/mouseevent/movementx/index.html
+++ b/files/en-us/web/api/mouseevent/movementx/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var xShift = instanceOfMouseEvent.movementX;
+
    var xShift = instanceOfMouseEvent.movementX;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/movementy/index.html b/files/en-us/web/api/mouseevent/movementy/index.html
index ad6276f61c9e2cd..99fc5b290649cf9 100644
--- a/files/en-us/web/api/mouseevent/movementy/index.html
+++ b/files/en-us/web/api/mouseevent/movementy/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    var yShift = instanceOfMouseEvent.movementY;
+
    var yShift = instanceOfMouseEvent.movementY;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/mozinputsource/index.html b/files/en-us/web/api/mouseevent/mozinputsource/index.html
index 8046f036944396b..ee96a81d0624eab 100644
--- a/files/en-us/web/api/mouseevent/mozinputsource/index.html
+++ b/files/en-us/web/api/mouseevent/mozinputsource/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var source = instanceOfMouseEvent.mozInputSource;
    
+  class="brush: js">var source = instanceOfMouseEvent.mozInputSource;
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/mouseevent/offsetx/index.html b/files/en-us/web/api/mouseevent/offsetx/index.html
index 1ddb05dc9d847f3..3f65383361d04d2 100644
--- a/files/en-us/web/api/mouseevent/offsetx/index.html
+++ b/files/en-us/web/api/mouseevent/offsetx/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var xOffset = instanceOfMouseEvent.offsetX;
+
    var xOffset = instanceOfMouseEvent.offsetX;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/offsety/index.html b/files/en-us/web/api/mouseevent/offsety/index.html
index 9e51ef39b81eb66..a91bbec1fb54355 100644
--- a/files/en-us/web/api/mouseevent/offsety/index.html
+++ b/files/en-us/web/api/mouseevent/offsety/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var yOffset = instanceOfMouseEvent.offsetY;
+
    var yOffset = instanceOfMouseEvent.offsetY;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/pagex/index.html b/files/en-us/web/api/mouseevent/pagex/index.html
index bcc00398670db52..584638236bf332d 100644
--- a/files/en-us/web/api/mouseevent/pagex/index.html
+++ b/files/en-us/web/api/mouseevent/pagex/index.html
@@ -38,7 +38,7 @@
 
    Syntax
    
 
 
    var pageX = MouseEvent.pageX;
    
+  class="brush: js">var pageX = MouseEvent.pageX;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/mouseevent/pagey/index.html b/files/en-us/web/api/mouseevent/pagey/index.html
index 10cb0eaeecd9776..d62c9bc8119d595 100644
--- a/files/en-us/web/api/mouseevent/pagey/index.html
+++ b/files/en-us/web/api/mouseevent/pagey/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var pos = event.pageY;
    
+
    var pos = event.pageY;
    
 
 
    Originally, this property was defined as a long integer. The CSSOM View
   Module redefined it as a double float. See the Browser compatibility
diff --git a/files/en-us/web/api/mouseevent/region/index.html b/files/en-us/web/api/mouseevent/region/index.html
index 57d01fef2a2879e..84a347800ec5055 100644
--- a/files/en-us/web/api/mouseevent/region/index.html
+++ b/files/en-us/web/api/mouseevent/region/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    var hitRegion = instanceOfMouseEvent.region
+
    var hitRegion = instanceOfMouseEvent.region
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/relatedtarget/index.html b/files/en-us/web/api/mouseevent/relatedtarget/index.html
index 4ad9859de4efff6..df36bb6c8bf99b7 100644
--- a/files/en-us/web/api/mouseevent/relatedtarget/index.html
+++ b/files/en-us/web/api/mouseevent/relatedtarget/index.html
@@ -62,7 +62,7 @@
 
 
    Syntax
    
 
-
    var target = instanceOfMouseEvent.relatedTarget
+
    var target = instanceOfMouseEvent.relatedTarget
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/screenx/index.html b/files/en-us/web/api/mouseevent/screenx/index.html
index c92f6e6ef98c2f7..305f609043b3c81 100644
--- a/files/en-us/web/api/mouseevent/screenx/index.html
+++ b/files/en-us/web/api/mouseevent/screenx/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    var x = instanceOfMouseEvent.screenX
+
    var x = instanceOfMouseEvent.screenX
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/screeny/index.html b/files/en-us/web/api/mouseevent/screeny/index.html
index c122adf11768aef..9c8ed4d4181bce1 100644
--- a/files/en-us/web/api/mouseevent/screeny/index.html
+++ b/files/en-us/web/api/mouseevent/screeny/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var y = instanceOfMouseEvent.screenY
+
    var y = instanceOfMouseEvent.screenY
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/shiftkey/index.html b/files/en-us/web/api/mouseevent/shiftkey/index.html
index 534ab5d350e6f8d..f1e66b592bac7be 100644
--- a/files/en-us/web/api/mouseevent/shiftkey/index.html
+++ b/files/en-us/web/api/mouseevent/shiftkey/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    var shiftKeyPressed = instanceOfMouseEvent.shiftKey
+
    var shiftKeyPressed = instanceOfMouseEvent.shiftKey
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/mouseevent/which/index.html b/files/en-us/web/api/mouseevent/which/index.html
index dd86c3dadd4000a..52ecab19dd1c68c 100644
--- a/files/en-us/web/api/mouseevent/which/index.html
+++ b/files/en-us/web/api/mouseevent/which/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    var buttonPressed = instanceOfMouseEvent.which
+
    var buttonPressed = instanceOfMouseEvent.which
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/networkinformation/downlink/index.html b/files/en-us/web/api/networkinformation/downlink/index.html
index 1a887a6c90d1f43..3581ab58f5a0b6f 100644
--- a/files/en-us/web/api/networkinformation/downlink/index.html
+++ b/files/en-us/web/api/networkinformation/downlink/index.html
@@ -28,7 +28,7 @@
 
    Syntax
    
 
 
    var downLink = NetworkInformation.downlink
    
+  class="brush: js">var downLink = NetworkInformation.downlink
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/networkinformation/downlinkmax/index.html b/files/en-us/web/api/networkinformation/downlinkmax/index.html
index 7b5f8db25de5aef..3ab4c843986ccb9 100644
--- a/files/en-us/web/api/networkinformation/downlinkmax/index.html
+++ b/files/en-us/web/api/networkinformation/downlinkmax/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    var max = NetworkInformation.downlinkMax
    
+  class="brush: js">var max = NetworkInformation.downlinkMax
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/networkinformation/effectivetype/index.html b/files/en-us/web/api/networkinformation/effectivetype/index.html
index 70c37fe2c25e531..db1a7bef1528c0c 100644
--- a/files/en-us/web/api/networkinformation/effectivetype/index.html
+++ b/files/en-us/web/api/networkinformation/effectivetype/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var effectiveType = NetworkInformation.effectiveType
    
+  class="brush: js">var effectiveType = NetworkInformation.effectiveType
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/networkinformation/onchange/index.html b/files/en-us/web/api/networkinformation/onchange/index.html
index e4256979d109cf4..5f1cca8bbdc3ad2 100644
--- a/files/en-us/web/api/networkinformation/onchange/index.html
+++ b/files/en-us/web/api/networkinformation/onchange/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    netInfo.onchange = function() { ... }
+
    netInfo.onchange = function() { ... }
 
    
 
 
    Examples
    
diff --git a/files/en-us/web/api/networkinformation/rtt/index.html b/files/en-us/web/api/networkinformation/rtt/index.html
index 07e684c0ce72774..aaa8e5766cca145 100644
--- a/files/en-us/web/api/networkinformation/rtt/index.html
+++ b/files/en-us/web/api/networkinformation/rtt/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    rtt = NetworkInformation.rtt
    
+
    rtt = NetworkInformation.rtt
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/networkinformation/savedata/index.html b/files/en-us/web/api/networkinformation/savedata/index.html
index e297e7a05929369..683a7a15b421168 100644
--- a/files/en-us/web/api/networkinformation/savedata/index.html
+++ b/files/en-us/web/api/networkinformation/savedata/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var saveData = NetworkInformation.saveData;
    
+  class="brush: js">var saveData = NetworkInformation.saveData;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/networkinformation/type/index.html b/files/en-us/web/api/networkinformation/type/index.html
index 199c816e1534905..c7ef294796a5c62 100644
--- a/files/en-us/web/api/networkinformation/type/index.html
+++ b/files/en-us/web/api/networkinformation/type/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    var type = netInfo.type
    
+
    var type = netInfo.type
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/api/nodeiterator/detach/index.html b/files/en-us/web/api/nodeiterator/detach/index.html
index eb2c5fe318fdc49..4fdef30bfa664af 100644
--- a/files/en-us/web/api/nodeiterator/detach/index.html
+++ b/files/en-us/web/api/nodeiterator/detach/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    nodeIterator.detach();
+
    nodeIterator.detach();
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/expandentityreferences/index.html b/files/en-us/web/api/nodeiterator/expandentityreferences/index.html
index da1cef7638c733e..ac1b7070a4c31f7 100644
--- a/files/en-us/web/api/nodeiterator/expandentityreferences/index.html
+++ b/files/en-us/web/api/nodeiterator/expandentityreferences/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    expand = nodeIterator.expandEntityReferences;
+
    expand = nodeIterator.expandEntityReferences;
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/filter/index.html b/files/en-us/web/api/nodeiterator/filter/index.html
index 67d5b8864436829..222d7ddf9d2eec2 100644
--- a/files/en-us/web/api/nodeiterator/filter/index.html
+++ b/files/en-us/web/api/nodeiterator/filter/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    nodeFilter = nodeIterator.filter;
+
    nodeFilter = nodeIterator.filter;
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/index.html b/files/en-us/web/api/nodeiterator/index.html
index be3b2a966eab616..8d0ffca906e75ff 100644
--- a/files/en-us/web/api/nodeiterator/index.html
+++ b/files/en-us/web/api/nodeiterator/index.html
@@ -17,7 +17,7 @@ 
    Syntax
    
 	{{domxref("Document.createNodeIterator()")}} method, as follows:
    
 
 
    const nodeIterator = document.createNodeIterator(root, whatToShow, filter);
    
+	class="brush: js">const nodeIterator = document.createNodeIterator(root, whatToShow, filter);
    
 
 
    Properties
    
 
diff --git a/files/en-us/web/api/nodeiterator/nextnode/index.html b/files/en-us/web/api/nodeiterator/nextnode/index.html
index 5d2ac10312d7a2b..bedcfd46229a810 100644
--- a/files/en-us/web/api/nodeiterator/nextnode/index.html
+++ b/files/en-us/web/api/nodeiterator/nextnode/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    node = nodeIterator.nextNode();
+
    node = nodeIterator.nextNode();
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/pointerbeforereferencenode/index.html b/files/en-us/web/api/nodeiterator/pointerbeforereferencenode/index.html
index 73af7cb92c7166a..ec1ecd210cfbd94 100644
--- a/files/en-us/web/api/nodeiterator/pointerbeforereferencenode/index.html
+++ b/files/en-us/web/api/nodeiterator/pointerbeforereferencenode/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    flag = nodeIterator.pointerBeforeReferenceNode;
+
    flag = nodeIterator.pointerBeforeReferenceNode;
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/previousnode/index.html b/files/en-us/web/api/nodeiterator/previousnode/index.html
index 12b6ea93bb8223b..f32070b7f2d9632 100644
--- a/files/en-us/web/api/nodeiterator/previousnode/index.html
+++ b/files/en-us/web/api/nodeiterator/previousnode/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    node = nodeIterator.previousNode();
+
    node = nodeIterator.previousNode();
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/referencenode/index.html b/files/en-us/web/api/nodeiterator/referencenode/index.html
index 0f736efc8f29d8e..02dfa4faa2993df 100644
--- a/files/en-us/web/api/nodeiterator/referencenode/index.html
+++ b/files/en-us/web/api/nodeiterator/referencenode/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    node = nodeIterator.referenceNode;
+
    node = nodeIterator.referenceNode;
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/root/index.html b/files/en-us/web/api/nodeiterator/root/index.html
index ee87250844e2541..df5e88821c0427f 100644
--- a/files/en-us/web/api/nodeiterator/root/index.html
+++ b/files/en-us/web/api/nodeiterator/root/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    root = nodeIterator.root;
+
    root = nodeIterator.root;
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/nodeiterator/whattoshow/index.html b/files/en-us/web/api/nodeiterator/whattoshow/index.html
index dc20be0ae8c439c..e91ac0ddb8131fc 100644
--- a/files/en-us/web/api/nodeiterator/whattoshow/index.html
+++ b/files/en-us/web/api/nodeiterator/whattoshow/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    var nodeTypes = nodeIterator.whatToShow;
+
    var nodeTypes = nodeIterator.whatToShow;
 
    
 
 
    The values that can be combined to form the bitmask are:
    
diff --git a/files/en-us/web/api/ovr_multiview2/framebuffertexturemultiviewovr/index.html b/files/en-us/web/api/ovr_multiview2/framebuffertexturemultiviewovr/index.html
index 65f86c022edc84e..7d8dd1e9b43d332 100644
--- a/files/en-us/web/api/ovr_multiview2/framebuffertexturemultiviewovr/index.html
+++ b/files/en-us/web/api/ovr_multiview2/framebuffertexturemultiviewovr/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    void ext.framebufferTextureMultiviewOVR(target, attachment, texture, level, baseViewIndex, numViews);
+
    void ext.framebufferTextureMultiviewOVR(target, attachment, texture, level, baseViewIndex, numViews);
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/pannernode/orientationx/index.html b/files/en-us/web/api/pannernode/orientationx/index.html
index 666c11a92b98e4b..1d391ae811422ab 100644
--- a/files/en-us/web/api/pannernode/orientationx/index.html
+++ b/files/en-us/web/api/pannernode/orientationx/index.html
@@ -38,7 +38,7 @@
 
 
    Syntax
    
 
-
    var orientationX = PannerNode.orientationX;
+
    var orientationX = PannerNode.orientationX;
 
 PannerNode.orientationX.value = newOrientationX;
 
    
diff --git a/files/en-us/web/api/pannernode/orientationy/index.html b/files/en-us/web/api/pannernode/orientationy/index.html
index 0bbb94d69d176c6..da8c5e385df2dbd 100644
--- a/files/en-us/web/api/pannernode/orientationy/index.html
+++ b/files/en-us/web/api/pannernode/orientationy/index.html
@@ -39,7 +39,7 @@
 
 
    Syntax
    
 
-
    var orientationY = PannerNode.orientationY;
+
    var orientationY = PannerNode.orientationY;
 
 PannerNode.orientationY.value = newOrientationY;
 
    
diff --git a/files/en-us/web/api/pannernode/orientationz/index.html b/files/en-us/web/api/pannernode/orientationz/index.html
index 1709096f2d2eae7..4986392080df6ca 100644
--- a/files/en-us/web/api/pannernode/orientationz/index.html
+++ b/files/en-us/web/api/pannernode/orientationz/index.html
@@ -37,7 +37,7 @@
 
 
    Syntax
    
 
-
    var orientationZ = PannerNode.orientationZ;
+
    var orientationZ = PannerNode.orientationZ;
 
 PannerNode.orientationZ.value = newOrientationZ;
 
    
diff --git a/files/en-us/web/api/pannernode/positionx/index.html b/files/en-us/web/api/pannernode/positionx/index.html
index 632806a13eb1bf6..77ed4ab77858fd6 100644
--- a/files/en-us/web/api/pannernode/positionx/index.html
+++ b/files/en-us/web/api/pannernode/positionx/index.html
@@ -39,7 +39,7 @@
 
 
    Syntax
    
 
-
    var positionX = PannerNode.positionX;
+
    var positionX = PannerNode.positionX;
 
 PannerNode.positionX.value = newPositionX;
 
    
diff --git a/files/en-us/web/api/pannernode/positiony/index.html b/files/en-us/web/api/pannernode/positiony/index.html
index e0229c2130ba152..2a85806228db4b2 100644
--- a/files/en-us/web/api/pannernode/positiony/index.html
+++ b/files/en-us/web/api/pannernode/positiony/index.html
@@ -38,7 +38,7 @@
 
 
    Syntax
    
 
-
    var positionY = PannerNode.positionY;
+
    var positionY = PannerNode.positionY;
 
 PannerNode.positionY.value = newPositionY;
 
    
diff --git a/files/en-us/web/api/pannernode/positionz/index.html b/files/en-us/web/api/pannernode/positionz/index.html
index 7ae310c0ccaef89..734fea755625492 100644
--- a/files/en-us/web/api/pannernode/positionz/index.html
+++ b/files/en-us/web/api/pannernode/positionz/index.html
@@ -38,7 +38,7 @@
 
 
    Syntax
    
 
-
    var positionZ = PannerNode.positionZ;
+
    var positionZ = PannerNode.positionZ;
 
 PannerNode.positionZ.value = newPositionZ;
 
    
diff --git a/files/en-us/web/api/paymentaddress/addressline/index.html b/files/en-us/web/api/paymentaddress/addressline/index.html
index 2e804cf8e8c82d0..5625504c98b3479 100644
--- a/files/en-us/web/api/paymentaddress/addressline/index.html
+++ b/files/en-us/web/api/paymentaddress/addressline/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    var paymentAddressLines = PaymentAddress.addressLine;
    
+  class="brush: js">var paymentAddressLines = PaymentAddress.addressLine;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/city/index.html b/files/en-us/web/api/paymentaddress/city/index.html
index c95e3fb9ec7ce9c..9d640d956222753 100644
--- a/files/en-us/web/api/paymentaddress/city/index.html
+++ b/files/en-us/web/api/paymentaddress/city/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    var paymentCity = PaymentAddress.city;
    
+  class="brush: js">var paymentCity = PaymentAddress.city;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/country/index.html b/files/en-us/web/api/paymentaddress/country/index.html
index 84b5a4340c8ab0b..57438b76934f343 100644
--- a/files/en-us/web/api/paymentaddress/country/index.html
+++ b/files/en-us/web/api/paymentaddress/country/index.html
@@ -26,7 +26,7 @@
 
    Syntax
    
 
 
    var paymentCountry = PaymentAddress.country;
    
+  class="brush: js">var paymentCountry = PaymentAddress.country;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/dependentlocality/index.html b/files/en-us/web/api/paymentaddress/dependentlocality/index.html
index a94f39eef188076..8fa70b51751afc9 100644
--- a/files/en-us/web/api/paymentaddress/dependentlocality/index.html
+++ b/files/en-us/web/api/paymentaddress/dependentlocality/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    var paymentDependentLocality = PaymentAddress.dependentLocality;
    
+  class="brush: js">var paymentDependentLocality = PaymentAddress.dependentLocality;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/languagecode/index.html b/files/en-us/web/api/paymentaddress/languagecode/index.html
index 7fafea973f9f447..a2be77c452a33ba 100644
--- a/files/en-us/web/api/paymentaddress/languagecode/index.html
+++ b/files/en-us/web/api/paymentaddress/languagecode/index.html
@@ -29,7 +29,7 @@
 
    Syntax
    
 
 
    var paymentLanguageCode = PaymentAddress.languageCode;
    
+  class="brush: js">var paymentLanguageCode = PaymentAddress.languageCode;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/organization/index.html b/files/en-us/web/api/paymentaddress/organization/index.html
index f97b311683f7fe1..60530163c5f931f 100644
--- a/files/en-us/web/api/paymentaddress/organization/index.html
+++ b/files/en-us/web/api/paymentaddress/organization/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    var paymentOrganization = PaymentAddress.organization;
    
+  class="brush: js">var paymentOrganization = PaymentAddress.organization;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/phone/index.html b/files/en-us/web/api/paymentaddress/phone/index.html
index bdd62b3b9da94d8..ca27ec6a6888fc7 100644
--- a/files/en-us/web/api/paymentaddress/phone/index.html
+++ b/files/en-us/web/api/paymentaddress/phone/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    var paymentPhone = PaymentAddress.phone;
    
+  class="brush: js">var paymentPhone = PaymentAddress.phone;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/postalcode/index.html b/files/en-us/web/api/paymentaddress/postalcode/index.html
index 50f36ba62195ec8..b7dc5b4211ae4d6 100644
--- a/files/en-us/web/api/paymentaddress/postalcode/index.html
+++ b/files/en-us/web/api/paymentaddress/postalcode/index.html
@@ -31,7 +31,7 @@
 
    Syntax
    
 
 
    var paymentPostalCode = PaymentAddress.postalCode;
    
+  class="brush: js">var paymentPostalCode = PaymentAddress.postalCode;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/recipient/index.html b/files/en-us/web/api/paymentaddress/recipient/index.html
index 44f6742592e063c..51215fd18d936b9 100644
--- a/files/en-us/web/api/paymentaddress/recipient/index.html
+++ b/files/en-us/web/api/paymentaddress/recipient/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var paymentRecipient = PaymentAddress.recipient;
    
+  class="brush: js">var paymentRecipient = PaymentAddress.recipient;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/region/index.html b/files/en-us/web/api/paymentaddress/region/index.html
index 8a69cc6097d0d98..55d0a8fd05f9c3d 100644
--- a/files/en-us/web/api/paymentaddress/region/index.html
+++ b/files/en-us/web/api/paymentaddress/region/index.html
@@ -28,7 +28,7 @@
 
    Syntax
    
 
 
    var paymentRegion = PaymentAddress.region;
    
+  class="brush: js">var paymentRegion = PaymentAddress.region;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/regioncode/index.html b/files/en-us/web/api/paymentaddress/regioncode/index.html
index b429e1bae5313f5..6097d6368b2bc57 100644
--- a/files/en-us/web/api/paymentaddress/regioncode/index.html
+++ b/files/en-us/web/api/paymentaddress/regioncode/index.html
@@ -35,7 +35,7 @@
 
    Syntax
    
 
 
    var regionCode = paymentAddress.regionCode;
    
+  class="brush: js">var regionCode = paymentAddress.regionCode;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/sortingcode/index.html b/files/en-us/web/api/paymentaddress/sortingcode/index.html
index 8c786d40e49b77c..772a8c8b771e400 100644
--- a/files/en-us/web/api/paymentaddress/sortingcode/index.html
+++ b/files/en-us/web/api/paymentaddress/sortingcode/index.html
@@ -23,7 +23,7 @@
 
    Syntax
    
 
 
    var sortingCode = PaymentAddress.sortingCode;
    
+  class="brush: js">var sortingCode = PaymentAddress.sortingCode;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/paymentaddress/tojson/index.html b/files/en-us/web/api/paymentaddress/tojson/index.html
index fa3b9c62f68dacb..0bb46b2b1a3fb8b 100644
--- a/files/en-us/web/api/paymentaddress/tojson/index.html
+++ b/files/en-us/web/api/paymentaddress/tojson/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var json = PaymentAddress.toJSON()
    
+  class="brush: js">var json = PaymentAddress.toJSON()
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/pictureinpicturewindow/height/index.html b/files/en-us/web/api/pictureinpicturewindow/height/index.html
index 38e2fb6eaac7120..65039568ad5f1c0 100644
--- a/files/en-us/web/api/pictureinpicturewindow/height/index.html
+++ b/files/en-us/web/api/pictureinpicturewindow/height/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    let height = pictureInPictureWindow.height;
    
+
    let height = pictureInPictureWindow.height;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/pictureinpicturewindow/index.html b/files/en-us/web/api/pictureinpicturewindow/index.html
index 4f0ffebdc623e36..fd6fb056ba74427 100644
--- a/files/en-us/web/api/pictureinpicturewindow/index.html
+++ b/files/en-us/web/api/pictureinpicturewindow/index.html
@@ -45,7 +45,7 @@ 
    Examples
    
 
 
    Given a <button> and a <video>, clicking the button will make the video enter the picture-in-picture mode; we then attach an event to print the floating video window dimensions to the console.
    
 
-
    const button = document.querySelector("button");
+
    const button = document.querySelector("button");
 const video = document.querySelector("video");
 
 function printPipWindowDimensions(evt) {
diff --git a/files/en-us/web/api/pictureinpicturewindow/onresize/index.html b/files/en-us/web/api/pictureinpicturewindow/onresize/index.html
index fb2799d0aefac46..76abfcbd5fb7b3f 100644
--- a/files/en-us/web/api/pictureinpicturewindow/onresize/index.html
+++ b/files/en-us/web/api/pictureinpicturewindow/onresize/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    pictureInPictureWindow.onresize = functionRef;
+
    pictureInPictureWindow.onresize = functionRef;
 
    
 
 
    Value
    
@@ -36,13 +36,13 @@ 
    Examples
    
 
 
    Window size logger
    
 
-
    <p>Resize the floating video window to fire the <code>resize</code> event.</p>
+
    <p>Resize the floating video window to fire the <code>resize</code> event.</p>
 <p>Window height: <span id="height"></span></p>
 <p>Window width: <span id="width"></span></p>
 <video id="video" muted autoplay src=""></video>
 
    
 
-
    const video = document.querySelector('#video');
+
    const video = document.querySelector('#video');
 const heightOutput = document.querySelector('#height');
 const widthOutput = document.querySelector('#width');
 
diff --git a/files/en-us/web/api/pictureinpicturewindow/resize_event/index.html b/files/en-us/web/api/pictureinpicturewindow/resize_event/index.html
index e5a7cfcfec8363a..5dcae5dfc3712a1 100644
--- a/files/en-us/web/api/pictureinpicturewindow/resize_event/index.html
+++ b/files/en-us/web/api/pictureinpicturewindow/resize_event/index.html
@@ -39,13 +39,13 @@ 
    Examples
    
 
 
    Window size logger
    
 
-
    <p>Resize the floating video window to fire the <code>resize</code> event.</p>
+
    <p>Resize the floating video window to fire the <code>resize</code> event.</p>
 <p>Window height: <span id="height"></span></p>
 <p>Window width: <span id="width"></span></p>
 <video id="video" src="" muted autoplay></video>
 
    
 
-
    const video = document.querySelector('#video');
+
    const video = document.querySelector('#video');
 const heightOutput = document.querySelector('#height');
 const widthOutput = document.querySelector('#width');
 
@@ -63,7 +63,7 @@ 
    addEventListener equivalent
    
 
 
    You could set up the event handler using the addEventListener() method:
    
 
-
    pictureInPictureWindow.addEventListener('resize', resize);
    
+
    pictureInPictureWindow.addEventListener('resize', resize);
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/api/pictureinpicturewindow/width/index.html b/files/en-us/web/api/pictureinpicturewindow/width/index.html
index 9bd6e65d48072c8..5f19945900a7a62 100644
--- a/files/en-us/web/api/pictureinpicturewindow/width/index.html
+++ b/files/en-us/web/api/pictureinpicturewindow/width/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    let width = pictureInPictureWindow.width;
    
+
    let width = pictureInPictureWindow.width;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/pointerevent/getcoalescedevents/index.html b/files/en-us/web/api/pointerevent/getcoalescedevents/index.html
index 3f13f11a3e7d348..843bd7af5a651bd 100644
--- a/files/en-us/web/api/pointerevent/getcoalescedevents/index.html
+++ b/files/en-us/web/api/pointerevent/getcoalescedevents/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var pointerEvents[] = PointerEvent.getCoalescedEvents()
    
+  class="brush: js">var pointerEvents[] = PointerEvent.getCoalescedEvents()
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/pointerevent/height/index.html b/files/en-us/web/api/pointerevent/height/index.html
index 30f5aa5c2b66b98..769c3530650f936 100644
--- a/files/en-us/web/api/pointerevent/height/index.html
+++ b/files/en-us/web/api/pointerevent/height/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var contactHeight = pointerEvent.height;
+
    var contactHeight = pointerEvent.height;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/isprimary/index.html b/files/en-us/web/api/pointerevent/isprimary/index.html
index f60d89d98deb489..fae7222eca2cfc5 100644
--- a/files/en-us/web/api/pointerevent/isprimary/index.html
+++ b/files/en-us/web/api/pointerevent/isprimary/index.html
@@ -40,7 +40,7 @@
 
 
    Syntax
    
 
-
    var isPrimary = pointerEvent.isPrimary;
+
    var isPrimary = pointerEvent.isPrimary;
 
    
 
 
    Return value
    
@@ -56,7 +56,7 @@ 
    Example
    
 
    This example illustrates using the value of isPrimary to call the
   appropriate processing function.
    
 
-
    target.addEventListener('pointerdown', function(event) {
+
    target.addEventListener('pointerdown', function(event) {
   if (event.isPrimary)
     process_primary_pointer(event);
   else
diff --git a/files/en-us/web/api/pointerevent/pointerevent/index.html b/files/en-us/web/api/pointerevent/pointerevent/index.html
index cec619f00bbdfa0..632f2fa6d240494 100644
--- a/files/en-us/web/api/pointerevent/pointerevent/index.html
+++ b/files/en-us/web/api/pointerevent/pointerevent/index.html
@@ -15,7 +15,7 @@
 
    Syntax
    
 
 
     event = new PointerEvent(type, PointerEventInit);
    
+	class="brush: js"> event = new PointerEvent(type, PointerEventInit);
    
 
 
    Arguments
    
 
diff --git a/files/en-us/web/api/pointerevent/pointerid/index.html b/files/en-us/web/api/pointerevent/pointerid/index.html
index 9c6ef2fcf7afca5..935548a288595e2 100644
--- a/files/en-us/web/api/pointerevent/pointerid/index.html
+++ b/files/en-us/web/api/pointerevent/pointerid/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    var id = pointerEvent.pointerId;
+
    var id = pointerEvent.pointerId;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/pointertype/index.html b/files/en-us/web/api/pointerevent/pointertype/index.html
index 33ae99989c3ef5d..b2793207d5351a9 100644
--- a/files/en-us/web/api/pointerevent/pointertype/index.html
+++ b/files/en-us/web/api/pointerevent/pointertype/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var pType = pointerEvent.pointerType;
+
    var pType = pointerEvent.pointerType;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/pressure/index.html b/files/en-us/web/api/pointerevent/pressure/index.html
index bd8aba68672a8fe..9c8404a5afeda13 100644
--- a/files/en-us/web/api/pointerevent/pressure/index.html
+++ b/files/en-us/web/api/pointerevent/pressure/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var pressure = pointerEvent.pressure;
+
    var pressure = pointerEvent.pressure;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/tangentialpressure/index.html b/files/en-us/web/api/pointerevent/tangentialpressure/index.html
index ec5c19ce824cce0..9355b7c4abdb727 100644
--- a/files/en-us/web/api/pointerevent/tangentialpressure/index.html
+++ b/files/en-us/web/api/pointerevent/tangentialpressure/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    var tanPressure = pointerEvent.tangentialPressure;
+
    var tanPressure = pointerEvent.tangentialPressure;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/tiltx/index.html b/files/en-us/web/api/pointerevent/tiltx/index.html
index ca49b12d008ae51..8817ffbd4e838bf 100644
--- a/files/en-us/web/api/pointerevent/tiltx/index.html
+++ b/files/en-us/web/api/pointerevent/tiltx/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var tiltX = pointerEvent.tiltX;
+
    var tiltX = pointerEvent.tiltX;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/tilty/index.html b/files/en-us/web/api/pointerevent/tilty/index.html
index 489d0d66cb1f2cb..e319c59a07c200a 100644
--- a/files/en-us/web/api/pointerevent/tilty/index.html
+++ b/files/en-us/web/api/pointerevent/tilty/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var tiltY = pointerEvent.tiltY;
+
    var tiltY = pointerEvent.tiltY;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/twist/index.html b/files/en-us/web/api/pointerevent/twist/index.html
index d368db2035cc646..ce1b3744137f86d 100644
--- a/files/en-us/web/api/pointerevent/twist/index.html
+++ b/files/en-us/web/api/pointerevent/twist/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    var twist = pointerEvent.twist;
+
    var twist = pointerEvent.twist;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/pointerevent/width/index.html b/files/en-us/web/api/pointerevent/width/index.html
index fd73b68edee40bf..2e90db3c3c0e180 100644
--- a/files/en-us/web/api/pointerevent/width/index.html
+++ b/files/en-us/web/api/pointerevent/width/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    var contactWidth = pointerEvent.width;
+
    var contactWidth = pointerEvent.width;
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/reportingobserver/disconnect/index.html b/files/en-us/web/api/reportingobserver/disconnect/index.html
index 49e63f4d3521981..5026b519906af71 100644
--- a/files/en-us/web/api/reportingobserver/disconnect/index.html
+++ b/files/en-us/web/api/reportingobserver/disconnect/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    reportingObserverInstance.disconnect()
+
    reportingObserverInstance.disconnect()
 
    
 
 
    Examples
    
diff --git a/files/en-us/web/api/reportingobserver/observe/index.html b/files/en-us/web/api/reportingobserver/observe/index.html
index 22b1a307f755cbe..d9650ee56e902a9 100644
--- a/files/en-us/web/api/reportingobserver/observe/index.html
+++ b/files/en-us/web/api/reportingobserver/observe/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    reportingObserverInstance.observe()
+
    reportingObserverInstance.observe()
 
    
 
 
    Examples
    
diff --git a/files/en-us/web/api/reportingobserver/reportingobserver/index.html b/files/en-us/web/api/reportingobserver/reportingobserver/index.html
index 683e0de33b93aed..f78c14a44812b50 100644
--- a/files/en-us/web/api/reportingobserver/reportingobserver/index.html
+++ b/files/en-us/web/api/reportingobserver/reportingobserver/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    new ReportingObserver(callback[, options]);
+
    new ReportingObserver(callback[, options]);
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/reportingobserver/takerecords/index.html b/files/en-us/web/api/reportingobserver/takerecords/index.html
index 47e351ea461151a..60ee71fe510af7f 100644
--- a/files/en-us/web/api/reportingobserver/takerecords/index.html
+++ b/files/en-us/web/api/reportingobserver/takerecords/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    reportingObserverInstance.takeRecords()
+
    reportingObserverInstance.takeRecords()
 
    
 
 
    Return value
    
diff --git a/files/en-us/web/api/rtcpeerconnectioniceerrorevent/address/index.html b/files/en-us/web/api/rtcpeerconnectioniceerrorevent/address/index.html
index 843e4c45871af70..3b2c86270c44280 100644
--- a/files/en-us/web/api/rtcpeerconnectioniceerrorevent/address/index.html
+++ b/files/en-us/web/api/rtcpeerconnectioniceerrorevent/address/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    let address = rtcPeerConnectionIceErrorEvent.address;
    
+  class="brush: js">let address = rtcPeerConnectionIceErrorEvent.address;
    
 
 
    Value
    
 
@@ -52,7 +52,7 @@ 
    Examples
    
   {{domxref("RTCPeerConnectionIceErrorEvent.errorText", "errorText")}} property's
   contents.
    
 
-
    pc.addEventListener("icecandidateerror", (event) => {
+
    pc.addEventListener("icecandidateerror", (event) => {
   let networkInfo = `[Local interface: ${event.address}:${event.port}`;
   let iceServerInfo = `[ICE server: ${event.url}`;
 
diff --git a/files/en-us/web/api/rtcsessiondescription/rtcsessiondescription/index.html b/files/en-us/web/api/rtcsessiondescription/rtcsessiondescription/index.html
index a082647f1ee9058..aae6e6b76c087f9 100644
--- a/files/en-us/web/api/rtcsessiondescription/rtcsessiondescription/index.html
+++ b/files/en-us/web/api/rtcsessiondescription/rtcsessiondescription/index.html
@@ -28,7 +28,7 @@
 
    Syntax
    
 
 
     sessionDescription = new RTCSessionDescription(rtcSessionDescriptionInit);
    
+  class="brush: js"> sessionDescription = new RTCSessionDescription(rtcSessionDescriptionInit);
    
 
 
    Values
    
 
diff --git a/files/en-us/web/api/rtcsessiondescription/sdp/index.html b/files/en-us/web/api/rtcsessiondescription/sdp/index.html
index 048aa464329ad06..1393a8c552f5327 100644
--- a/files/en-us/web/api/rtcsessiondescription/sdp/index.html
+++ b/files/en-us/web/api/rtcsessiondescription/sdp/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var value = sessionDescription.sdp;
+
    var value = sessionDescription.sdp;
 sessionDescription.sdp = value;
 
    
 
diff --git a/files/en-us/web/api/rtcsessiondescription/tojson/index.html b/files/en-us/web/api/rtcsessiondescription/tojson/index.html
index fd2e048e0d702ad..78dd3e14e819f83 100644
--- a/files/en-us/web/api/rtcsessiondescription/tojson/index.html
+++ b/files/en-us/web/api/rtcsessiondescription/tojson/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    var jsonValue = sd.toJSON();
+
    var jsonValue = sd.toJSON();
 
    
 
 
    The result value is a {{jsxref("JSON")}} object containing the following values:
    
diff --git a/files/en-us/web/api/rtcsessiondescription/type/index.html b/files/en-us/web/api/rtcsessiondescription/type/index.html
index 8ef701abcdba459..356b788244bf8bd 100644
--- a/files/en-us/web/api/rtcsessiondescription/type/index.html
+++ b/files/en-us/web/api/rtcsessiondescription/type/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    var value = sessionDescription.type;
+
    var value = sessionDescription.type;
 sessionDescription.type = value;
 
    
 
diff --git a/files/en-us/web/api/sharedworker/port/index.html b/files/en-us/web/api/sharedworker/port/index.html
index 2f41791f54c3566..01e3379531854ae 100644
--- a/files/en-us/web/api/sharedworker/port/index.html
+++ b/files/en-us/web/api/sharedworker/port/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    myWorker.port;
    
+
    myWorker.port;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/sharedworker/sharedworker/index.html b/files/en-us/web/api/sharedworker/sharedworker/index.html
index 9872d256755b8e7..d93107e895ae6b8 100644
--- a/files/en-us/web/api/sharedworker/sharedworker/index.html
+++ b/files/en-us/web/api/sharedworker/sharedworker/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    var myWorker = new SharedWorker(aURL, name);
+
    var myWorker = new SharedWorker(aURL, name);
 var myWorker = new SharedWorker(aURL, options);
    
 
 
    Parameters
    
@@ -79,7 +79,7 @@ 
    Examples
    
 
    The following code snippet shows creation of a {{domxref("SharedWorker")}} object using
   the SharedWorker() constructor and subsequent usage of the object:
    
 
-
    var myWorker = new SharedWorker('worker.js');
+
    var myWorker = new SharedWorker('worker.js');
 
 myWorker.port.start();
 
diff --git a/files/en-us/web/api/storageestimate/quota/index.html b/files/en-us/web/api/storageestimate/quota/index.html
index f222b0280dc33e5..f31060d36c8dabf 100644
--- a/files/en-us/web/api/storageestimate/quota/index.html
+++ b/files/en-us/web/api/storageestimate/quota/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    quota = StorageEstimate.quota;
+
    quota = StorageEstimate.quota;
 
    
 
 
    Value
    
diff --git a/files/en-us/web/api/storageestimate/usage/index.html b/files/en-us/web/api/storageestimate/usage/index.html
index cd530b82b4fc7a9..34b7c40bf494fa3 100644
--- a/files/en-us/web/api/storageestimate/usage/index.html
+++ b/files/en-us/web/api/storageestimate/usage/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    usage = StorageEstimate.usage;
+
    usage = StorageEstimate.usage;
 
    
 
 
    Value
    
diff --git a/files/en-us/web/api/storageevent/index.html b/files/en-us/web/api/storageevent/index.html
index 4ded33031c062df..8cff93e162b8a5f 100644
--- a/files/en-us/web/api/storageevent/index.html
+++ b/files/en-us/web/api/storageevent/index.html
@@ -17,7 +17,7 @@
 
 
    Method overview
    
 
-
    void initStorageEvent(
+
    void initStorageEvent(
   in DOMString type,
   in boolean canBubble,
   in boolean cancelable,
@@ -84,7 +84,7 @@ 
    initStorageEvent()
    
 
 
    Syntax
    
 
-
    storageEvent.initStorageEvent(type[, canBubble[, cancelable[, key[, oldValue[, newValue[, url[, storageArea]]]]]]])
+
    storageEvent.initStorageEvent(type[, canBubble[, cancelable[, key[, oldValue[, newValue[, url[, storageArea]]]]]]])
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/stylepropertymapreadonly/entries/index.html b/files/en-us/web/api/stylepropertymapreadonly/entries/index.html
index 31c0536760ba6be..e5abe3abf7e0986 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/entries/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/entries/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    StylePropertyMapReadOnly.entries()
    
+
    StylePropertyMapReadOnly.entries()
    
 
 
    Parameters
    
 
@@ -37,7 +37,7 @@ 
    Example
    
 
    Here shows an example of using StylePropertyMapReadOnly.entries() method
   on an elements computed styles.
    
 
-
    // grab a dom element
+
    // grab a dom element
 const buttonEl = document.querySelector('button');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/stylepropertymapreadonly/foreach/index.html b/files/en-us/web/api/stylepropertymapreadonly/foreach/index.html
index ac4e662c9de1c7b..ab46edd7e580a52 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/foreach/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/foreach/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    StylePropertyMapReadOnly.forEach(function callback(currentValue[, index[, array]]) {
+
    StylePropertyMapReadOnly.forEach(function callback(currentValue[, index[, array]]) {
     //your code
 }[, thisArg]);
    
 
@@ -52,7 +52,7 @@ 
    Example
    
 
    Here is an example of using forEach() on a retrieved
   {{domxref('Element.computedStyleMap()')}}.
    
 
-
    // get a button element
+
    // get a button element
 const buttonEl = document.querySelector('.example');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/stylepropertymapreadonly/get/index.html b/files/en-us/web/api/stylepropertymapreadonly/get/index.html
index 92e36e05abed101..1f3fe012775b3aa 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/get/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/get/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var declarationBlock = StylePropertyMapReadOnly.get(property)
    
+  class="brush: js">var declarationBlock = StylePropertyMapReadOnly.get(property)
    
 
 
    Parameters
    
 
@@ -38,14 +38,14 @@ 
    Examples
    
   paragraph in our HTML, and adding a definition list which we will populate with
   JavaScript:
    
 
-
    <p>
+
    <p>
    <a href="https://example.com">Link</a>
 </p>
 <dl id="results"></dl>
    
 
 
    We add a bit of CSS, including a custom property and an inheritable property:
    
 
-
    p {
+
    p {
   font-weight: bold;
 }
 a {
@@ -59,7 +59,7 @@ 
    Examples
    
   of interest and use the StylePropertyMapReadOnly's get() method to get only
   those values.
    
 
-
    // get the element
+
    // get the element
 const myElement = document.querySelector('a');
 
 // Retrieve all computed styles with computedStyleMap()
diff --git a/files/en-us/web/api/stylepropertymapreadonly/getall/index.html b/files/en-us/web/api/stylepropertymapreadonly/getall/index.html
index c632555f211cf8a..2ca30ade235eb7b 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/getall/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/getall/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    var cssStyleValues[] = StylePropertyMapReadOnly.getAll(property)
    
+  class="brush: js">var cssStyleValues[] = StylePropertyMapReadOnly.getAll(property)
    
 
 
    Parameters
    
 
@@ -40,7 +40,7 @@ 
    Example
    
   {{cssxref('background-image')}} property. An {{jsxref('Array')}} is returned which
   contains an item for each background image declared.
    
 
-
    // get a button element
+
    // get a button element
 const buttonEl = document.querySelector('button');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/stylepropertymapreadonly/has/index.html b/files/en-us/web/api/stylepropertymapreadonly/has/index.html
index 81b20e2f3b4cb07..bc568b439b3c964 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/has/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/has/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var boolean = StylePropertyMapReadOnly.has(property)
    
+  class="brush: js">var boolean = StylePropertyMapReadOnly.has(property)
    
 
 
    Parameters
    
 
@@ -38,7 +38,7 @@ 
    Example
    
 
    Here we use the has() method to see if the padding-top property is present
   within the button elements style attribute.
    
 
-
    // get the button element
+
    // get the button element
 const buttonEl = document.querySelector('.example');
 
 // find what's in the style attribute with attributeStyleMap and has()
diff --git a/files/en-us/web/api/stylepropertymapreadonly/index.html b/files/en-us/web/api/stylepropertymapreadonly/index.html
index 656b1e1b646412b..5db432063190213 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/index.html
@@ -44,7 +44,7 @@ 
    Examples
    
 
 
    We have to have an element to observe:
    
 
-
    <p>
+
    <p>
    This is a paragraph with some text. We can add some CSS, or not. The
    style map will include all the default and inherted CSS property values.
 </p>
@@ -52,7 +52,7 @@ 
    Examples
    
 
 
    We add a touch of CSS with a custom property to better demonstrate the output:
    
 
-
    p {
+
    p {
    --someVariable: 1.6em;
    --someOtherVariable: translateX(33vw);
    --anotherVariable: 42;
@@ -61,7 +61,7 @@ 
    Examples
    
 
 
    We add JavaScript to grab our paragraph and return back a definition list of all the default CSS property values using {{domxref('Element.computedStyleMap()')}}.
    
 
-
    // get the element
+
    // get the element
 const myElement = document.querySelector('p');
 
 // get the <dl> we'll be populating
diff --git a/files/en-us/web/api/stylepropertymapreadonly/keys/index.html b/files/en-us/web/api/stylepropertymapreadonly/keys/index.html
index e89e239af835b24..237301dff1ebe59 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/keys/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/keys/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    StylePropertyMapReadOnly.keys()
    
+
    StylePropertyMapReadOnly.keys()
    
 
 
    Parameters
    
 
@@ -34,7 +34,7 @@ 
    Example
    
 
    In this example we use the keys() method to be able to access the
   properties within our {{domxref('Element.computedStyleMap()')}}.
    
 
-
    // get a button element
+
    // get a button element
 const buttonEl = document.querySelector('button');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/stylepropertymapreadonly/size/index.html b/files/en-us/web/api/stylepropertymapreadonly/size/index.html
index 3744140b2088178..378e5216a3f2990 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/size/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/size/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    var size = StylePropertyMapReadOnly.size
    
+  class="brush: js">var size = StylePropertyMapReadOnly.size
    
 
 
    Value
    
 
@@ -31,7 +31,7 @@ 
    Example
    
 
    Here we use the size property to return the total entries within the button elements
   {{domxref('Element.computedStyleMap()','computedStyleMap')}}.
    
 
-
    // grab our element
+
    // grab our element
 const buttonEl = document.querySelector('button');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/stylepropertymapreadonly/values/index.html b/files/en-us/web/api/stylepropertymapreadonly/values/index.html
index 3961504447fbbee..ed34b282385dffd 100644
--- a/files/en-us/web/api/stylepropertymapreadonly/values/index.html
+++ b/files/en-us/web/api/stylepropertymapreadonly/values/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    StylePropertyMapReadOnly.values()
    
+
    StylePropertyMapReadOnly.values()
    
 
 
    Parameters
    
 
@@ -36,7 +36,7 @@ 
    Example
    
     href="/en-US/docs/Web/API/Element/computedStyleMap">Element.computedStyleMap().
 
    
 
-
    // get a button element
+
    // get a button element
 const buttonEl = document.querySelector('button');
 
 // we can retrieve all computed styles with `computedStyleMap`
diff --git a/files/en-us/web/api/wheelevent/deltamode/index.html b/files/en-us/web/api/wheelevent/deltamode/index.html
index dcb99f5284cceac..a02363ed638979c 100644
--- a/files/en-us/web/api/wheelevent/deltamode/index.html
+++ b/files/en-us/web/api/wheelevent/deltamode/index.html
@@ -43,7 +43,7 @@
 
    Syntax
    
 
 
    var unit = event.deltaMode;
    
+  class="brush: js">var unit = event.deltaMode;
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/wheelevent/deltax/index.html b/files/en-us/web/api/wheelevent/deltax/index.html
index 37ef4c5b6019637..4bb3c8696856959 100644
--- a/files/en-us/web/api/wheelevent/deltax/index.html
+++ b/files/en-us/web/api/wheelevent/deltax/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var dX = event.deltaX;
    
+  class="brush: js">var dX = event.deltaX;
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/wheelevent/deltay/index.html b/files/en-us/web/api/wheelevent/deltay/index.html
index 62d88ffdddeee93..1fa146779a90259 100644
--- a/files/en-us/web/api/wheelevent/deltay/index.html
+++ b/files/en-us/web/api/wheelevent/deltay/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    var dY = event.deltaY;
    
+  class="brush: js">var dY = event.deltaY;
    
 
 
    Example
    
 
diff --git a/files/en-us/web/api/wheelevent/deltaz/index.html b/files/en-us/web/api/wheelevent/deltaz/index.html
index 9eda9692188fdae..59d1347a6db3e4f 100644
--- a/files/en-us/web/api/wheelevent/deltaz/index.html
+++ b/files/en-us/web/api/wheelevent/deltaz/index.html
@@ -20,11 +20,11 @@
 
    Syntax
    
 
 
    var dZ = event.deltaZ;
    
+	class="brush: js">var dZ = event.deltaZ;
    
 
 
    Example
    
 
-
    var syntheticEvent = new WheelEvent("syntheticWheel", {"deltaZ": 4, "deltaMode": 0});
+
    var syntheticEvent = new WheelEvent("syntheticWheel", {"deltaZ": 4, "deltaMode": 0});
 
 console.log(syntheticEvent.deltaZ);
 
    
diff --git a/files/en-us/web/api/wheelevent/wheelevent/index.html b/files/en-us/web/api/wheelevent/wheelevent/index.html
index e9ce00bf0622d38..4afac4611b2c576 100644
--- a/files/en-us/web/api/wheelevent/wheelevent/index.html
+++ b/files/en-us/web/api/wheelevent/wheelevent/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    var wheelEvent = new WheelEvent(typeArg, wheelEventInit);
+
    var wheelEvent = new WheelEvent(typeArg, wheelEventInit);
 
    
 
 
    Properties
    
diff --git a/files/en-us/web/api/xrpose/emulatedposition/index.html b/files/en-us/web/api/xrpose/emulatedposition/index.html
index 4be7e35dd6f3e84..d82db4daa73ccbc 100644
--- a/files/en-us/web/api/xrpose/emulatedposition/index.html
+++ b/files/en-us/web/api/xrpose/emulatedposition/index.html
@@ -35,7 +35,7 @@
 
    Syntax
    
 
 
    let emulated = xrPose.emulatedPosition;
    
+  class="brush: js">let emulated = xrPose.emulatedPosition;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrpose/transform/index.html b/files/en-us/web/api/xrpose/transform/index.html
index 71c3a19f1cc58ea..2f058d8510a7c6c 100644
--- a/files/en-us/web/api/xrpose/transform/index.html
+++ b/files/en-us/web/api/xrpose/transform/index.html
@@ -28,7 +28,7 @@
 
    Syntax
    
 
 
    let poseTransform = xrPose.transform;
    
+  class="brush: js">let poseTransform = xrPose.transform;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrreferencespace/getoffsetreferencespace/index.html b/files/en-us/web/api/xrreferencespace/getoffsetreferencespace/index.html
index 40a2f3691ac272a..0c76a343af5daa3 100644
--- a/files/en-us/web/api/xrreferencespace/getoffsetreferencespace/index.html
+++ b/files/en-us/web/api/xrreferencespace/getoffsetreferencespace/index.html
@@ -48,7 +48,7 @@
 
    Syntax
    
 
 
    offsetReferenceSpace = xrReferenceSpace.getOffsetReferenceSpace(originOffset);
    
+  class="brush: js">offsetReferenceSpace = xrReferenceSpace.getOffsetReferenceSpace(originOffset);
    
 
 
    Parameters
    
 
@@ -83,7 +83,7 @@ 
    Teleporting or settin
 
    Upon first creating a scene, you may need to set the user's position within the 3D
   world. You can do that using getOffsetReferenceSpace().
    
 
-
    xrSession.requestReferenceSpace("local")
+
    xrSession.requestReferenceSpace("local")
 .then((refSpace) => {
   xrReferenceSpace = refSpace;
   xrReferenceSpace = xrReferenceSpace.getOffsetReferenceSpace(
@@ -117,7 +117,7 @@ 
    Implementing rotation base
   events. This prevents the right-clicks from causing the context menu from appearing in
   the browser.
    
 
-
    canvas.oncontextmenu = (event) => { event.preventDefault(); };
+
    canvas.oncontextmenu = (event) => { event.preventDefault(); };
 canvas.addEventListener("mousemove", (event) => {
   if (event.buttons & 2) {
     rotateViewBy(event.movementX, event.movementY);
@@ -131,7 +131,7 @@ 
    Implementing rotation base
   straight up and straight down. Each time this is called, the new offsets are used to
   update the current values of mousePitch and mouseYaw.
    
 
-
    let mouseYaw = 0.0;
+
    let mouseYaw = 0.0;
 let mousePitch = 0.0;
 const inverseOrientation = quat.create();
 const MOUSE_SPEED = 0.003;
@@ -150,7 +150,7 @@ 
    Implementing rotation base
 
    Finally, we need code that actually applies the computed yaw and pitch to the viewer's
   orientation. This function, applyMouseMovement(), handles that:
    
 
-
    function applyMouseMovement(refSpace) {
+
    function applyMouseMovement(refSpace) {
   if (!mouseYaw && !mousePitch) {
     return refSpace;
   }
diff --git a/files/en-us/web/api/xrreferencespace/onreset/index.html b/files/en-us/web/api/xrreferencespace/onreset/index.html
index a86cb548ca9c628..2e6709462a0828e 100644
--- a/files/en-us/web/api/xrreferencespace/onreset/index.html
+++ b/files/en-us/web/api/xrreferencespace/onreset/index.html
@@ -32,7 +32,7 @@
 
 
    Syntax
    
 
-
    xrReferenceSpace.onreset = eventHandler;
+
    xrReferenceSpace.onreset = eventHandler;
 
 eventHandler = xrReferenceSpace.onreset;
 
    
diff --git a/files/en-us/web/api/xrreferencespace/reset_event/index.html b/files/en-us/web/api/xrreferencespace/reset_event/index.html
index 90e7c0deeda5bf8..0c29784f4721ef2 100644
--- a/files/en-us/web/api/xrreferencespace/reset_event/index.html
+++ b/files/en-us/web/api/xrreferencespace/reset_event/index.html
@@ -83,14 +83,14 @@ 
    Examples
    
 
 
    To add a handler for the reset event, you can use either of two approaches. First, you can use the {{domxref("EventTarget.addEventListener", "addEventListener()")}} method:
    
 
-
    viewerRefSpace.addEventListener("reset", (event) => {
+
    viewerRefSpace.addEventListener("reset", (event) => {
   /* perform reset related tasks */
 });
 
    
 
 
    The second option is to set the XRReferenceSpace object's {{domxref("XRReferenceSpace.onreset", "onreset")}} event handler property:
    
 
-
    viewerRefSpace.onreset = (event) => {
+
    viewerRefSpace.onreset = (event) => {
   /* perform reset related tasks */
 };
 
    
diff --git a/files/en-us/web/api/xrsession/cancelanimationframe/index.html b/files/en-us/web/api/xrsession/cancelanimationframe/index.html
index 620a04f0fd4136c..f50a4c97fe91287 100644
--- a/files/en-us/web/api/xrsession/cancelanimationframe/index.html
+++ b/files/en-us/web/api/xrsession/cancelanimationframe/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    xrSession.cancelAnimationFrame(handle);
+
    xrSession.cancelAnimationFrame(handle);
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/xrsession/end/index.html b/files/en-us/web/api/xrsession/end/index.html
index 1c4e4a10c8c2daa..43f6f6d0a7ed833 100644
--- a/files/en-us/web/api/xrsession/end/index.html
+++ b/files/en-us/web/api/xrsession/end/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    xrSession.end();
+
    xrSession.end();
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/xrsession/environmentblendmode/index.html b/files/en-us/web/api/xrsession/environmentblendmode/index.html
index 97a69882a4f526e..30b8a0af4d17d82 100644
--- a/files/en-us/web/api/xrsession/environmentblendmode/index.html
+++ b/files/en-us/web/api/xrsession/environmentblendmode/index.html
@@ -38,7 +38,7 @@
 
    Syntax
    
 
 
    blendMode = xrSession.environmentBlendMode;
    
+  class="brush: js">blendMode = xrSession.environmentBlendMode;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/inputsources/index.html b/files/en-us/web/api/xrsession/inputsources/index.html
index 5bc60b42d2a783f..829359e95481ede 100644
--- a/files/en-us/web/api/xrsession/inputsources/index.html
+++ b/files/en-us/web/api/xrsession/inputsources/index.html
@@ -33,7 +33,7 @@
 
    Syntax
    
 
 
    inputSources = xrSession.inputSources;
    
+  class="brush: js">inputSources = xrSession.inputSources;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/onend/index.html b/files/en-us/web/api/xrsession/onend/index.html
index ab945dbd2edbaa9..41c219cf5c2b2f2 100644
--- a/files/en-us/web/api/xrsession/onend/index.html
+++ b/files/en-us/web/api/xrsession/onend/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    XRSession.onend = function(event) { ... };
+
    XRSession.onend = function(event) { ... };
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/xrsession/onselect/index.html b/files/en-us/web/api/xrsession/onselect/index.html
index 33d5d195d384f23..d1b855ca11d482b 100644
--- a/files/en-us/web/api/xrsession/onselect/index.html
+++ b/files/en-us/web/api/xrsession/onselect/index.html
@@ -36,7 +36,7 @@
 
 
    Syntax
    
 
-
    xrSession.onselect = selectHandlerFunction;
+
    xrSession.onselect = selectHandlerFunction;
 
    
 
 
    Value
    
diff --git a/files/en-us/web/api/xrsession/onselectend/index.html b/files/en-us/web/api/xrsession/onselectend/index.html
index 978f46aaf73088f..8459f8d72400aba 100644
--- a/files/en-us/web/api/xrsession/onselectend/index.html
+++ b/files/en-us/web/api/xrsession/onselectend/index.html
@@ -29,7 +29,7 @@
 
 
    Syntax
    
 
-
    XRSession.onselectend = function(event) { ... }
+
    XRSession.onselectend = function(event) { ... }
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/xrsession/onselectstart/index.html b/files/en-us/web/api/xrsession/onselectstart/index.html
index 0562f61d42ab607..eea67bb7e88b4ec 100644
--- a/files/en-us/web/api/xrsession/onselectstart/index.html
+++ b/files/en-us/web/api/xrsession/onselectstart/index.html
@@ -31,7 +31,7 @@
 
 
    Syntax
    
 
-
    XRSession.onselectstart = function(event) { ... }
+
    XRSession.onselectstart = function(event) { ... }
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/xrsession/onsqueeze/index.html b/files/en-us/web/api/xrsession/onsqueeze/index.html
index 4eb4a61837b0d90..b0e7ef6f2da131c 100644
--- a/files/en-us/web/api/xrsession/onsqueeze/index.html
+++ b/files/en-us/web/api/xrsession/onsqueeze/index.html
@@ -36,7 +36,7 @@
 
    Syntax
    
 
 
    xrSession.onsqueeze = squeezeHandlerFunction;
    
+  class="brush: js">xrSession.onsqueeze = squeezeHandlerFunction;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/onsqueezeend/index.html b/files/en-us/web/api/xrsession/onsqueezeend/index.html
index 8361c2f4c4966a4..1a29bbf9c15a809 100644
--- a/files/en-us/web/api/xrsession/onsqueezeend/index.html
+++ b/files/en-us/web/api/xrsession/onsqueezeend/index.html
@@ -40,7 +40,7 @@
 
    Syntax
    
 
 
    xrSession.onsqueezeend = squeezeendHandlerFunction;
    
+  class="brush: js">xrSession.onsqueezeend = squeezeendHandlerFunction;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/onsqueezestart/index.html b/files/en-us/web/api/xrsession/onsqueezestart/index.html
index 6cda77d99d7dd62..ab8837d94d50e13 100644
--- a/files/en-us/web/api/xrsession/onsqueezestart/index.html
+++ b/files/en-us/web/api/xrsession/onsqueezestart/index.html
@@ -37,7 +37,7 @@
 
    Syntax
    
 
 
    xrSession.onsqueezestart = squeezestartHandlerFunction;
    
+  class="brush: js">xrSession.onsqueezestart = squeezestartHandlerFunction;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/onvisibilitychange/index.html b/files/en-us/web/api/xrsession/onvisibilitychange/index.html
index 31e014e10478f2a..eb2aa985f81939f 100644
--- a/files/en-us/web/api/xrsession/onvisibilitychange/index.html
+++ b/files/en-us/web/api/xrsession/onvisibilitychange/index.html
@@ -29,7 +29,7 @@
 
 
    Syntax
    
 
-
    XRSession.onvisibilitychange = function(event) { ... }
+
    XRSession.onvisibilitychange = function(event) { ... }
 
    
 
 
    Example
    
diff --git a/files/en-us/web/api/xrsession/renderstate/index.html b/files/en-us/web/api/xrsession/renderstate/index.html
index e1690a1a134dc89..a7a490ff5a28663 100644
--- a/files/en-us/web/api/xrsession/renderstate/index.html
+++ b/files/en-us/web/api/xrsession/renderstate/index.html
@@ -31,7 +31,7 @@
 
    Syntax
    
 
 
    var xrRenderState = XRSession.renderState;
    
+  class="brush: js">var xrRenderState = XRSession.renderState;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/api/xrsession/requestanimationframe/index.html b/files/en-us/web/api/xrsession/requestanimationframe/index.html
index dd46614db213888..e77aa61c2e41db9 100644
--- a/files/en-us/web/api/xrsession/requestanimationframe/index.html
+++ b/files/en-us/web/api/xrsession/requestanimationframe/index.html
@@ -43,7 +43,7 @@
 
 
    Syntax
    
 
-
    requestID = xrSession.requestAnimationFrame(animationFrameCallback);
+
    requestID = xrSession.requestAnimationFrame(animationFrameCallback);
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/api/xrsession/requestreferencespace/index.html b/files/en-us/web/api/xrsession/requestreferencespace/index.html
index 039bb51ddede9e6..4b8a62fac5ba181 100644
--- a/files/en-us/web/api/xrsession/requestreferencespace/index.html
+++ b/files/en-us/web/api/xrsession/requestreferencespace/index.html
@@ -30,7 +30,7 @@
 
    Syntax
    
 
 
    refSpacePromise = xrSession.requestReferenceSpace(referenceSpaceType);
    
+  class="brush: js">refSpacePromise = xrSession.requestReferenceSpace(referenceSpaceType);
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/xrsession/updaterenderstate/index.html b/files/en-us/web/api/xrsession/updaterenderstate/index.html
index 876ed3ce02add0f..ed65db83d93c01a 100644
--- a/files/en-us/web/api/xrsession/updaterenderstate/index.html
+++ b/files/en-us/web/api/xrsession/updaterenderstate/index.html
@@ -29,7 +29,7 @@
 
    Syntax
    
 
 
    xrSession.updateRenderState(newState)
    
+  class="brush: js">xrSession.updateRenderState(newState)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/api/xrsession/visibilitystate/index.html b/files/en-us/web/api/xrsession/visibilitystate/index.html
index a5652ef1e2e9bdb..079e4b461670967 100644
--- a/files/en-us/web/api/xrsession/visibilitystate/index.html
+++ b/files/en-us/web/api/xrsession/visibilitystate/index.html
@@ -30,7 +30,7 @@
 
    Syntax
    
 
 
    visibilityState = xrSession.visibilityState;
    
+  class="brush: js">visibilityState = xrSession.visibilityState;
    
 
 
    Value
    
 
diff --git a/files/en-us/web/javascript/a_re-introduction_to_javascript/index.html b/files/en-us/web/javascript/a_re-introduction_to_javascript/index.html
index 1bea7e37dc9b892..88ab003742858d9 100644
--- a/files/en-us/web/javascript/a_re-introduction_to_javascript/index.html
+++ b/files/en-us/web/javascript/a_re-introduction_to_javascript/index.html
@@ -63,33 +63,33 @@ 
    Numbers
    
 
 
    Numbers in JavaScript are "double-precision 64-bit format IEEE 754 values", according to the spec —  There's no such thing as an integer in JavaScript (except {{jsxref("BigInt")}}), so you have to be a little careful. See this example:
    
 
-
    console.log(3 / 2);             // 1.5, not 1
+
    console.log(3 / 2);             // 1.5, not 1
 console.log(Math.floor(3 / 2)); // 1
    
 
 
    So an apparent integer is in fact implicitly a float.
    
 
 
    Also, watch out for stuff like:
    
 
-
    0.1 + 0.2 == 0.30000000000000004;
+
    0.1 + 0.2 == 0.30000000000000004;
 
    
 
 
    In practice, integer values are treated as 32-bit ints, and some implementations even store it that way until they are asked to perform an instruction that's valid on a Number but not on a 32-bit integer. This can be important for bit-wise operations.
    
 
 
    The standard arithmetic operators are supported, including addition, subtraction, modulus (or remainder) arithmetic, and so forth. There's also a built-in object that we did not mention earlier called {{jsxref("Math")}} that provides advanced mathematical functions and constants:
    
 
-
    Math.sin(3.5);
+
    Math.sin(3.5);
 var circumference = 2 * Math.PI * r;
 
    
 
 
    You can convert a string to an integer using the built-in {{jsxref("Global_Objects/parseInt", "parseInt()")}} function. This takes the base for the conversion as an optional second argument, which you should always provide:
    
 
-
    parseInt('123', 10); // 123
+
    parseInt('123', 10); // 123
 parseInt('010', 10); // 10
 
    
 
 
    In older browsers, strings beginning with a "0" are assumed to be in octal (radix 8), but this hasn't been the case since 2013 or so. Unless you're certain of your string format, you can get surprising results on those older browsers:
    
 
-
    parseInt('010');  //  8
+
    parseInt('010');  //  8
 parseInt('0x10'); // 16
 
    
 
@@ -97,42 +97,42 @@ 
    Numbers
    
 
 
    If you want to convert a binary number to an integer, just change the base:
    
 
-
    parseInt('11', 2); // 3
+
    parseInt('11', 2); // 3
 
    
 
 
    Similarly, you can parse floating point numbers using the built-in {{jsxref("Global_Objects/parseFloat", "parseFloat()")}} function. Unlike its {{jsxref("Global_Objects/parseInt", "parseInt()")}} cousin, parseFloat() always uses base 10.
    
 
 
    You can also use the unary + operator to convert values to numbers:
    
 
-
    + '42';   // 42
+
    + '42';   // 42
 + '010';  // 10
 + '0x10'; // 16
 
    
 
 
    A special value called {{jsxref("NaN")}} (short for "Not a Number") is returned if the string is non-numeric:
    
 
-
    parseInt('hello', 10); // NaN
+
    parseInt('hello', 10); // NaN
 
    
 
 
    NaN is toxic: if you provide it as an operand to any mathematical operation, the result will also be NaN:
    
 
-
    NaN + 5; // NaN
+
    NaN + 5; // NaN
 
    
 
 
    You can test for NaN using the built-in {{jsxref("Global_Objects/isNaN", "isNaN()")}} function:
    
 
-
    isNaN(NaN); // true
+
    isNaN(NaN); // true
 
    
 
 
    JavaScript also has the special values {{jsxref("Infinity")}} and -Infinity:
    
 
-
     1 / 0; //  Infinity
+
     1 / 0; //  Infinity
 -1 / 0; // -Infinity
 
    
 
 
    You can test for Infinity, -Infinity and NaN values using the built-in {{jsxref("Global_Objects/isFinite", "isFinite()")}} function:
    
 
-
    isFinite(1 / 0); // false
+
    isFinite(1 / 0); // false
 isFinite(-Infinity); // false
 isFinite(NaN); // false
 
    
@@ -147,12 +147,12 @@ 
    Strings
    
 
 
    To find the length of a string (in code units), access its length property:
    
 
-
    'hello'.length; // 5
+
    'hello'.length; // 5
 
    
 
 
    There's our first brush with JavaScript objects! Did we mention that you can use strings like {{jsxref("Object", "objects", "", 1)}} too? They have {{jsxref("String", "methods", "#Methods", 1)}} as well that allow you to manipulate the string and access information about the string:
    
 
-
    'hello'.charAt(0); // "h"
+
    'hello'.charAt(0); // "h"
 'hello, world'.replace('world', 'mars'); // "hello, mars"
 'hello'.toUpperCase(); // "HELLO"
 
    
@@ -170,7 +170,7 @@ 
    Other types
    
 
 
    You can perform this conversion explicitly using the Boolean() function:
    
 
-
    Boolean('');  // false
+
    Boolean('');  // false
 Boolean(234); // true
 
    
 
@@ -184,13 +184,13 @@ 
    Variables
    
  
    
  let allows you to declare block-level variables. The declared variable is available from the block it is enclosed in.
    
 
-
    let a;
+
    let a;
 let name = 'Simon';
 
    
 
 
    The following is an example of scope with a variable declared with let:
    
 
-
    // myLetVariable is *not* visible out here
+
    // myLetVariable is *not* visible out here
 
 for (let myLetVariable = 0; myLetVariable < 5; myLetVariable++) {
   // myLetVariable is only visible in here
@@ -202,18 +202,18 @@ 
    Variables
    
 
 
    const allows you to declare variables whose values are never intended to change. The variable is available from the block it is declared in.
    
 
-
    const Pi = 3.14; // variable Pi is set
+
    const Pi = 3.14; // variable Pi is set
 Pi = 1; // will throw an error because you cannot change a constant variable.
    
 
 

    
  var is the most common declarative keyword. It does not have the restrictions that the other two keywords have. This is because it was traditionally the only way to declare a variable in JavaScript. A variable declared with the var keyword is available from the function it is declared in.
    
 
-
    var a;
+
    var a;
 var name = 'Simon';
    
 
 
    An example of scope with a variable declared with var:
    
 
-
    // myVarVariable *is* visible out here
+
    // myVarVariable *is* visible out here
 
 for (var myVarVariable = 0; myVarVariable < 5; myVarVariable++) {
   // myVarVariable is visible to the whole function
@@ -230,7 +230,7 @@ 
    Operators
    
 
 
    JavaScript's numeric operators are +, -, *, / and % which is the remainder operator (which is the same as modulo.) Values are assigned using =, and there are also compound assignment statements such as += and -=. These extend out to x = x operator y.
    
 
-
    x += 5;
+
    x += 5;
 x = x + 5;
 
    
 
@@ -238,12 +238,12 @@ 
    Operators
    
 
 
    The + operator also does string concatenation:
    
 
-
    'hello' + ' world'; // "hello world"
+
    'hello' + ' world'; // "hello world"
 
    
 
 
    If you add a string to a number (or other value) everything is converted into a string first. This might trip you up:
    
 
-
    '3' + 4 + 5;  // "345"
+
    '3' + 4 + 5;  // "345"
  3 + 4 + '5'; // "75"
 
    
 
@@ -251,13 +251,13 @@ 
    Operators
    
 
 
    Comparisons in JavaScript can be made using <, >, <= and >=. These work for both strings and numbers. Equality is a little less straightforward. The double-equals operator performs type coercion if you give it different types, with sometimes interesting results:
    
 
-
    123 == '123'; // true
+
    123 == '123'; // true
 1 == true; // true
 
    
 
 
    To avoid type coercion, use the triple-equals operator:
    
 
-
    123 === '123'; // false
+
    123 === '123'; // false
 1 === true;    // false
 
    
 
@@ -269,7 +269,7 @@ 
    Control structures
    
 
 
    JavaScript has a similar set of control structures to other languages in the C family. Conditional statements are supported by if and else; you can chain them together if you like:
    
 
-
    var name = 'kittens';
+
    var name = 'kittens';
 if (name == 'puppies') {
   name += ' woof';
 } else if (name == 'kittens') {
@@ -282,7 +282,7 @@ 
    Control structures
    
 
 
    JavaScript has while loops and do-while loops. The first is good for basic looping; the second for loops where you wish to ensure that the body of the loop is executed at least once:
    
 
-
    while (true) {
+
    while (true) {
   // an infinite loop!
 }
 
@@ -294,43 +294,43 @@ 
    Control structures
    
 
 
    JavaScript's for loop is the same as that in C and Java: it lets you provide the control information for your loop on a single line.
    
 
-
    for (var i = 0; i < 5; i++) {
+
    for (var i = 0; i < 5; i++) {
   // Will execute 5 times
 }
 
    
 
 
    JavaScript also contains two other prominent for loops: for...of
    
 
-
    for (let value of array) {
+
    for (let value of array) {
   // do something with value
 }
 
    
 
 
    and for...in:
    
 
-
    for (let property in object) {
+
    for (let property in object) {
   // do something with object property
 }
 
    
 
 
    The && and || operators use short-circuit logic, which means whether they will execute their second operand is dependent on the first. This is useful for checking for null objects before accessing their attributes:
    
 
-
    var name = o && o.getName();
+
    var name = o && o.getName();
 
    
 
 
    Or for caching values (when falsy values are invalid):
    
 
-
    var name = cachedName || (cachedName = getName());
+
    var name = cachedName || (cachedName = getName());
 
    
 
 
    JavaScript has a ternary operator for conditional expressions:
    
 
-
    var allowed = (age > 18) ? 'yes' : 'no';
+
    var allowed = (age > 18) ? 'yes' : 'no';
 
    
 
 
    The switch statement can be used for multiple branches based on a number or string:
    
 
-
    switch (action) {
+
    switch (action) {
   case 'draw':
     drawIt();
     break;
@@ -344,7 +344,7 @@ 
    Control structures
    
 
 
    If you don't add a break statement, execution will "fall through" to the next level. This is very rarely what you want — in fact it's worth specifically labeling deliberate fallthrough with a comment if you really meant it to aid debugging:
    
 
-
    switch (a) {
+
    switch (a) {
   case 1: // fallthrough
   case 2:
     eatIt();
@@ -356,7 +356,7 @@ 
    Control structures
    
 
 
    The default clause is optional. You can have expressions in both the switch part and the cases if you like; comparisons take place between the two using the === operator:
    
 
-
    switch (1 + 3) {
+
    switch (1 + 3) {
   case 2 + 2:
     yay();
     break;
@@ -383,19 +383,19 @@ 
    Objects
    
 
 
    There are two basic ways to create an empty object:
    
 
-
    var obj = new Object();
+
    var obj = new Object();
 
    
 
 
    And:
    
 
-
    var obj = {};
+
    var obj = {};
 
    
 
 
    These are semantically equivalent; the second is called object literal syntax and is more convenient. This syntax is also the core of JSON format and should be preferred at all times.
    
 
 
    Object literal syntax can be used to initialize an object in its entirety:
    
 
-
    var obj = {
+
    var obj = {
   name: 'Carrot',
   _for: 'Max', // 'for' is a reserved word, use '_for' instead.
   details: {
@@ -407,13 +407,13 @@ 
    Objects
    
 
 
    Attribute access can be chained together:
    
 
-
    obj.details.color; // orange
+
    obj.details.color; // orange
 obj['details']['size']; // 12
 
    
 
 
    The following example creates an object prototype(Person) and an instance of that prototype(you).
    
 
-
    function Person(name, age) {
+
    function Person(name, age) {
   this.name = name;
   this.age = age;
 }
@@ -426,14 +426,14 @@ 
    Objects
    
 
 
    Once created, an object's properties can again be accessed in one of two ways:
    
 
-
    // dot notation
+
    // dot notation
 obj.name = 'Simon';
 var name = obj.name;
 
    
 
 
    And...
    
 
-
    // bracket notation
+
    // bracket notation
 obj['name'] = 'Simon';
 var name = obj['name'];
 // can use a variable to define a key
@@ -443,7 +443,7 @@ 
    Objects
    
 
 
    These are also semantically equivalent. The second method has the advantage that the name of the property is provided as a string, which means it can be calculated at run-time. However, using this method prevents some JavaScript engine and minifier optimizations being applied. It can also be used to set and get properties with names that are reserved words:
    
 
-
    obj.for = 'Simon'; // Syntax error, because 'for' is a reserved word
+
    obj.for = 'Simon'; // Syntax error, because 'for' is a reserved word
 obj['for'] = 'Simon'; // works fine
 
    
 
@@ -463,7 +463,7 @@ 
    Arrays
    
 
 
    One way of creating arrays is as follows:
    
 
-
    var a = new Array();
+
    var a = new Array();
 a[0] = 'dog';
 a[1] = 'cat';
 a[2] = 'hen';
@@ -472,13 +472,13 @@ 
    Arrays
    
 
 
    A more convenient notation is to use an array literal:
    
 
-
    var a = ['dog', 'cat', 'hen'];
+
    var a = ['dog', 'cat', 'hen'];
 a.length; // 3
 
    
 
 
    Note that array.length isn't necessarily the number of items in the array. Consider the following:
    
 
-
    var a = ['dog', 'cat', 'hen'];
+
    var a = ['dog', 'cat', 'hen'];
 a[100] = 'fox';
 a.length; // 101
 
    
@@ -487,19 +487,19 @@ 
    Arrays
    
 
 
    If you query a non-existent array index, you'll get a value of undefined in return:
    
 
-
    typeof a[90]; // undefined
+
    typeof a[90]; // undefined
 
    
 
 
    If you take the above about [] and length into account, you can iterate over an array using the following for loop:
    
 
-
    for (var i = 0; i < a.length; i++) {
+
    for (var i = 0; i < a.length; i++) {
   // Do something with a[i]
 }
 
    
 
 
    ES2015 introduced the more concise for...of loop for iterable objects such as arrays:
    
 
-
    for (const currentValue of a) {
+
    for (const currentValue of a) {
   // Do something with currentValue
 }
    
 
@@ -507,14 +507,14 @@ 
    Arrays
    
 
 
    Another way of iterating over an array that was added with ECMAScript 5 is forEach():
    
 
-
    ['dog', 'cat', 'hen'].forEach(function(currentValue, index, array) {
+
    ['dog', 'cat', 'hen'].forEach(function(currentValue, index, array) {
   // Do something with currentValue or array[index]
 });
 
    
 
 
    If you want to append an item to an array do it like this:
    
 
-
    a.push(item);
    
+
    a.push(item);
    
 
 
    Arrays come with a number of methods. See also the full documentation for array methods.
    
 
@@ -581,7 +581,7 @@ 
    Functions
    
 
 
    Along with objects, functions are the core component in understanding JavaScript. The most basic function couldn't be much simpler:
    
 
-
    function add(x, y) {
+
    function add(x, y) {
   var total = x + y;
   return total;
 }
@@ -591,19 +591,19 @@ 
    Functions
    
 
 
    The named parameters turn out to be more like guidelines than anything else. You can call a function without passing the parameters it expects, in which case they will be set to undefined.
    
 
-
    add(); // NaN
+
    add(); // NaN
 // You can't perform addition on undefined
 
    
 
 
    You can also pass in more arguments than the function is expecting:
    
 
-
    add(2, 3, 4); // 5
+
    add(2, 3, 4); // 5
 // added the first two; 4 was ignored
 
    
 
 
    That may seem a little silly, but functions have access to an additional variable inside their body called arguments, which is an array-like object holding all of the values passed to the function. Let's re-write the add function to take as many values as we want:
    
 
-
    function add() {
+
    function add() {
   var sum = 0;
   for (var i = 0, j = arguments.length; i < j; i++) {
     sum += arguments[i];
@@ -616,7 +616,7 @@ 
    Functions
    
 
 
    That's really not any more useful than writing 2 + 3 + 4 + 5 though. Let's create an averaging function:
    
 
-
    function avg() {
+
    function avg() {
   var sum = 0;
   for (var i = 0, j = arguments.length; i < j; i++) {
     sum += arguments[i];
@@ -629,7 +629,7 @@ 
    Functions
    
 
 
    This is pretty useful, but it does seem a little verbose. To reduce this code a bit more we can look at substituting the use of the arguments array through Rest parameter syntax. In this way, we can pass in any number of arguments into the function while keeping our code minimal. The rest parameter operator is used in function parameter lists with the format: ...variable and it will include within that variable the entire list of uncaptured arguments that the function was called with. We will also replace the for loop with a for...of loop to return the values within our variable.
    
 
-
    function avg(...args) {
+
    function avg(...args) {
   var sum = 0;
   for (let value of args) {
     sum += value;
@@ -644,7 +644,7 @@ 
    Functions
    
 
    
 It is important to note that wherever the rest parameter operator is placed in a function declaration it will store all arguments after its declaration, but not before. i.e. function avg(firstValue, ...args) will store the first value passed into the function in the firstValue variable and the remaining arguments in args. That's another useful language feature but it does lead us to a new problem. The avg() function takes a comma-separated list of arguments — but what if you want to find the average of an array? You could just rewrite the function as follows:
 
-
    function avgArray(arr) {
+
    function avgArray(arr) {
   var sum = 0;
   for (var i = 0, j = arr.length; i < j; i++) {
     sum += arr[i];
@@ -657,7 +657,7 @@ 
    Functions
    
 
 
    But it would be nice to be able to reuse the function that we've already created. Luckily, JavaScript lets you call a function with an arbitrary array of arguments, using the {{jsxref("Function.apply", "apply()")}} method of any function object.
    
 
-
    avg.apply(null, [2, 3, 4, 5]); // 3.5
+
    avg.apply(null, [2, 3, 4, 5]); // 3.5
 
    
 
 
    The second argument to apply() is the array to use as arguments; the first will be discussed later on. This emphasizes the fact that functions are objects too.
    
@@ -670,7 +670,7 @@ 
    Functions
    
 
 
    JavaScript lets you create anonymous functions.
    
 
-
    var avg = function() {
+
    var avg = function() {
   var sum = 0;
   for (var i = 0, j = arguments.length; i < j; i++) {
     sum += arguments[i];
@@ -681,7 +681,7 @@ 
    Functions
    
 
 
    This is semantically equivalent to the function avg() form. It's extremely powerful, as it lets you put a full function definition anywhere that you would normally put an expression. This enables all sorts of clever tricks. Here's a way of "hiding" some local variables — like block scope in C:
    
 
-
    var a = 1;
+
    var a = 1;
 var b = 2;
 
 (function() {
@@ -695,7 +695,7 @@ 
    Functions
    
 
 
    JavaScript allows you to call functions recursively. This is particularly useful for dealing with tree structures, such as those found in the browser DOM.
    
 
-
    function countChars(elm) {
+
    function countChars(elm) {
   if (elm.nodeType == 3) { // TEXT_NODE
     return elm.nodeValue.length;
   }
@@ -709,7 +709,7 @@ 
    Functions
    
 
 
    This highlights a potential problem with anonymous functions: how do you call them recursively if they don't have a name? JavaScript lets you name function expressions for this. You can use named IIFEs (Immediately Invoked Function Expressions) as shown below:
    
 
-
    var charsInBody = (function counter(elm) {
+
    var charsInBody = (function counter(elm) {
   if (elm.nodeType == 3) { // TEXT_NODE
     return elm.nodeValue.length;
   }
@@ -731,7 +731,7 @@ 
    Custom objects
    
 
 
    In classic Object Oriented Programming, objects are collections of data and methods that operate on that data. JavaScript is a prototype-based language that contains no class statement, as you'd find in C++ or Java (this is sometimes confusing for programmers accustomed to languages with a class statement). Instead, JavaScript uses functions as classes. Let's consider a person object with first and last name fields. There are two ways in which the name might be displayed: as "first last" or as "last, first". Using the functions and objects that we've discussed previously, we could display the data like this:
    
 
-
    function makePerson(first, last) {
+
    function makePerson(first, last) {
   return {
     first: first,
     last: last
@@ -751,7 +751,7 @@ 
    Custom objects
    
 
 
    This works, but it's pretty ugly. You end up with dozens of functions in your global namespace. What we really need is a way to attach a function to an object. Since functions are objects, this is easy:
    
 
-
    function makePerson(first, last) {
+
    function makePerson(first, last) {
   return {
     first: first,
     last: last,
@@ -773,7 +773,7 @@ 
    Custom objects
    
 
 
    Note that this is a frequent cause of mistakes. For example:
    
 
-
    var s = makePerson('Simon', 'Willison');
+
    var s = makePerson('Simon', 'Willison');
 var fullName = s.fullName;
 fullName(); // undefined undefined
 
    
@@ -782,7 +782,7 @@ 
    Custom objects
    
 
 
    We can take advantage of the this keyword to improve our makePerson function:
    
 
-
    function Person(first, last) {
+
    function Person(first, last) {
   this.first = first;
   this.last = last;
   this.fullName = function() {
@@ -801,7 +801,7 @@ 
    Custom objects
    
 
 
    Our person objects are getting better, but there are still some ugly edges to them. Every time we create a person object we are creating two brand new function objects within it — wouldn't it be better if this code was shared?
    
 
-
    function personFullName() {
+
    function personFullName() {
   return this.first + ' ' + this.last;
 }
 function personFullNameReversed() {
@@ -817,7 +817,7 @@ 
    Custom objects
    
 
 
    That's better: we are creating the method functions only once, and assigning references to them inside the constructor. Can we do any better than that? The answer is yes:
    
 
-
    function Person(first, last) {
+
    function Person(first, last) {
   this.first = first;
   this.last = last;
 }
@@ -833,7 +833,7 @@ 
    Custom objects
    
 
 
    This is an incredibly powerful tool. JavaScript lets you modify something's prototype at any time in your program, which means you can add extra methods to existing objects at runtime:
    
 
-
    var s = new Person('Simon', 'Willison');
+
    var s = new Person('Simon', 'Willison');
 s.firstNameCaps(); // TypeError on line 1: s.firstNameCaps is not a function
 
 Person.prototype.firstNameCaps = function() {
@@ -844,7 +844,7 @@ 
    Custom objects
    
 
 
    Interestingly, you can also add things to the prototype of built-in JavaScript objects. Let's add a method to String that returns that string in reverse:
    
 
-
    var s = 'Simon';
+
    var s = 'Simon';
 s.reversed(); // TypeError on line 1: s.reversed is not a function
 
 String.prototype.reversed = function() {
@@ -860,12 +860,12 @@ 
    Custom objects
    
 
 
    Our new method even works on string literals!
    
 
-
    'This can now be reversed'.reversed(); // desrever eb won nac sihT
+
    'This can now be reversed'.reversed(); // desrever eb won nac sihT
 
    
 
 
    As mentioned before, the prototype forms part of a chain. The root of that chain is Object.prototype, whose methods include toString() — it is this method that is called when you try to represent an object as a string. This is useful for debugging our Person objects:
    
 
-
    var s = new Person('Simon', 'Willison');
+
    var s = new Person('Simon', 'Willison');
 s.toString(); // [object Object]
 
 Person.prototype.toString = function() {
@@ -877,7 +877,7 @@ 
    Custom objects
    
 
 
    Remember how avg.apply() had a null first argument? We can revisit that now. The first argument to apply() is the object that should be treated as 'this'. For example, here's a trivial implementation of new:
    
 
-
    function trivialNew(constructor, ...args) {
+
    function trivialNew(constructor, ...args) {
   var o = {}; // Create an object
   constructor.apply(o, args);
   return o;
@@ -888,15 +888,15 @@ 
    Custom objects
    
 
 
    Calling
    
 
-
    var bill = trivialNew(Person, 'William', 'Orange');
    
+
    var bill = trivialNew(Person, 'William', 'Orange');
    
 
 
    is therefore almost equivalent to
    
 
-
    var bill = new Person('William', 'Orange');
    
+
    var bill = new Person('William', 'Orange');
    
 
 
    apply() has a sister function named call, which again lets you set this but takes an expanded argument list as opposed to an array.
    
 
-
    function lastNameCaps() {
+
    function lastNameCaps() {
   return this.last.toUpperCase();
 }
 var s = new Person('Simon', 'Willison');
@@ -910,7 +910,7 @@ 
    Inner functions
    
 
 
    JavaScript function declarations are allowed inside other functions. We've seen this once before, with an earlier makePerson() function. An important detail of nested functions in JavaScript is that they can access variables in their parent function's scope:
    
 
-
    function parentFunc() {
+
    function parentFunc() {
   var a = 1;
 
   function nestedFunc() {
@@ -929,7 +929,7 @@ 
    Closures
    
 
 
    This leads us to one of the most powerful abstractions that JavaScript has to offer — but also the most potentially confusing. What does this do?
    
 
-
    function makeAdder(a) {
+
    function makeAdder(a) {
   return function(b) {
     return a + b;
   };
@@ -944,7 +944,7 @@ 
    Closures
    
 
 
    What's happening here is pretty much the same as was happening with the inner functions earlier on: a function defined inside another function has access to the outer function's variables. The only difference here is that the outer function has returned, and hence common sense would seem to dictate that its local variables no longer exist. But they do still exist — otherwise, the adder functions would be unable to work. What's more, there are two different "copies" of makeAdder()'s local variables — one in which a is 5 and the other one where a is 20. So the result of that function calls is as follows:
    
 
-
    add5(6); // returns 11
+
    add5(6); // returns 11
 add20(7); // returns 27
 
    
 
diff --git a/files/en-us/web/javascript/closures/index.html b/files/en-us/web/javascript/closures/index.html
index 4c5691a3810cb8e..9da4b52045d683f 100644
--- a/files/en-us/web/javascript/closures/index.html
+++ b/files/en-us/web/javascript/closures/index.html
@@ -17,7 +17,7 @@ 
    Lexical scoping
    
 
 
    Consider the following example code:
    
 
-
    function init() {
+
    function init() {
   var name = 'Mozilla'; // name is a local variable created by init
   function displayName() { // displayName() is the inner function, a closure
     alert(name); // use variable declared in the parent function
@@ -34,7 +34,7 @@ 
    Closure
    
 
 
    Consider the following code example:
    
 
-
    function makeFunc() {
+
    function makeFunc() {
   var name = 'Mozilla';
   function displayName() {
     alert(name);
@@ -54,7 +54,7 @@ 
    Closure
    
 
 
    Here's a slightly more interesting example—a makeAdder function:
    
 
-
    function makeAdder(x) {
+
    function makeAdder(x) {
   return function(y) {
     return x + y;
   };
@@ -83,7 +83,7 @@ 
    Practical closures
    
 
 
    For instance, suppose we want to add buttons to a page to adjust the text size. One way of doing this is to specify the font-size of the body element (in pixels), and then set the size of the other elements on the page (such as headers) using the relative em unit:
    
 
-
    body {
+
    body {
   font-family: Helvetica, Arial, sans-serif;
   font-size: 12px;
 }
@@ -101,7 +101,7 @@ 
    Practical closures
    
 
 
    Here's the JavaScript:
    
 
-
    function makeSizer(size) {
+
    function makeSizer(size) {
   return function() {
     document.body.style.fontSize = size + 'px';
   };
@@ -114,12 +114,12 @@ 
    Practical closures
    
 
 
    size12, size14, and size16 are now functions that resize the body text to 12, 14, and 16 pixels, respectively. You can attach them to buttons (in this case hyperlinks) as demonstrated in the following code example.
    
 
-
    document.getElementById('size-12').onclick = size12;
+
    document.getElementById('size-12').onclick = size12;
 document.getElementById('size-14').onclick = size14;
 document.getElementById('size-16').onclick = size16;
 
    
 
-
    <a href="#" id="size-12">12</a>
+
    <a href="#" id="size-12">12</a>
 <a href="#" id="size-14">14</a>
 <a href="#" id="size-16">16</a>
 
    
@@ -134,7 +134,7 @@ 
    Emulating private methods with
 
 
    The following code illustrates how to use closures to define public functions that can access private functions and variables. Note that these closures follow the Module Design Pattern.
    
 
-
    var counter = (function() {
+
    var counter = (function() {
   var privateCounter = 0;
   function changeBy(val) {
     privateCounter += val;
@@ -171,7 +171,7 @@ 
    Emulating private methods with
 
 
    Those three public functions are closures that share the same lexical environment. Thanks to JavaScript's lexical scoping, they each have access to the privateCounter variable and the changeBy function.
    
 
-
    var makeCounter = function() {
+
    var makeCounter = function() {
   var privateCounter = 0;
   function changeBy(val) {
     privateCounter += val;
@@ -223,7 +223,7 @@ 
    Closure Scope Chain
    
 
 
    A common mistake is not realizing that in the case where the outer function is itself a nested function, access to the outer function's scope includes the enclosing scope of the outer function—effectively creating a chain of function scopes. To demonstrate, consider the following example code.
    
 
-
    // global scope
+
    // global scope
 var e = 10;
 function sum(a){
   return function(b){
@@ -268,13 +268,13 @@ 
    Creating closures in loops:
 
 
    Prior to the introduction of the let keyword in ECMAScript 2015, a common problem with closures occurred when you created them inside a loop. To demonstrate, consider the following example code.
    
 
-
    <p id="help">Helpful notes will appear here</p>
+
    <p id="help">Helpful notes will appear here</p>
 <p>E-mail: <input type="text" id="email" name="email"></p>
 <p>Name: <input type="text" id="name" name="name"></p>
 <p>Age: <input type="text" id="age" name="age"></p>
 
    
 
-
    function showHelp(help) {
+
    function showHelp(help) {
   document.getElementById('help').textContent = help;
 }
 
@@ -306,7 +306,7 @@ 
    Creating closures in loops:
 
 
    One solution in this case is to use more closures: in particular, to use a function factory as described earlier:
    
 
-
    function showHelp(help) {
+
    function showHelp(help) {
   document.getElementById('help').textContent = help;
 }
 
@@ -338,7 +338,7 @@ 
    Creating closures in loops:
 
 
    One other way to write the above using anonymous closures is:
    
 
-
    function showHelp(help) {
+
    function showHelp(help) {
   document.getElementById('help').textContent = help;
 }
 
@@ -363,7 +363,7 @@ 
    Creating closures in loops:
 
 
    If you don't want to use more closures, you can use the let keyword introduced in ES2015 :
    
 
-
    function showHelp(help) {
+
    function showHelp(help) {
   document.getElementById('help').textContent = help;
 }
 
@@ -388,7 +388,7 @@ 
    Creating closures in loops:
 
 
    Another alternative could be to use forEach() to iterate over the helpText array and attach a listener to each <input>, as shown:
    
 
-
    function showHelp(help) {
+
    function showHelp(help) {
   document.getElementById('help').textContent = help;
 }
 
@@ -416,7 +416,7 @@ 
    Performance considerations
    
 
 
    Consider the following case:
    
 
-
    function MyObject(name, message) {
+
    function MyObject(name, message) {
   this.name = name.toString();
   this.message = message.toString();
   this.getName = function() {
@@ -431,7 +431,7 @@ 
    Performance considerations
    
 
 
    Because the previous code does not take advantage of the benefits of using closures in this particular instance, we could instead rewrite it to avoid using closure as follows:
    
 
-
    function MyObject(name, message) {
+
    function MyObject(name, message) {
   this.name = name.toString();
   this.message = message.toString();
 }
@@ -447,7 +447,7 @@ 
    Performance considerations
    
 
 
    However, redefining the prototype is not recommended. The following example instead appends to the existing prototype:
    
 
-
    function MyObject(name, message) {
+
    function MyObject(name, message) {
   this.name = name.toString();
   this.message = message.toString();
 }
diff --git a/files/en-us/web/javascript/data_structures/index.html b/files/en-us/web/javascript/data_structures/index.html
index c30f8722842da17..c226bd759fd8bb2 100644
--- a/files/en-us/web/javascript/data_structures/index.html
+++ b/files/en-us/web/javascript/data_structures/index.html
@@ -15,7 +15,7 @@ 
    Dynamic typing
    
 
 
    JavaScript is a loosely typed and dynamic language. Variables in JavaScript are not directly associated with any particular value type, and any variable can be assigned (and re-assigned) values of all types:
    
 
-
    let foo = 42;    // foo is now a number
+
    let foo = 42;    // foo is now a number
 foo     = 'bar'; // foo is now a string
 foo     = true;  // foo is now a boolean
 
    
@@ -87,7 +87,7 @@ 
    Number type
    
 
 
    In the praxis, this has almost no impact. For example, +0 === -0 is true. However, you are able to notice this when you divide by zero:
    
 
-
    > 42 / +0
+
    > 42 / +0
 Infinity
 > 42 / -0
 -Infinity
@@ -111,7 +111,7 @@ 
    BigInt type
    
 
 
    This example demonstrates, where incrementing the {{jsxref("Number.MAX_SAFE_INTEGER")}} returns the expected result:
    
 
-
    > const x = 2n ** 53n;
+
    > const x = 2n ** 53n;
 9007199254740992n
 > const y = x + 1n;
 9007199254740993n
diff --git a/files/en-us/web/javascript/equality_comparisons_and_sameness/index.html b/files/en-us/web/javascript/equality_comparisons_and_sameness/index.html
index c95a35034548b93..deb72033bc02848 100644
--- a/files/en-us/web/javascript/equality_comparisons_and_sameness/index.html
+++ b/files/en-us/web/javascript/equality_comparisons_and_sameness/index.html
@@ -46,7 +46,7 @@ 
    Strict equality using ===
    
 
 
    Strict equality compares two values for equality. Neither value is implicitly converted to some other value before being compared. If the values have different types, the values are considered unequal. If the values have the same type, are not numbers, and have the same value, they're considered equal. Finally, if both values are numbers, they're considered equal if they're both not NaN and are the same value, or if one is +0 and one is -0.
    
 
-
    var num = 0;
+
    var num = 0;
 var obj = new String('0');
 var str = '0';
 
@@ -150,7 +150,7 @@ 
    Loose equality using ==
    
 
 
    Traditionally, and according to ECMAScript, all objects are loosely unequal to undefined and null. But most browsers permit a very narrow class of objects (specifically, the document.all object for any page), in some contexts, to act as if they emulate the value undefined. Loose equality is one such context: null == A and undefined == A evaluate to true if, and only if, A is an object that emulates undefined. In all other cases an object is never loosely equal to undefined or null.
    
 
-
    var num = 0;
+
    var num = 0;
 var obj = new String('0');
 var str = '0';
 
@@ -174,7 +174,7 @@ 
    Same-value equality
    
 
 
    Same-value equality addresses a final use case: determining whether two values are functionally identical in all contexts. (This use case demonstrates an instance of the Liskov substitution principle.) One instance occurs when an attempt is made to mutate an immutable property:
    
 
-
    // Add an immutable NEGATIVE_ZERO property to the Number constructor.
+
    // Add an immutable NEGATIVE_ZERO property to the Number constructor.
 Object.defineProperty(Number, 'NEGATIVE_ZERO',
                       { value: -0, writable: false, configurable: false, enumerable: false });
 
@@ -436,7 +436,7 @@ 
    When to use {{jsxref("
 
    
  
    - (unary negation)
    
  
    
- 
    let stoppingForce = obj.mass * -obj.velocity;
    
+ 
    let stoppingForce = obj.mass * -obj.velocity;
    
 
  
    If obj.velocity is 0 (or computes to 0), a -0 is introduced at that place and propagates out into stoppingForce.
    
  
    
@@ -467,7 +467,7 @@ 
    Caveat: {{jsxref("Object.is")}} and NaN<
 
 
    The {{jsxref("Object.is")}} specification treats all instances of {{jsxref("NaN")}} as the same object. However, since typed arrays are available, we can have distinct instances, which don't behave identically in all contexts. For example:
    
 
-
    var f2b = x => new Uint8Array(new Float64Array([x]).buffer);
+
    var f2b = x => new Uint8Array(new Float64Array([x]).buffer);
 var b2f = x => new Float64Array(x.buffer)[0];
 var n = f2b(NaN);
 n[0] = 1;
diff --git a/files/en-us/web/javascript/guide/control_flow_and_error_handling/index.html b/files/en-us/web/javascript/guide/control_flow_and_error_handling/index.html
index ea8f307db3254f4..53a7f272d8a0905 100644
--- a/files/en-us/web/javascript/guide/control_flow_and_error_handling/index.html
+++ b/files/en-us/web/javascript/guide/control_flow_and_error_handling/index.html
@@ -34,7 +34,7 @@ 
    Block statement
    
 
    The most basic statement is a block statement, which is used to group
   statements. The block is delimited by a pair of curly brackets:
    
 
-
    {
+
    {
   statement_1;
   statement_2;
   ⋮
@@ -95,7 +95,7 @@ 
    if...else statement
    
 
 
    An if statement looks like this:
    
 
-
    if (condition) {
+
    if (condition) {
   statement_1;
 } else {
   statement_2;
@@ -115,7 +115,7 @@ 
    if...else statement
    
 
    You can also compound the statements using else if to have multiple
   conditions tested in sequence, as follows:
    
 
-
    if (condition_1) {
+
    if (condition_1) {
   statement_1;
 } else if (condition_2) {
   statement_2;
@@ -135,7 +135,7 @@ 
    Best practice
    
 
    In general, it's good practice to always use block statements—especially when
   nesting if statements:
    
 
-
    if (condition) {
+
    if (condition) {
   statement_1_runs_if_condition_is_true;
   statement_2_runs_if_condition_is_true;
 } else {
@@ -219,7 +219,7 @@ 
    switch statement
    
 
 
    A switch statement looks like this:
    
 
-
    switch (expression) {
+
    switch (expression) {
   case label_1:
     statements_1
     [break;]
@@ -327,7 +327,7 @@ 
    throw statement
    
 
    Use the throw statement to throw an exception. A throw
   statement specifies the value to be thrown:
    
 
-
    throw expression;
+
    throw expression;
 
    
 
 
    You may throw any expression, not just expressions of a specific type. The following
@@ -410,7 +410,7 @@ 
    The catch block
    
 
    You can use a catch block to handle all exceptions that may be generated
   in the try block.
    
 
-
    catch (catchID) {
+
    catch (catchID) {
   statements
 }
 
    
diff --git a/files/en-us/web/javascript/guide/expressions_and_operators/index.html b/files/en-us/web/javascript/guide/expressions_and_operators/index.html
index e5e77750f3ce848..145d64589af016a 100644
--- a/files/en-us/web/javascript/guide/expressions_and_operators/index.html
+++ b/files/en-us/web/javascript/guide/expressions_and_operators/index.html
@@ -41,19 +41,19 @@ 
    Operators
    
   ternary operator, the conditional operator. A binary operator requires two operands, one
   before the operator and one after the operator:
    
 
-
    operand1 operator operand2
+
    operand1 operator operand2
 
    
 
 
    For example, 3+4 or x*y.
    
 
 
    A unary operator requires a single operand, either before or after the operator:
    
 
-
    operator operand
+
    operator operand
 
    
 
 
    or
    
 
-
    operand operator
+
    operand operator
 
    
 
 
    For example, x++ or ++x.
    
@@ -198,7 +198,7 @@ 
    Return value and chaining
    
 
    Like most expressions, assignments like x = y have a return value. It can
   be retrieved by e.g. assigning the expression or logging it:
    
 
-
    const z = (x = y); // Or equivalently: const z = x = y;
+
    const z = (x = y); // Or equivalently: const z = x = y;
 
 console.log(z); // Log the return value of the assignment x = y.
 console.log(x = y); // Or log the return value directly.
@@ -235,7 +235,7 @@ 
    Destructuring
    
   data from arrays or objects using a syntax that mirrors the construction of array and
   object literals.
    
 
-
    var foo = ['one', 'two', 'three'];
+
    var foo = ['one', 'two', 'three'];
 
 // without destructuring
 var one   = foo[0];
@@ -258,7 +258,7 @@ 
    Comparison operators
    
   not attempt to convert the operands to compatible types before checking equality. The
   following table describes the comparison operators in terms of this sample code:
    
 
-
    var var1 = 3;
+
    var var1 = 3;
 var var2 = 4;
 
    
 
@@ -363,7 +363,7 @@ 
    Arithmetic operators
    
   other programming languages when used with floating point numbers (in particular, note
   that division by zero produces {{jsxref("Infinity")}}). For example:
    
 
-
    1 / 2; // 0.5
+
    1 / 2; // 0.5
 1 / 2 == 1.0 / 2.0; // this is true
 
    
 
@@ -521,7 +521,7 @@ 
    Bitwise logical operators
    
     bits (zeros and ones). Numbers with more than 32 bits get their most significant bits
     discarded. For example, the following integer with more than 32 bits will be converted
     to a 32 bit integer:
-    
    Before: 1110 0110 1111 1010 0000 0000 0000 0110 0000 0000 0001
+    
    Before: 1110 0110 1111 1010 0000 0000 0000 0110 0000 0000 0001
 After:               1010 0000 0000 0000 0110 0000 0000 0001
    
   
   
  • Each bit in the first operand is paired with the corresponding bit in the second
@@ -687,7 +687,7 @@ 
    Logical operators
    
 
    The following code shows examples of the && (logical AND)
   operator.
    
 
-
    var a1 =  true && true;     // t && t returns true
+
    var a1 =  true && true;     // t && t returns true
 var a2 =  true && false;    // t && f returns false
 var a3 = false && true;     // f && t returns false
 var a4 = false && (3 == 4); // f && f returns false
@@ -698,7 +698,7 @@ 
    Logical operators
    
 
 
    The following code shows examples of the || (logical OR) operator.
    
 
-
    var o1 =  true || true;     // t || t returns true
+
    var o1 =  true || true;     // t || t returns true
 var o2 = false || true;     // f || t returns true
 var o3 =  true || false;    // t || f returns true
 var o4 = false || (3 == 4); // f || f returns false
@@ -709,7 +709,7 @@ 
    Logical operators
    
 
 
    The following code shows examples of the ! (logical NOT) operator.
    
 
-
    var n1 = !true;  // !t returns false
+
    var n1 = !true;  // !t returns false
 var n2 = !false; // !f returns true
 var n3 = !'Cat'; // !t returns false
 
    
@@ -750,13 +750,13 @@ 
    String operators
    
 
    For example,
    
 
 
    console.log('my ' + 'string'); // console logs the string "my string".
    
+  class="brush: js">console.log('my ' + 'string'); // console logs the string "my string".
    
 
 
    The shorthand assignment operator += can also be used to concatenate strings.
    
 
 
    For example,
    
 
-
    var mystring = 'alpha';
+
    var mystring = 'alpha';
 mystring += 'bet'; // evaluates to "alphabet" and assigns this value to mystring.
    
 
 
    Conditional (ternary) operator
    
@@ -766,7 +766,7 @@ 
    Conditional (ternary) operator
    
     operator is the only JavaScript operator that takes three operands. The operator
   can have one of two values based on a condition. The syntax is:
    
 
-
    condition ? val1 : val2
+
    condition ? val1 : val2
 
    
 
 
    If condition is true, the operator has the value of val1.
@@ -775,7 +775,7 @@ 
    Conditional (ternary) operator
    
 
 
    For example,
    
 
-
    var status = (age >= 18) ? 'adult' : 'minor';
+
    var status = (age >= 18) ? 'adult' : 'minor';
 
    
 
 
    This statement assigns the value "adult" to the variable status if
@@ -795,7 +795,7 @@ 
    Comma operator
    
   following code uses the comma operator to update two variables at once. The code prints
   the values of the diagonal elements in the array:
    
 
-
    var x = [0,1,2,3,4,5,6,7,8,9]
+
    var x = [0,1,2,3,4,5,6,7,8,9]
 var a = [x, x, x, x, x];
 
 for (var i = 0, j = 9; i <= j; i++, j--)
@@ -813,7 +813,7 @@ 
    delete
    
   delete
   operator deletes an object's property. The syntax is:
    
 
-
    delete object.property;
+
    delete object.property;
 delete object[propertyKey];
 delete objectName[index];
 delete property; // legal only within a with statement
@@ -833,7 +833,7 @@ 
    delete
    
   delete operator returns true if the operation is possible; it
   returns false if the operation is not possible.
    
 
-
    x = 42; // implicitly creates window.x
+
    x = 42; // implicitly creates window.x
 var y = 43;
 var myobj = {h: 4}; // create object with property h
 
@@ -859,7 +859,7 @@ 
    typeof
    
 
    The typeof
     operator is used in either of the following ways:
    
 
-
    typeof operand
+
    typeof operand
 typeof (operand)
 
    
 
@@ -869,7 +869,7 @@ 
    typeof
    
 
 
    Suppose you define the following variables:
    
 
-
    var myFun = new Function('5 + 2');
+
    var myFun = new Function('5 + 2');
 var shape = 'round';
 var size = 1;
 var foo = ['Apple', 'Mango', 'Orange'];
@@ -878,7 +878,7 @@ 
    typeof
    
 
 
    The typeof operator returns the following results for these variables:
    
 
-
    typeof myFun;       // returns "function"
+
    typeof myFun;       // returns "function"
 typeof shape;       // returns "string"
 typeof size;        // returns "number"
 typeof foo;         // returns "object"
@@ -889,21 +889,21 @@ 
    typeof
    
 
    For the keywords true and null, the typeof
   operator returns the following results:
    
 
-
    typeof true; // returns "boolean"
+
    typeof true; // returns "boolean"
 typeof null; // returns "object"
 
    
 
 
    For a number or string, the typeof operator returns the following results:
 
    
 
-
    typeof 62;            // returns "number"
+
    typeof 62;            // returns "number"
 typeof 'Hello world'; // returns "string"
 
    
 
 
    For property values, the typeof operator returns the type of value the
   property contains:
    
 
-
    typeof document.lastModified; // returns "string"
+
    typeof document.lastModified; // returns "string"
 typeof window.length;         // returns "number"
 typeof Math.LN2;              // returns "number"
 
    
@@ -911,7 +911,7 @@ 
    typeof
    
 
    For methods and functions, the typeof operator returns results as follows:
 
    
 
-
    typeof blur;        // returns "function"
+
    typeof blur;        // returns "function"
 typeof eval;        // returns "function"
 typeof parseInt;    // returns "function"
 typeof shape.split; // returns "function"
@@ -920,7 +920,7 @@ 
    typeof
    
 
    For predefined objects, the typeof operator returns results as follows:
 
    
 
-
    typeof Date;     // returns "function"
+
    typeof Date;     // returns "function"
 typeof Function; // returns "function"
 typeof Math;     // returns "object"
 typeof Option;   // returns "function"
@@ -932,7 +932,7 @@ 
    void
    
 
    The void
     operator is used in either of the following ways:
    
 
-
    void (expression)
+
    void (expression)
 void expression
 
    
 
@@ -952,7 +952,7 @@ 
    in
    
     operator returns true if the specified property is in the specified
   object. The syntax is:
    
 
-
    propNameOrNumber in objectName
+
    propNameOrNumber in objectName
 
    
 
 
    where propNameOrNumber is a string, numeric, or symbol expression
@@ -961,7 +961,7 @@ 
    in
    
 
 
    The following examples show some uses of the in operator.
    
 
-
    // Arrays
+
    // Arrays
 var trees = ['redwood', 'bay', 'cedar', 'oak', 'maple'];
 0 in trees;        // returns true
 3 in trees;        // returns true
@@ -988,7 +988,7 @@ 
    instanceof
    
     operator returns true if the specified object is of the specified
   object type. The syntax is:
    
 
-
    objectName instanceof objectType
+
    objectName instanceof objectType
 
    
 
 
    where objectName is the name of the object to compare to
@@ -1003,7 +1003,7 @@ 
    instanceof
    
   theDay is a Date object. Because theDay is a
   Date object, the statements in the if statement execute.
    
 
-
    var theDay = new Date(1995, 12, 17);
+
    var theDay = new Date(1995, 12, 17);
 if (theDay instanceof Date) {
   // statements to execute
 }
@@ -1140,14 +1140,14 @@ 
    this
    
   the calling object in a method. Use this either with the dot or the bracket
   notation:
    
 
-
    this['propertyName']
+
    this['propertyName']
 this.propertyName
 
    
 
 
    Suppose a function called validate validates an object's
   value property, given the object and the high and low values:
    
 
-
    function validate(obj, lowval, hival) {
+
    function validate(obj, lowval, hival) {
   if ((obj.value < lowval) || (obj.value > hival))
     console.log('Invalid Value!');
 }
@@ -1157,7 +1157,7 @@ 
    this
    
   handler, using this to pass it to the form element, as in the following
   example:
    
 
-
    <p>Enter a number between 18 and 99:</p>
+
    <p>Enter a number between 18 and 99:</p>
 <input type="text" name="age" size=3 onChange="validate(this, 18, 99);">
 
    
 
@@ -1167,7 +1167,7 @@ 
    Grouping operator
    
   expressions. For example, you can override multiplication and division first, then
   addition and subtraction to evaluate addition first.
    
 
-
    var a = 1;
+
    var a = 1;
 var b = 2;
 var c = 3;
 
@@ -1195,7 +1195,7 @@ 
    new
    
     operator to create an instance of a user-defined object type or of one of the
   built-in object types. Use new as follows:
    
 
-
    var objectName = new objectType([param1, param2, ..., paramN]);
+
    var objectName = new objectType([param1, param2, ..., paramN]);
 
    
 
 
    super
    
@@ -1205,7 +1205,7 @@ 
    super
    
     href="/en-US/docs/Web/JavaScript/Reference/Classes">classes to call the parent
   constructor, for example.
    
 
-
    super([arguments]); // calls the parent constructor.
+
    super([arguments]); // calls the parent constructor.
 super.functionOnParent([arguments]);
 
    
 
diff --git a/files/en-us/web/javascript/guide/functions/index.html b/files/en-us/web/javascript/guide/functions/index.html
index 69b046ad8adf8ae..92792946496e804 100644
--- a/files/en-us/web/javascript/guide/functions/index.html
+++ b/files/en-us/web/javascript/guide/functions/index.html
@@ -28,21 +28,21 @@ 
    Function declarations
    
 
 
    For example, the following code defines a simple function named square:
    
 
-
    function square(number) {
+
    function square(number) {
   return number * number;
 }
 
    
 
 
    The function square takes one parameter, called number. The function consists of one statement that says to return the parameter of the function (that is, number) multiplied by itself. The statement return specifies the value returned by the function:
    
 
-
    return number * number;
+
    return number * number;
 
    
 
 
    Primitive parameters (such as a number) are passed to functions by value; the value is passed to the function, but if the function changes the value of the parameter, this change is not reflected globally or in the calling function.
    
 
 
    If you pass an object (i.e. a non-primitive value, such as {{jsxref("Array")}} or a user-defined object) as a parameter and the function changes the object's properties, that change is visible outside the function, as shown in the following example:
    
 
-
    function myFunc(theObject) {
+
    function myFunc(theObject) {
   theObject.make = 'Toyota';
 }
 
@@ -62,19 +62,19 @@ 
    Function expressions
    
 
 
    Such a function can be anonymous; it does not have to have a name. For example, the function square could have been defined as:
    
 
-
    const square = function(number) { return number * number }
+
    const square = function(number) { return number * number }
 var x = square(4) // x gets the value 16
    
 
 
    However, a name can be provided with a function expression. Providing a name allows the function to refer to itself, and also makes it easier to identify the function in a debugger's stack traces:
    
 
-
    const factorial = function fac(n) { return n < 2 ? 1 : n * fac(n - 1) }
+
    const factorial = function fac(n) { return n < 2 ? 1 : n * fac(n - 1) }
 
 console.log(factorial(3))
 
    
 
 
    Function expressions are convenient when passing a function as an argument to another function. The following example shows a map function that should receive a function as first argument and an array as second argument. 
    
 
-
    function map(f, a) {
+
    function map(f, a) {
   let result = []; // Create a new Array
   let i; // Declare variable
   for (i = 0; i != a.length; i++)
@@ -85,7 +85,7 @@ 
    Function expressions
    
 
 
    In the following code, the function receives a function defined by a function expression and executes it for every element of the array received as a second argument. 
    
 
-
    function map(f, a) {
+
    function map(f, a) {
   let result = []; // Create a new Array
   let i; // Declare variable
   for (i = 0; i != a.length; i++)
@@ -103,7 +103,7 @@ 
    Function expressions
    
 
 
    In JavaScript, a function can be defined based on a condition. For example, the following function definition defines myFunc only if num equals 0:
    
 
-
    var myFunc;
+
    var myFunc;
 if (num === 0) {
   myFunc = function(theObject) {
     theObject.make = 'Toyota';
@@ -120,14 +120,14 @@ 
    Calling functions
    
 
 
    Calling the function actually performs the specified actions with the indicated parameters. For example, if you define the function square, you could call it as follows:
    
 
-
    square(5);
+
    square(5);
 
    
 
 
    The preceding statement calls the function with an argument of 5. The function executes its statements and returns the value 25.
    
 
 
    Functions must be in scope when they are called, but the function declaration can be hoisted (appear below the call in the code), as in this example:
    
 
-
    console.log(square(5));
+
    console.log(square(5));
 /* ... */
 function square(n) { return n * n }
 
    
@@ -139,7 +139,7 @@ 
    Calling functions
    
 
 
    This means that function hoisting only works with function declarations—not with function expressions.
    
 
-
    console.log(square)    // square is hoisted with an initial value undefined.
+
    console.log(square)    // square is hoisted with an initial value undefined.
 console.log(square(5)) // Uncaught TypeError: square is not a function
 const square = function(n) {
   return n * n;
@@ -151,7 +151,7 @@ 
    Calling functions
    
 
 
    A function can call itself. For example, here is a function that computes factorials recursively:
    
 
-
    function factorial(n) {
+
    function factorial(n) {
   if ((n === 0) || (n === 1))
     return 1;
   else
@@ -161,7 +161,7 @@ 
    Calling functions
    
 
 
    You could then compute the factorials of 1 through 5 as follows:
    
 
-
    var a, b, c, d, e;
+
    var a, b, c, d, e;
 a = factorial(1); // a gets the value 1
 b = factorial(2); // b gets the value 2
 c = factorial(3); // c gets the value 6
@@ -179,7 +179,7 @@ 
    Function scope
    
 
 
    In other words, a function defined in the global scope can access all variables defined in the global scope. A function defined inside another function can also access all variables defined in its parent function, and any other variables to which the parent function has access.
    
 
-
    // The following variables are defined in the global scope
+
    // The following variables are defined in the global scope
 var num1 = 20,
     num2 = 3,
     name = 'Chamahk';
@@ -220,7 +220,7 @@ 
    Recursion
    
 
 
    For example, consider the following function definition:
    
 
-
    var foo = function bar() {
+
    var foo = function bar() {
    // statements go here
 }
 
    
@@ -237,7 +237,7 @@ 
    Recursion
    
 
 
    For example, the following loop...
    
 
-
    var x = 0;
+
    var x = 0;
 while (x < 10) { // "x < 10" is the loop condition
    // do stuff
    x++;
@@ -246,7 +246,7 @@ 
    Recursion
    
 
 
    ...can be converted into a recursive function declaration, followed by a call to that function:
    
 
-
    function loop(x) {
+
    function loop(x) {
   if (x >= 10) // "x >= 10" is the exit condition (equivalent to "!(x < 10)")
     return;
   // do stuff
@@ -257,7 +257,7 @@ 
    Recursion
    
 
 
    However, some algorithms cannot be simple iterative loops. For example, getting all the nodes of a tree structure (such as the DOM) is easier via recursion:
    
 
-
    function walkTree(node) {
+
    function walkTree(node) {
   if (node == null) //
     return;
   // do something with node
@@ -273,7 +273,7 @@ 
    Recursion
    
 
 
    In fact, recursion itself uses a stack: the function stack. The stack-like behavior can be seen in the following example:
    
 
-
    function foo(i) {
+
    function foo(i) {
   if (i < 0)
     return;
   console.log('begin: ' + i);
@@ -313,7 +313,7 @@ 
    Nested functions and closures
    
 
 
    The following example shows nested functions:
    
 
-
    function addSquares(a, b) {
+
    function addSquares(a, b) {
   function square(x) {
     return x * x;
   }
@@ -326,7 +326,7 @@ 
    Nested functions and closures
    
 
 
    Since the inner function forms a closure, you can call the outer function and specify arguments for both the outer and inner function:
    
 
-
    function outside(x) {
+
    function outside(x) {
   function inside(y) {
     return x + y;
   }
@@ -359,7 +359,7 @@ 
    Multiply-nested functions
    
 
 
    Consider the following example:
    
 
-
    function A(x) {
+
    function A(x) {
   function B(y) {
     function C(z) {
       console.log(x + y + z);
@@ -387,7 +387,7 @@ 
    Name conflicts
    
 
 
    When two arguments or variables in the scopes of a closure have the same name, there is a name conflict. More nested scopes take precedence. So, the inner-most scope takes the highest precedence, while the outer-most scope takes the lowest. This is the scope chain. The first on the chain is the inner-most scope, and the last is the outer-most scope. Consider the following:
    
 
-
    function outside() {
+
    function outside() {
   var x = 5;
   function inside(x) {
     return x * 2;
@@ -408,7 +408,7 @@ 
    Closures
    
 
 
    Also, since the inner function has access to the scope of the outer function, the variables and functions defined in the outer function will live longer than the duration of the outer function execution, if the inner function manages to survive beyond the life of the outer function. A closure is created when the inner function is somehow made available to any scope outside the outer function.
    
 
-
    var pet = function(name) {   // The outer function defines a variable called "name"
+
    var pet = function(name) {   // The outer function defines a variable called "name"
   var getName = function() {
     return name;             // The inner function has access to the "name" variable of the outer
                              //function
@@ -422,7 +422,7 @@ 
    Closures
    
 
 
    It can be much more complex than the code above. An object containing methods for manipulating the inner variables of the outer function can be returned.
    
 
-
    var createPet = function(name) {
+
    var createPet = function(name) {
   var sex;
 
   return {
@@ -458,7 +458,7 @@ 
    Closures
    
 
 
    In the code above, the name variable of the outer function is accessible to the inner functions, and there is no other way to access the inner variables except through the inner functions. The inner variables of the inner functions act as safe stores for the outer arguments and variables. They hold "persistent" and "encapsulated" data for the inner functions to work with. The functions do not even have to be assigned to a variable, or have a name.
    
 
-
    var getCode = (function() {
+
    var getCode = (function() {
   var apiCode = '0]Eal(eh&2';    // A code we do not want outsiders to be able to modify...
 
   return function() {
@@ -474,7 +474,7 @@ 
    Closures
    
 
 
    If an enclosed function defines a variable with the same name as a variable in the outer scope, then there is no way to refer to the variable in the outer scope again.  (The inner scope variable "overrides" the outer one, until the program exits the inner scope.)
    
 
-
    var createPet = function(name) {  // The outer function defines a variable called "name".
+
    var createPet = function(name) {  // The outer function defines a variable called "name".
   return {
     setName: function(name) {    // The enclosed function also defines a variable called "name".
       name = name;               // How do we access the "name" defined by the outer function?
@@ -488,7 +488,7 @@ 
    Using the arguments object
    
 
 
    The arguments of a function are maintained in an array-like object. Within a function, you can address the arguments passed to it as follows:
    
 
-
    arguments[i]
+
    arguments[i]
 
    
 
 
    where i is the ordinal number of the argument, starting at 0. So, the first argument passed to a function would be arguments[0]. The total number of arguments is indicated by arguments.length.
    
@@ -497,7 +497,7 @@ 
    Using the arguments object
    
 
 
    For example, consider a function that concatenates several strings. The only formal argument for the function is a string that specifies the characters that separate the items to concatenate. The function is defined as follows:
    
 
-
    function myConcat(separator) {
+
    function myConcat(separator) {
    var result = ''; // initialize list
    var i;
    // iterate through arguments
@@ -510,7 +510,7 @@ 
    Using the arguments object
    
 
 
    You can pass any number of arguments to this function, and it concatenates each argument into a string "list":
    
 
-
    // returns "red, orange, blue, "
+
    // returns "red, orange, blue, "
 myConcat(', ', 'red', 'orange', 'blue');
 
 // returns "elephant; giraffe; lion; cheetah; "
@@ -540,7 +540,7 @@ 
    Without default paramete
 
 
    In the following example, if no value is provided for b, its value would be undefined when evaluating a*b, and a call to multiply would normally have returned NaN. However, this is prevented by the second line in this example:
    
 
-
    function multiply(a, b) {
+
    function multiply(a, b) {
   b = typeof b !== 'undefined' ?  b : 1;
 
   return a * b;
@@ -553,7 +553,7 @@ 
    With default parameters (p
 
 
    With default parameters, a manual check in the function body is no longer necessary. You can put 1 as the default value for b in the function head:
    
 
-
    function multiply(a, b = 1) {
+
    function multiply(a, b = 1) {
   return a * b;
 }
 
@@ -567,7 +567,7 @@ 
    Rest parameters
    
 
 
    In the following example, the function multiply uses rest parameters to collect arguments from the second one to the end. The function then multiplies these by the first argument . 
    
 
-
    function multiply(multiplier, ...theArgs) {
+
    function multiply(multiplier, ...theArgs) {
   return theArgs.map(x => multiplier * x);
 }
 
@@ -584,7 +584,7 @@ 
    Shorter functions
    
 
 
    In some functional patterns, shorter functions are welcome. Compare:
    
 
-
    var a = [
+
    var a = [
   'Hydrogen',
   'Helium',
   'Lithium',
@@ -604,7 +604,7 @@ 
    No separate this
    
 
 
    Until arrow functions, every new function defined its own this value (a new object in the case of a constructor, undefined in strict mode function calls, the base object if the function is called as an "object method", etc.). This proved to be less than ideal with an object-oriented style of programming.
    
 
-
    function Person() {
+
    function Person() {
   // The Person() constructor defines `this` as itself.
   this.age = 0;
 
@@ -620,7 +620,7 @@ 
    No separate this
    
 
 
    In ECMAScript 3/5, this issue was fixed by assigning the value in this to a variable that could be closed over.
    
 
-
    function Person() {
+
    function Person() {
   var self = this; // Some choose `that` instead of `self`.
                    // Choose one and be consistent.
   self.age = 0;
@@ -636,7 +636,7 @@ 
    No separate this
    
 
 
    An arrow function does not have its own this; the this value of the enclosing execution context is used. Thus, in the following code, the this within the function that is passed to setInterval has the same value as this in the enclosing function:
    
 
-
    function Person() {
+
    function Person() {
   this.age = 0;
 
   setInterval(() => {
diff --git a/files/en-us/web/javascript/guide/grammar_and_types/index.html b/files/en-us/web/javascript/guide/grammar_and_types/index.html
index a1f6fbeccdc874b..fb3673de3ac27da 100644
--- a/files/en-us/web/javascript/guide/grammar_and_types/index.html
+++ b/files/en-us/web/javascript/guide/grammar_and_types/index.html
@@ -16,7 +16,7 @@ 
    Basics
    
 
 
    JavaScript is case-sensitive and uses the Unicode character set. For example, the word Früh (which means "early" in German) could be used as a variable name.
    
 
-
    let Früh = "foobar"
    
+
    let Früh = "foobar"
    
 
 
    But, the variable früh is not the same as Früh because JavaScript is case sensitive.
    
 
@@ -36,7 +36,7 @@ 
    Comments
    
 
 
    The syntax of comments is the same as in C++ and in many other languages:
    
 
-
    // a one line comment
+
    // a one line comment
 
 /* this is a longer,
  * multi-line comment
@@ -97,7 +97,7 @@ 
    Evaluating variables
    
 
 
    An attempt to access an undeclared variable results in a {{jsxref("ReferenceError")}} exception being thrown:
    
 
-
    var a;
+
    var a;
 console.log('The value of a is ' + a); // The value of a is undefined
 
 console.log('The value of b is ' + b); // The value of b is undefined
@@ -114,7 +114,7 @@ 
    Evaluating variables
    
 
 
    You can use undefined to determine whether a variable has a value. In the following code, the variable input is not assigned a value, and the if statement evaluates to true.
    
 
-
    var input;
+
    var input;
 if (input === undefined) {
   doThis();
 } else {
@@ -124,18 +124,18 @@ 
    Evaluating variables
    
 
 
    The undefined value behaves as false when used in a boolean context. For example, the following code executes the function myFunction because the myArray element is undefined:
    
 
-
    var myArray = [];
+
    var myArray = [];
 if (!myArray[0]) myFunction();
 
    
 
 
    The undefined value converts to NaN when used in numeric context.
    
 
-
    var a;
+
    var a;
 a + 2;  // Evaluates to NaN
    
 
 
    When you evaluate a {{jsxref("null")}} variable, the null value behaves as 0 in numeric contexts and as false in boolean contexts. For example:
    
 
-
    var n = null;
+
    var n = null;
 console.log(n * 32); // Will log 0 to the console
 
    
 
@@ -147,7 +147,7 @@ 
    Variable scope
    
 
 
    For example, the following code will log 5, because the scope of x is the global context (or the function context if the code is part of a function). The scope of x is not limited to the immediate if statement block.
    
 
-
    if (true) {
+
    if (true) {
   var x = 5;
 }
 console.log(x);  // x is 5
@@ -155,7 +155,7 @@ 
    Variable scope
    
 
 
    This behavior changes when using the let declaration (introduced in ECMAScript 2015).
    
 
-
    if (true) {
+
    if (true) {
   let y = 5;
 }
 console.log(y);  // ReferenceError: y is not defined
@@ -167,7 +167,7 @@ 
    Variable hoisting
    
 
 
    This concept is known as hoisting. Variables in JavaScript are, in a sense, "hoisted" (or "lifted") to the top of the function or statement. However, variables that are hoisted return a value of undefined. So even if you declare and initialize after you use or refer to this variable, it still returns undefined.
    
 
-
    /**
+
    /**
  * Example 1
  */
 console.log(x === undefined); // true
@@ -187,7 +187,7 @@ 
    Variable hoisting
    
 
 
    The above examples will be interpreted the same as:
    
 
-
    /**
+
    /**
  * Example 1
  */
 var x;
@@ -210,14 +210,14 @@ 
    Variable hoisting
    
 
 
    In ECMAScript 2015, let and const are hoisted but not initialized. Referencing the variable in the block before the variable declaration results in a {{jsxref("ReferenceError")}}, because the variable is in a "temporal dead zone" from the start of the block until the declaration is processed.
    
 
-
    console.log(x); // ReferenceError
+
    console.log(x); // ReferenceError
 let x = 3;
    
 
 
    Function hoisting
    
 
 
    In the case of functions, only function declarations are hoisted—but not the function expressions.
    
 
-
    /* Function declaration */
+
    /* Function declaration */
 
 foo(); // "bar"
 
@@ -248,7 +248,7 @@ 
    Constants
    
 
 
    The syntax of a constant identifier is the same as any variable identifier: it must start with a letter, underscore, or dollar sign ($), and can contain alphabetic, numeric, or underscore characters.
    
 
-
    const PI = 3.14;
+
    const PI = 3.14;
 
    
 
 
    A constant cannot change value through assignment or be re-declared while the script is running. It must be initialized to a value.
    
@@ -257,7 +257,7 @@ 
    Constants
    
 
 
    You cannot declare a constant with the same name as a function or variable in the same scope. For example:
    
 
-
    // THIS WILL CAUSE AN ERROR
+
    // THIS WILL CAUSE AN ERROR
 function f() {};
 const f = 5;
 
@@ -272,12 +272,12 @@ 
    Constants
    
 
 
    However, the properties of objects assigned to constants are not protected, so the following statement is executed without problems.
    
 
-
    const MY_OBJECT = {'key': 'value'};
+
    const MY_OBJECT = {'key': 'value'};
 MY_OBJECT.key = 'otherValue';
    
 
 
    Also, the contents of an array are not protected, so the following statement is executed without problems.
    
 
-
    const MY_ARRAY = ['HTML','CSS'];
+
    const MY_ARRAY = ['HTML','CSS'];
 MY_ARRAY.push('JAVASCRIPT');
 console.log(MY_ARRAY); //logs ['HTML','CSS','JAVASCRIPT'];
 
    
@@ -311,12 +311,12 @@ 
    Data type conversion
    
 
 
    So, for example, you could define a variable as follows:
    
 
-
    var answer = 42;
+
    var answer = 42;
 
    
 
 
    And later, you could assign the same variable a string value, for example:
    
 
-
    answer = 'Thanks for all the fish...';
+
    answer = 'Thanks for all the fish...';
 
    
 
 
    Because JavaScript is dynamically typed, this assignment does not cause an error message.
    
@@ -325,13 +325,13 @@ 
    Numbers and the '+' operator
    
 
 
    In expressions involving numeric and string values with the + operator, JavaScript converts numeric values to strings. For example, consider the following statements:
    
 
-
    x = 'The answer is ' + 42 // "The answer is 42"
+
    x = 'The answer is ' + 42 // "The answer is 42"
 y = 42 + ' is the answer' // "42 is the answer"
 
    
 
 
    With all other operators, JavaScript does not convert numeric values to strings. For example:
    
 
-
    '37' - 7 // 30
+
    '37' - 7 // 30
 '37' + 7 // "377"
 
    
 
@@ -350,11 +350,11 @@ 
    Converting strings to numbers
    
 
    Additionally, a best practice for parseInt is to always include the radix parameter. The radix parameter is used to specify which numerical system is to be used.
    
 
 
-
    parseInt('101', 2) // 5
    
+
    parseInt('101', 2) // 5
    
 
 
    An alternative method of retrieving a number from a string is with the + (unary plus) operator:
    
 
-
    '1.1' + '1.1' // '1.11.1'
+
    '1.1' + '1.1' // '1.11.1'
 (+'1.1') + (+'1.1') // 2.2
 // Note: the parentheses are added for clarity, not required.
    
 
@@ -378,7 +378,7 @@ 
    Array literals
    
 
 
    The following example creates the coffees array with three elements and a length of three:
    
 
-
    let coffees = ['French Roast', 'Colombian', 'Kona'];
+
    let coffees = ['French Roast', 'Colombian', 'Kona'];
 
    
 
 
    
@@ -395,7 +395,7 @@ 
    Extra commas in array literals
    
 
 
    You do not have to specify all elements in an array literal. If you put two commas in a row, the array fills in the value undefined for the unspecified elements. The following example creates the fish array:
    
 
-
    let fish = ['Lion', , 'Angel'];
+
    let fish = ['Lion', , 'Angel'];
 
    
 
 
    This array has two elements with values and one empty element:
    
@@ -414,17 +414,17 @@ 
    Extra commas in array literals
    
 
    Note : Trailing commas can create errors in older browser versions and it is a best practice to remove them.
    
 
    
 
-
    let myList = ['home', , 'school', ];
+
    let myList = ['home', , 'school', ];
 
    
 
 
    In the following example, the length of the array is four, and myList[0] and myList[2] are missing.
    
 
-
    let myList = [ ,'home', , 'school'];
+
    let myList = [ ,'home', , 'school'];
 
    
 
 
    In the following example, the length of the array is four, and myList[1] and myList[3] are missing. Only the last comma is ignored.
    
 
-
    let myList = ['home', , 'school', , ];
+
    let myList = ['home', , 'school', , ];
 
    
 
 
    Understanding the behavior of extra commas is important to understanding JavaScript as a language.
    
@@ -456,7 +456,7 @@ 
    Numeric literals
    
 
 
    Some examples of numeric literals are:
    
 
-
    0, 117, -345, 123456789123456789n             (decimal, base 10)
+
    0, 117, -345, 123456789123456789n             (decimal, base 10)
 015, 0001, -0o77, 0o777777777777n             (octal, base 8)
 0x1123, 0x00111, -0xF1A7, 0x123456789ABCDEFn  (hexadecimal, "hex" or base 16)
 0b11, 0b0011, -0b11, 0b11101001010101010101n  (binary, base 2)
@@ -479,12 +479,12 @@ 
    Floating-point literals
    
 
 
    More succinctly, the syntax is:
    
 
-
    [(+|-)][digits].[digits][(E|e)[(+|-)]digits]
+
    [(+|-)][digits].[digits][(E|e)[(+|-)]digits]
 
    
 
 
    For example:
    
 
-
    3.1415926
+
    3.1415926
 -.123456789
 -3.1E+12
 .1e-23
@@ -500,7 +500,7 @@ 
    Object literals
    
 
 
    The following is an example of an object literal. The first element of the car object defines a property, myCar, and assigns to it a new string, "Saturn"; the second element, the getCar property, is immediately assigned the result of invoking the function (carTypes("Honda")); the third element, the special property, uses an existing variable (sales).
    
 
-
    var sales = 'Toyota';
+
    var sales = 'Toyota';
 
 function carTypes(name) {
   if (name === 'Honda') {
@@ -519,7 +519,7 @@ 
    Object literals
    
 
 
    Additionally, you can use a numeric or string literal for the name of a property or nest an object inside another. The following example uses these options.
    
 
-
    var car = { manyCars: {a: 'Saab', b: 'Jeep'}, 7: 'Mazda' };
+
    var car = { manyCars: {a: 'Saab', b: 'Jeep'}, 7: 'Mazda' };
 
 console.log(car.manyCars.b); // Jeep
 console.log(car[7]); // Mazda
@@ -529,7 +529,7 @@ 
    Object literals
    
 
 
    Property names that are not valid identifiers cannot be accessed as a dot (.) property, but can be accessed and set with the array-like notation("[]").
    
 
-
    var unusualPropertyNames = {
+
    var unusualPropertyNames = {
   '': 'An empty string',
   '!': 'Bang!'
 }
@@ -544,7 +544,7 @@ 
    Enhanced Object literals
    
 
 
    Together, these also bring object literals and class declarations closer together, and allow object-based design to benefit from some of the same conveniences.
    
 
-
    var obj = {
+
    var obj = {
     // __proto__
     __proto__: theProtoObj,
     // Shorthand for ‘handler: handler’
@@ -563,7 +563,7 @@ 
    RegExp literals
    
 
 
    A regex literal (which is defined in detail later) is a pattern enclosed between slashes. The following is an example of a regex literal.
    
 
-
    var re = /ab+c/;
    
+
    var re = /ab+c/;
    
 
 
    String literals
    
 
@@ -571,7 +571,7 @@ 
    String literals
    
 
 
    The following are examples of string literals:
    
 
-
    'foo'
+
    'foo'
 "bar"
 '1234'
 'one line \n another line'
@@ -580,7 +580,7 @@ 
    String literals
    
 
 
    You can call any of the {{jsxref("String")}} object's methods on a string literal value. JavaScript automatically converts the string literal to a temporary String object, calls the method, then discards the temporary String object. You can also use the String.length property with a string literal:
    
 
-
    // Will print the number of symbols in the string including whitespace.
+
    // Will print the number of symbols in the string including whitespace.
 console.log("John's cat".length)  // In this case, 10.
 
    
 
@@ -590,7 +590,7 @@ 
    String literals
    
 
 
    Optionally, a tag can be added to allow the string construction to be customized, avoiding injection attacks, or constructing higher-level data structures from string contents.
    
 
-
    // Basic literal string creation
+
    // Basic literal string creation
 `In JavaScript '\n' is a line-feed.`
 
 // Multiline strings
@@ -615,7 +615,7 @@ 
    Using special characters in strings
 
 
    In addition to ordinary characters, you can also include special characters in strings, as shown in the following example.
    
 
-
    'one line \n another line'
+
    'one line \n another line'
 
    
 
 
    The following table lists the special characters that you can use in JavaScript strings.
    
@@ -700,23 +700,23 @@ 
    Escaping characters
    
 
 
    You can insert a quotation mark inside a string by preceding it with a backslash. This is known as escaping the quotation mark. For example:
    
 
-
    var quote = "He read \"The Cremation of Sam McGee\" by R.W. Service.";
+
    var quote = "He read \"The Cremation of Sam McGee\" by R.W. Service.";
 console.log(quote);
 
    
 
 
    The result of this would be:
    
 
-
    He read "The Cremation of Sam McGee" by R.W. Service.
+
    He read "The Cremation of Sam McGee" by R.W. Service.
 
    
 
 
    To include a literal backslash inside a string, you must escape the backslash character. For example, to assign the file path c:\temp to a string, use the following:
    
 
-
    var home = 'c:\\temp';
+
    var home = 'c:\\temp';
 
    
 
 
    You can also escape line breaks by preceding them with backslash. The backslash and line break are both removed from the value of the string.
    
 
-
    var str = 'this string \
+
    var str = 'this string \
 is broken \
 across multiple \
 lines.'
@@ -725,7 +725,7 @@ 
    Escaping characters
    
 
 
    Although JavaScript does not have "heredoc" syntax, you can get close by adding a line break escape and an escaped line break at the end of each line:
    
 
-
    var poem =
+
    var poem =
 'Roses are red,\n\
 Violets are blue.\n\
 Sugar is sweet,\n\
@@ -734,7 +734,7 @@ 
    Escaping characters
    
 
 
    ECMAScript 2015 introduces a new type of literal, namely template literals. This allows for many new features, including multiline strings!
    
 
-
    var poem =
+
    var poem =
 `Roses are red,
 Violets are blue.
 Sugar is sweet,
diff --git a/files/en-us/web/javascript/guide/indexed_collections/index.html b/files/en-us/web/javascript/guide/indexed_collections/index.html
index 93d6407f6d8fb28..6050334bff16af8 100644
--- a/files/en-us/web/javascript/guide/indexed_collections/index.html
+++ b/files/en-us/web/javascript/guide/indexed_collections/index.html
@@ -22,7 +22,7 @@ 
    Creating an array
    
 
 
    The following statements create equivalent arrays:
    
 
-
    let arr = new Array(element0, element1, ..., elementN)
+
    let arr = new Array(element0, element1, ..., elementN)
 let arr = Array(element0, element1, ..., elementN)
 let arr = [element0, element1, ..., elementN]
 
    
@@ -33,7 +33,7 @@ 
    Creating an array
    
 
 
    To create an array with non-zero length, but without any items, either of the following can be used:
    
 
-
    // This...
+
    // This...
 let arr = new Array(arrayLength)
 
 // ...results in the same array as this
@@ -50,7 +50,7 @@ 
    Creating an array
    
 
 
    In addition to a newly defined variable as shown above, arrays can also be assigned as a property of a new or an existing object:
    
 
-
    let obj = {}
+
    let obj = {}
 // ...
 obj.prop = [element0, element1, ..., elementN]
 
@@ -60,7 +60,7 @@ 
    Creating an array
    
 
 
    If you wish to initialize an array with a single element, and the element happens to be a Number, you must use the bracket syntax. When a single Number value is passed to the Array() constructor or function, it is interpreted as an arrayLength, not as a single element.
    
 
-
    let arr = [42]       // Creates an array with only one element:
+
    let arr = [42]       // Creates an array with only one element:
                      // the number 42.
 
 let arr = Array(42)  // Creates an array with no elements
@@ -73,20 +73,20 @@ 
    Creating an array
    
 
 
    Calling Array(N) results in a RangeError, if N is a non-whole number whose fractional portion is non-zero. The following example illustrates this behavior.
    
 
-
    let arr = Array(9.3)   // RangeError: Invalid array length
+
    let arr = Array(9.3)   // RangeError: Invalid array length
 
    
 
 
    If your code needs to create arrays with single elements of an arbitrary data type, it is safer to use array literals. Alternatively, create an empty array first before adding the single element to it.
    
 
 
    In ES2015, you can use the {{jsxref("Array.of")}} static method to create arrays with single element.
    
 
-
    let wisenArray = Array.of(9.3)   // wisenArray contains only one element 9.3
    
+
    let wisenArray = Array.of(9.3)   // wisenArray contains only one element 9.3
    
 
 
    Referring to array elements
    
 
 
    Because elements are also properties, you can access the using property accessors. Suppose you define the following array:
    
 
-
    let myArray = ['Wind', 'Rain', 'Fire']
+
    let myArray = ['Wind', 'Rain', 'Fire']
 
    
 
 
    You can refer to the first element of the array as myArray[0], the second element of the array as myArray[1], etc… The index of the elements begins with zero.
    
@@ -94,7 +94,7 @@ 
    Referring to array elements
    
 
    
 
    Note: You can also use property accessors to access other properties of the array, like with an object.
    
 
-
    let arr = ['one', 'two', 'three']
+
    let arr = ['one', 'two', 'three']
 arr[2]          // three
 arr['length']   // 3
 
    
@@ -104,7 +104,7 @@ 
    Populating an array
    
 
 
    You can populate an array by assigning values to its elements. For example:
    
 
-
    let emp = []
+
    let emp = []
 emp[0] = 'Casey Jones'
 emp[1] = 'Phil Lesh'
 emp[2] = 'August West'
@@ -113,7 +113,7 @@ 
    Populating an array
    
 
    
 
    Note: If you supply a non-integer value to the array operator in the code above, a property will be created in the object representing the array, instead of an array element.
    
 
-
    let arr = []
+
    let arr = []
 arr[3.4] = 'Oranges'
 console.log(arr.length)                 // 0
 console.log(arr.hasOwnProperty(3.4))    // true
@@ -122,7 +122,7 @@ 
    Populating an array
    
 
 
    You can also populate an array when you create it:
    
 
-
    let myArray = new Array('Hello', myVar, 3.14159)
+
    let myArray = new Array('Hello', myVar, 3.14159)
 // OR
 let myArray = ['Mango', 'Apple', 'Orange']
 
    
@@ -135,7 +135,7 @@ 
    Understanding length
    
 
 
    Remember, JavaScript Array indexes are 0-based: they start at 0, not 1. This means that the length property will be one more than the highest index stored in the array:
    
 
-
    let cats = []
+
    let cats = []
 cats[30] = ['Dusty']
 console.log(cats.length) // 31
 
    
@@ -144,7 +144,7 @@ 
    Understanding length
    
 
 
    Writing a value that is shorter than the number of stored items truncates the array. Writing 0 empties it entirely:
    
 
-
    let cats = ['Dusty', 'Misty', 'Twiggy']
+
    let cats = ['Dusty', 'Misty', 'Twiggy']
 console.log(cats.length)  // 3
 
 cats.length = 2
@@ -161,7 +161,7 @@ 
    Iterating over arrays
    
 
 
    A common operation is to iterate over the values of an array, processing each one in some way. The simplest way to do this is as follows:
    
 
-
    let colors = ['red', 'green', 'blue']
+
    let colors = ['red', 'green', 'blue']
 for (let i = 0; i < colors.length; i++) {
   console.log(colors[i])
 }
@@ -169,7 +169,7 @@ 
    Iterating over arrays
    
 
 
    If you know that none of the elements in your array evaluate to false in a boolean context—if your array consists only of DOM nodes, for example—you can use a more efficient idiom:
    
 
-
    let divs = document.getElementsByTagName('div')
+
    let divs = document.getElementsByTagName('div')
 for (let i = 0, div; div = divs[i]; i++) {
   /* Process div in some way */
 }
@@ -179,7 +179,7 @@ 
    Iterating over arrays
    
 
 
    The {{jsxref("Array.forEach", "forEach()")}} method provides another way of iterating over an array:
    
 
-
    let colors = ['red', 'green', 'blue']
+
    let colors = ['red', 'green', 'blue']
 colors.forEach(function(color) {
   console.log(color)
 })
@@ -190,7 +190,7 @@ 
    Iterating over arrays
    
 
 
    Alternatively, you can shorten the code for the forEach parameter with ES2015 Arrow Functions:
    
 
-
    let colors = ['red', 'green', 'blue']
+
    let colors = ['red', 'green', 'blue']
 colors.forEach(color => console.log(color))
 // red
 // green
@@ -201,7 +201,7 @@ 
    Iterating over arrays
    
 
 
    Note that the elements of an array that are omitted when the array is defined are not listed when iterating by forEach, but are listed when undefined has been manually assigned to the element:
    
 
-
    let array = ['first', 'second', , 'fourth']
+
    let array = ['first', 'second', , 'fourth']
 
 array.forEach(function(element) {
   console.log(element)
@@ -233,54 +233,54 @@ 
    Array methods
    
 
 
    {{jsxref("Array.concat", "concat()")}} joins two or more arrays and returns a new array.
    
 
-
    let myArray = new Array('1', '2', '3')
+
    let myArray = new Array('1', '2', '3')
 myArray = myArray.concat('a', 'b', 'c')
 // myArray is now ["1", "2", "3", "a", "b", "c"]
 
    
 
 
    {{jsxref("Array.join", "join(delimiter = ',')")}} joins all elements of an array into a string.
    
 
-
    let myArray = new Array('Wind', 'Rain', 'Fire')
+
    let myArray = new Array('Wind', 'Rain', 'Fire')
 let list = myArray.join(' - ') // list is "Wind - Rain - Fire"
 
    
 
 
    {{jsxref("Array.push", "push()")}} adds one or more elements to the end of an array and returns the resulting length of the array.
    
 
-
    let myArray = new Array('1', '2')
+
    let myArray = new Array('1', '2')
 myArray.push('3')  // myArray is now ["1", "2", "3"]
 
    
 
 
    {{jsxref("Array.pop", "pop()")}} removes the last element from an array and returns that element.
    
 
-
    let myArray = new Array('1', '2', '3')
+
    let myArray = new Array('1', '2', '3')
 let last = myArray.pop()
 // myArray is now ["1", "2"], last = "3"
 
    
 
 
    {{jsxref("Array.shift", "shift()")}} removes the first element from an array and returns that element.
    
 
-
    let myArray = new Array('1', '2', '3')
+
    let myArray = new Array('1', '2', '3')
 let first = myArray.shift()
 // myArray is now ["2", "3"], first is "1"
 
    
 
 
    {{jsxref("Array.unshift", "unshift()")}} adds one or more elements to the front of an array and returns the new length of the array.
    
 
-
    let myArray = new Array('1', '2', '3')
+
    let myArray = new Array('1', '2', '3')
 myArray.unshift('4', '5')
 // myArray becomes ["4", "5", "1", "2", "3"]
 
    
 
 
    {{jsxref("Array.slice", "slice(start_index, upto_index)")}} extracts a section of an array and returns a new array.
    
 
-
    let myArray = new Array('a', 'b', 'c', 'd', 'e')
+
    let myArray = new Array('a', 'b', 'c', 'd', 'e')
 myArray = myArray.slice(1, 4)  // starts at index 1 and extracts all elements
                                // until index 3, returning [ "b", "c", "d"]
 
    
 
 
    {{jsxref("Array.splice", "splice(index, count_to_remove, addElement1, addElement2, ...)")}} removes elements from an array and (optionally) replaces them. It returns the items which were removed from the array.
    
 
-
    let myArray = new Array('1', '2', '3', '4', '5')
+
    let myArray = new Array('1', '2', '3', '4', '5')
 myArray.splice(1, 3, 'a', 'b', 'c', 'd')
 // myArray is now ["1", "a", "b", "c", "d", "5"]
 // This code started at index one (or where the "2" was),
@@ -290,14 +290,14 @@ 
    Array methods
    
 
 
    {{jsxref("Array.reverse", "reverse()")}} transposes the elements of an array, in place: the first array element becomes the last and the last becomes the first. It returns a reference to the array.
    
 
-
    let myArray = new Array('1', '2', '3')
+
    let myArray = new Array('1', '2', '3')
 myArray.reverse()
 // transposes the array so that myArray = ["3", "2", "1"]
 
    
 
 
    {{jsxref("Array.sort", "sort()")}} sorts the elements of an array in place, and returns a reference to the array.
    
 
-
    let myArray = new Array('Wind', 'Rain', 'Fire')
+
    let myArray = new Array('Wind', 'Rain', 'Fire')
 myArray.sort()
 // sorts the array so that myArray = ["Fire", "Rain", "Wind"]
 
    
@@ -312,7 +312,7 @@ 
    Array methods
    
 
 
    For instance, the following will sort by the last letter of a string:
    
 
-
    let sortFn = function(a, b) {
+
    let sortFn = function(a, b) {
   if (a[a.length - 1] < b[b.length - 1]) return -1;
   if (a[a.length - 1] > b[b.length - 1]) return 1;
   if (a[a.length - 1] == b[b.length - 1]) return 0;
@@ -328,7 +328,7 @@ 
    Array methods
    
 
 
    {{jsxref("Array.indexOf", "indexOf(searchElement[, fromIndex])")}} searches the array for searchElement and returns the index of the first match.
    
 
-
    let a = ['a', 'b', 'a', 'b', 'a']
+
    let a = ['a', 'b', 'a', 'b', 'a']
 console.log(a.indexOf('b'))     // logs 1
 
 // Now try again, starting from after the last match
@@ -338,7 +338,7 @@ 
    Array methods
    
 
 
    {{jsxref("Array.lastIndexOf", "lastIndexOf(searchElement[, fromIndex])")}} works like indexOf, but starts at the end and searches backwards.
    
 
-
    let a = ['a', 'b', 'c', 'd', 'a', 'b']
+
    let a = ['a', 'b', 'c', 'd', 'a', 'b']
 console.log(a.lastIndexOf('b'))     // logs 5
 
 // Now try again, starting from before the last match
@@ -348,28 +348,28 @@ 
    Array methods
    
 
 
    {{jsxref("Array.forEach", "forEach(callback[, thisObject])")}} executes callback on every array item and returns undefined.
    
 
-
    let a = ['a', 'b', 'c']
+
    let a = ['a', 'b', 'c']
 a.forEach(function(element) { console.log(element) })
 // logs each item in turn
 
    
 
 
    {{jsxref("Array.map", "map(callback[, thisObject])")}} returns a new array of the return value from executing callback on every array item.
    
 
-
    let a1 = ['a', 'b', 'c']
+
    let a1 = ['a', 'b', 'c']
 let a2 = a1.map(function(item) { return item.toUpperCase() })
 console.log(a2) // logs ['A', 'B', 'C']
 
    
 
 
    {{jsxref("Array.filter", "filter(callback[, thisObject])")}} returns a new array containing the items for which callback returned true.
    
 
-
    let a1 = ['a', 10, 'b', 20, 'c', 30]
+
    let a1 = ['a', 10, 'b', 20, 'c', 30]
 let a2 = a1.filter(function(item) { return typeof item === 'number'; })
 console.log(a2)  // logs [10, 20, 30]
 
    
 
 
    {{jsxref("Array.every", "every(callback[, thisObject])")}} returns true if callback returns true for every item in the array.
    
 
-
    function isNumber(value) {
+
    function isNumber(value) {
   return typeof value === 'number'
 }
 let a1 = [1, 2, 3]
@@ -380,7 +380,7 @@ 
    Array methods
    
 
 
    {{jsxref("Array.some", "some(callback[, thisObject])")}} returns true if callback returns true for at least one item in the array.
    
 
-
    function isNumber(value) {
+
    function isNumber(value) {
   return typeof value === 'number'
 }
 let a1 = [1, 2, 3]
@@ -399,7 +399,7 @@ 
    Array methods
    
 
 
    If callback needs access to the index of the item being processed, on access to the entire array, they are available as optional parameters.
    
 
-
    let a = [10, 20, 30]
+
    let a = [10, 20, 30]
 let total = a.reduce(function(accumulator, currentValue) { return accumulator + currentValue }, 0)
 console.log(total) // Prints 60
 
    
@@ -414,7 +414,7 @@ 
    Multi-dimensional arrays
    
 
 
    The following code creates a two-dimensional array.
    
 
-
    let a = new Array(4)
+
    let a = new Array(4)
 for (let i = 0; i < 4; i++) {
   a[i] = new Array(4)
   for (let j = 0; j < 4; j++) {
@@ -425,7 +425,7 @@ 
    Multi-dimensional arrays
    
 
 
    This example creates an array with the following rows:
    
 
-
    Row 0: [0, 0] [0, 1] [0, 2] [0, 3]
+
    Row 0: [0, 0] [0, 1] [0, 2] [0, 3]
 Row 1: [1, 0] [1, 1] [1, 2] [1, 3]
 Row 2: [2, 0] [2, 1] [2, 2] [2, 3]
 Row 3: [3, 0] [3, 1] [3, 2] [3, 3]
@@ -435,7 +435,7 @@ 
    Using arrays to store other prop
 
 
    Arrays can also be used like objects, to store related information.
    
 
-
    const arr = [1, 2, 3];
+
    const arr = [1, 2, 3];
 arr.property = "value";
 console.log(arr.property);  // Logs "value"
 
    
@@ -450,7 +450,7 @@ 
    Working with array-like objects
    
 
 
    Array methods cannot be called directly on array-like objects.
    
 
-
    function printArguments() {
+
    function printArguments() {
   arguments.forEach(function(item) {  // TypeError: arguments.forEach is not a function
     console.log(item);
   });
@@ -459,7 +459,7 @@ 
    Working with array-like objects
    
 
 
    But you can call them indirectly using {{jsxref("Global_Objects/Function/call","Function.prototype.call()")}}.
    
 
-
    function printArguments() {
+
    function printArguments() {
   Array.prototype.forEach.call(arguments, function(item) {
     console.log(item);
   });
@@ -468,7 +468,7 @@ 
    Working with array-like objects
    
 
 
    Array prototype methods can be used on strings as well, since they provide sequential access to their characters in a similar way to arrays:
    
 
-
    Array.prototype.forEach.call('a string', function(chr) {
+
    Array.prototype.forEach.call('a string', function(chr) {
   console.log(chr)
 })
 
    
diff --git a/files/en-us/web/javascript/guide/introduction/index.html b/files/en-us/web/javascript/guide/introduction/index.html
index d84781015290e83..438eec7cee90882 100644
--- a/files/en-us/web/javascript/guide/introduction/index.html
+++ b/files/en-us/web/javascript/guide/introduction/index.html
@@ -119,7 +119,7 @@ 
    Single-line input in the Web Conso
 
 
    The console works the exact same way as eval: the last expression entered is returned. For the sake of simplicity, it can be imagined that every time something is entered into the console, it is actually surrounded by console.log around eval, like so:
    
 
-
    function greetMe(yourName) {
+
    function greetMe(yourName) {
   alert("Hello " + yourName)
 }
 console.log(eval('3 + 5'))
@@ -133,7 +133,7 @@ 
    Hello world
    
 
 
    To get started with writing JavaScript, open the Web Console in multi-line mode, and write your first "Hello world" JavaScript code:
    
 
-
    (function(){
+
    (function(){
   "use strict";
   /* Start of your code */
   function greetMe(yourName) {
diff --git a/files/en-us/web/javascript/guide/iterators_and_generators/index.html b/files/en-us/web/javascript/guide/iterators_and_generators/index.html
index 0c03825983c5afc..c465f20cefc1686 100644
--- a/files/en-us/web/javascript/guide/iterators_and_generators/index.html
+++ b/files/en-us/web/javascript/guide/iterators_and_generators/index.html
@@ -43,7 +43,7 @@ 
    Iterators
    
 
 
    Here is an example which can do just that. It allows creation of a simple range iterator which defines a sequence of integers from start (inclusive) to end (exclusive) spaced step apart. Its final return value is the size of the sequence it created, tracked by the variable iterationCount.
    
 
-
    function makeRangeIterator(start = 0, end = Infinity, step = 1) {
+
    function makeRangeIterator(start = 0, end = Infinity, step = 1) {
     let nextIndex = start;
     let iterationCount = 0;
 
@@ -65,7 +65,7 @@ 
    Iterators
    
 
 
    Using the iterator then looks like this:
    
 
-
    const it = makeRangeIterator(1, 10, 2);
+
    const it = makeRangeIterator(1, 10, 2);
 
 let result = it.next();
 while (!result.done) {
@@ -91,7 +91,7 @@ 
    Generator functions
    
 
 
    We can now adapt the example from above. The behavior of this code is identical, but the implementation is much easier to write and read.
    
 
-
    function* makeRangeIterator(start = 0, end = 100, step = 1) {
+
    function* makeRangeIterator(start = 0, end = 100, step = 1) {
     let iterationCount = 0;
     for (let i = start; i < end; i += step) {
         iterationCount++;
@@ -110,7 +110,7 @@ 
    Iterables
    
 
 
    Iterables which can iterate only once (such as Generators) customarily return this from their @@iterator method, whereas iterables which can be iterated many times must return a new iterator on each invocation of @@iterator.
    
 
-
    function* makeIterator() {
+
    function* makeIterator() {
     yield 1;
     yield 2;
 }
@@ -141,7 +141,7 @@ 
    User-defined iterables
    
 
 
    You can make your own iterables like this:
    
 
-
    const myIterable = {
+
    const myIterable = {
     *[Symbol.iterator]() {
         yield 1;
         yield 2;
@@ -169,7 +169,7 @@ 
    Syntaxes expecting iterables
    
 
 
    Some statements and expressions expect iterables. For example: the {{jsxref("Statements/for...of","for-of")}} loops, {{jsxref("Operators/yield*","yield*")}}.
    
 
-
    for (let value of ['a', 'b', 'c']) {
+
    for (let value of ['a', 'b', 'c']) {
     console.log(value);
 }
 // "a"
@@ -204,7 +204,7 @@ 
    Advanced generators
    
 
 
    Here is the fibonacci generator using next(x) to restart the sequence:
    
 
-
    function* fibonacci() {
+
    function* fibonacci() {
   let current = 0;
   let next = 1;
   while (true) {
diff --git a/files/en-us/web/javascript/guide/loops_and_iteration/index.html b/files/en-us/web/javascript/guide/loops_and_iteration/index.html
index e9903287e1b0867..16a448873556b6f 100644
--- a/files/en-us/web/javascript/guide/loops_and_iteration/index.html
+++ b/files/en-us/web/javascript/guide/loops_and_iteration/index.html
@@ -20,7 +20,7 @@
   take X steps in one direction, then Y steps in another. For example,
   the idea "Go five steps to the east" could be expressed this way as a loop:
    
 
-
    for (let step = 0; step < 5; step++) {
+
    for (let step = 0; step < 5; step++) {
   // Runs 5 times, with values of step 0 through 4.
   console.log('Walking east one step');
 }
@@ -55,7 +55,7 @@ 
    for statement
    
 
 
    A for statement looks as follows:
    
 
-
    for ([initialExpression]; [conditionExpression]; [incrementExpression])
+
    for ([initialExpression]; [conditionExpression]; [incrementExpression])
   statement
 
    
 
@@ -89,7 +89,7 @@ 
    Example
    
   element, performs the succeeding if statement, and increments
   i by after each pass through the loop.
    
 
-
    <form name="selectForm">
+
    <form name="selectForm">
   <p>
     <label for="musicTypes">Choose some music types, then click the button below:</label>
     <select id="musicTypes" name="musicTypes" multiple="multiple">
@@ -130,7 +130,7 @@ 
    do...while statement
    
 
 
    A do...while statement looks as follows:
    
 
-
    do
+
    do
   statement
 while (condition);
 
    
@@ -149,7 +149,7 @@ 
    Example
    
 
    In the following example, the do loop iterates at least once and
   reiterates until i is no longer less than 5.
    
 
-
    let i = 0;
+
    let i = 0;
 do {
   i += 1;
   console.log(i);
@@ -161,7 +161,7 @@ 
    while statement
    
   specified condition evaluates to true. A while statement looks
   as follows:
    
 
-
    while (condition)
+
    while (condition)
   statement
 
    
 
@@ -183,7 +183,7 @@ 
    Example 1
    
 
    The following while loop iterates as long as n is
   less than 3:
    
 
-
    let n = 0;
+
    let n = 0;
 let x = 0;
 while (n < 3) {
   n++;
@@ -214,7 +214,7 @@ 
    Example 2
    
   following while loop execute forever because the condition never becomes
   false:
    
 
-
    // Infinite loops are bad!
+
    // Infinite loops are bad!
 while (true) {
   console.log('Hello, world!');
 }
    
@@ -228,7 +228,7 @@ 
    labeled statement
    
 
 
    The syntax of the labeled statement looks like the following:
    
 
-
    label :
+
    label :
    statement
 
    
 
@@ -241,7 +241,7 @@ 
    Example
    
 
    In this example, the label markLoop identifies a while loop.
 
    
 
-
    markLoop:
+
    markLoop:
 while (theMark === true) {
    doSomething();
 }
    
@@ -261,7 +261,7 @@ 
    break statement
    
 
 
    The syntax of the break statement looks like this:
    
 
-
    break;
+
    break;
 break [label];
 
    
 
@@ -277,7 +277,7 @@ 
    Example 1
    
 
    The following example iterates through the elements in an array until it finds the
   index of an element whose value is theValue:
    
 
-
    for (let i = 0; i < a.length; i++) {
+
    for (let i = 0; i < a.length; i++) {
   if (a[i] === theValue) {
     break;
   }
@@ -286,7 +286,7 @@ 
    Example 1
    
 
    Example 2: Breaking to a label
 
    
 
-
    let x = 0;
+
    let x = 0;
 let z = 0;
 labelCancelLoops: while (true) {
   console.log('Outer loops: ' + x);
@@ -324,7 +324,7 @@ 
    continue statement
    
 
 
    The syntax of the continue statement looks like the following:
    
 
-
    continue [label];
+
    continue [label];
 
    
 
 
    Example 1
    
@@ -334,7 +334,7 @@ 
    Example 1
    
   n takes on the values 1, 3, 7, and
   12.
    
 
-
    let i = 0;
+
    let i = 0;
 let n = 0;
 while (i < 5) {
   i++;
@@ -374,7 +374,7 @@ 
    Example 2
    
 
    If continue had a label of checkiandj, the program
   would continue at the top of the checkiandj statement.
    
 
-
    let i = 0;
+
    let i = 0;
 let j = 10;
 checkiandj:
   while (i < 4) {
@@ -400,7 +400,7 @@ 
    for...in statement
    
   JavaScript executes the specified statements. A for...in statement looks as
   follows:
    
 
-
    for (variable in object)
+
    for (variable in object)
   statement
 
    
 
@@ -410,7 +410,7 @@ 
    Example
    
   iterates over all the object's properties and returns a string that lists the property
   names and their values.
    
 
-
    function dump_props(obj, obj_name) {
+
    function dump_props(obj, obj_name) {
   let result = '';
   for (let i in obj) {
     result += obj_name + '.' + i + ' = ' + obj[i] + '<br>';
@@ -423,7 +423,7 @@ 
    Example
    
 
    For an object car with properties make and
   model, result would be:
    
 
-
    car.make = Ford
+
    car.make = Ford
 car.model = Mustang
 
    
 
@@ -447,7 +447,7 @@ 
    for...of statement
    
   iteration hook with statements to be executed for the value of each distinct property.
 
    
 
-
    for (variable of object)
+
    for (variable of object)
   statement
 
    
 
@@ -455,7 +455,7 @@ 
    for...of statement
    
   {{jsxref("statements/for...in","for...in")}} loop. While for...in iterates
   over property names, for...of iterates over property values:
    
 
-
    const arr = [3, 5, 7];
+
    const arr = [3, 5, 7];
 arr.foo = 'hello';
 
 for (let i in arr) {
diff --git a/files/en-us/web/javascript/guide/modules/index.html b/files/en-us/web/javascript/guide/modules/index.html
index b62b644d2c940a4..dfa22827dd5697e 100644
--- a/files/en-us/web/javascript/guide/modules/index.html
+++ b/files/en-us/web/javascript/guide/modules/index.html
@@ -46,7 +46,7 @@ 
    Basic example structure
    
 
 
    In our first example (see basic-modules) we have a file structure as follows:
    
 
-
    index.html
+
    index.html
 main.js
 modules/
     canvas.js
@@ -106,7 +106,7 @@ 
    Exporting module features
    
 
 
    The easiest way to use it is to place it in front of any items you want exported out of the module, for example:
    
 
-
    export const name = 'square';
+
    export const name = 'square';
 
 export function draw(ctx, length, x, y, color) {
   ctx.fillStyle = color;
@@ -124,13 +124,13 @@ 
    Exporting module features
    
 
 
    A more convenient way of exporting all the items you want to export is to use a single export statement at the end of your module file, followed by a comma-separated list of the features you want to export wrapped in curly braces. For example:
    
 
-
    export { name, draw, reportArea, reportPerimeter };
    
+
    export { name, draw, reportArea, reportPerimeter };
    
 
 
    Importing features into your script
    
 
 
    Once you've exported some features out of your module, you need to import them into your script to be able to use them. The simplest way to do this is as follows:
    
 
-
    import { name, draw, reportArea, reportPerimeter } from './modules/square.js';
    
+
    import { name, draw, reportArea, reportPerimeter } from './modules/square.js';
    
 
 
    You use the {{JSxRef("Statements/import", "import")}} statement, followed by a comma-separated list of the features you want to import wrapped in curly braces, followed by the keyword from, followed by the path to the module file — a path relative to the site root, which for our basic-modules example would be /js-examples/modules/basic-modules.
    
 
@@ -138,11 +138,11 @@ 
    Importing features into your script
 
 
    So for example:
    
 
-
    /js-examples/modules/basic-modules/modules/square.js
    
+
    /js-examples/modules/basic-modules/modules/square.js
    
 
 
    becomes
    
 
-
    ./modules/square.js
    
+
    ./modules/square.js
    
 
 
    You can see such lines in action in main.js.
    
 
@@ -152,7 +152,7 @@ 
    Importing features into your script
 
 
    Once you've imported the features into your script, you can use them just like they were defined inside the same file. The following is found in main.js, below the import lines:
    
 
-
    let myCanvas = create('myCanvas', document.body, 480, 320);
+
    let myCanvas = create('myCanvas', document.body, 480, 320);
 let reportList = createReportList(myCanvas.id);
 
 let square1 = draw(myCanvas.ctx, 50, 50, 100, 'blue');
@@ -170,11 +170,11 @@ 
    Applying the module to your HTML
    
 
 
    First of all, you need to include type="module" in the <script> element, to declare this script as a module. To import the main.js script, we use this:
    
 
-
    <script type="module" src="main.js"></script>
    
+
    <script type="module" src="main.js"></script>
    
 
 
    You can also embed the module's script directly into the HTML file by placing the JavaScript code within the body of the <script> element:
    
 
-
    <script type="module">
+
    <script type="module">
   /* JavaScript module code here */
 </script>
    
 
@@ -200,23 +200,23 @@ 
    Default exports versus named expor
 
 
    Let's look at an example as we explain how it works. In our basic-modules square.js you can find a function called randomSquare() that creates a square with a random color, size, and position. We want to export this as our default, so at the bottom of the file we write this:
    
 
-
    export default randomSquare;
    
+
    export default randomSquare;
    
 
 
    Note the lack of curly braces.
    
 
 
    We could instead prepend export default onto the function and define it as an anonymous function, like this:
    
 
-
    export default function(ctx) {
+
    export default function(ctx) {
   ...
 }
    
 
 
    Over in our main.js file, we import the default function using this line:
    
 
-
    import randomSquare from './modules/square.js';
    
+
    import randomSquare from './modules/square.js';
    
 
 
    Again, note the lack of curly braces. This is because there is only one default export allowed per module, and we know that randomSquare is it. The above line is basically shorthand for:
    
 
-
    import {default as randomSquare} from './modules/square.js';
    
+
    import {default as randomSquare} from './modules/square.js';
    
 
 
    
 
    Note: The as syntax for renaming exported items is explained below in the Renaming imports and exports section.
    
@@ -234,7 +234,7 @@ 
    Renaming imports and exports
    
 
 
    So for example, both of the following would do the same job, albeit in a slightly different way:
    
 
-
    // inside module.js
+
    // inside module.js
 export {
   function1 as newFunctionName,
   function2 as anotherNewFunctionName
@@ -243,7 +243,7 @@ 
    Renaming imports and exports
    
 // inside main.js
 import { newFunctionName, anotherNewFunctionName } from './modules/module.js';
    
 
-
    // inside module.js
+
    // inside module.js
 export { function1, function2 };
 
 // inside main.js
@@ -254,11 +254,11 @@ 
    Renaming imports and exports
    
 
 
    Inside each of these modules, we've got features with the same names being exported, and therefore each has the same export statement at the bottom:
    
 
-
    export { name, draw, reportArea, reportPerimeter };
    
+
    export { name, draw, reportArea, reportPerimeter };
    
 
 
    When importing these into main.js, if we tried to use
    
 
-
    import { name, draw, reportArea, reportPerimeter } from './modules/square.js';
+
    import { name, draw, reportArea, reportPerimeter } from './modules/square.js';
 import { name, draw, reportArea, reportPerimeter } from './modules/circle.js';
 import { name, draw, reportArea, reportPerimeter } from './modules/triangle.js';
    
 
@@ -266,7 +266,7 @@ 
    Renaming imports and exports
    
 
 
    Instead we need to rename the imports so that they are unique:
    
 
-
    import { name as squareName,
+
    import { name as squareName,
          draw as drawSquare,
          reportArea as reportSquareArea,
          reportPerimeter as reportSquarePerimeter } from './modules/square.js';
@@ -283,13 +283,13 @@ 
    Renaming imports and exports
    
 
 
    Note that you could solve the problem in the module files instead, e.g.
    
 
-
    // in square.js
+
    // in square.js
 export { name as squareName,
          draw as drawSquare,
          reportArea as reportSquareArea,
          reportPerimeter as reportSquarePerimeter };
    
 
-
    // in main.js
+
    // in main.js
 import { squareName, drawSquare, reportSquareArea, reportSquarePerimeter } from './modules/square.js';
    
 
 
    And it would work just the same. What style you use is up to you, however it arguably makes more sense to leave your module code alone, and make the changes in the imports. This especially makes sense when you are importing from third party modules that you don't have any control over.
    
@@ -298,21 +298,21 @@ 
    Creating a module object
    
 
 
    The above method works OK, but it's a little messy and longwinded. An even better solution is to import each module's features inside a module object. The following syntax form does that:
    
 
-
    import * as Module from './modules/module.js';
    
+
    import * as Module from './modules/module.js';
    
 
 
    This grabs all the exports available inside module.js, and makes them available as members of an object Module, effectively giving it its own namespace. So for example:
    
 
-
    Module.function1()
+
    Module.function1()
 Module.function2()
 etc.
    
 
 
    Again, let's look at a real example. If you go to our module-objects directory, you'll see the same example again, but rewritten to take advantage of this new syntax. In the modules, the exports are all in the following simple form:
    
 
-
    export { name, draw, reportArea, reportPerimeter };
    
+
    export { name, draw, reportArea, reportPerimeter };
    
 
 
    The imports on the other hand look like this:
    
 
-
    import * as Canvas from './modules/canvas.js';
+
    import * as Canvas from './modules/canvas.js';
 
 import * as Square from './modules/square.js';
 import * as Circle from './modules/circle.js';
@@ -320,7 +320,7 @@ 
    Creating a module object
    
 
 
    In each case, you can now access the module's imports underneath the specified object name, for example:
    
 
-
    let square1 = Square.draw(myCanvas.ctx, 50, 50, 100, 'blue');
+
    let square1 = Square.draw(myCanvas.ctx, 50, 50, 100, 'blue');
 Square.reportArea(square1.length, reportList);
 Square.reportPerimeter(square1.length, reportList);
    
 
@@ -332,7 +332,7 @@ 
    Modules and classes
    
 
 
    You can see an example of our shape drawing module rewritten with ES classes in our classes directory. As an example, the square.js file now contains all its functionality in a single class:
    
 
-
    class Square {
+
    class Square {
   constructor(ctx, listId, length, x, y, color) {
     ...
   }
@@ -346,15 +346,15 @@ 
    Modules and classes
    
 
 
    which we then export:
    
 
-
    export { Square };
    
+
    export { Square };
    
 
 
    Over in main.js, we import it like this:
    
 
-
    import { Square } from './modules/square.js';
    
+
    import { Square } from './modules/square.js';
    
 
 
    And then use the class to draw our square:
    
 
-
    let square1 = new Square(myCanvas.ctx, myCanvas.listId, 50, 50, 100, 'blue');
+
    let square1 = new Square(myCanvas.ctx, myCanvas.listId, 50, 50, 100, 'blue');
 square1.draw();
 square1.reportArea();
 square1.reportPerimeter();
    
@@ -363,12 +363,12 @@ 
    Aggregating modules
    
 
 
    There will be times where you'll want to aggregate modules together. You might have multiple levels of dependencies, where you want to simplify things, combining several submodules into one parent module. This is possible using export syntax of the following forms in the parent module:
    
 
-
    export * from 'x.js'
+
    export * from 'x.js'
 export { name } from 'x.js'
    
 
 
    For an example, see our module-aggregation directory. In this example (based on our earlier classes example) we've got an extra module called shapes.js, which aggregates all the functionality from circle.js, square.js, and triangle.js together. We've also moved our submodules inside a subdirectory inside the modules directory called shapes. So the module structure in this example is:
    
 
-
    modules/
+
    modules/
   canvas.js
   shapes.js
   shapes/
@@ -378,11 +378,11 @@ 
    Aggregating modules
    
 
 
    In each of the submodules, the export is of the same form, e.g.
    
 
-
    export { Square };
    
+
    export { Square };
    
 
 
    Next up comes the aggregation part. Inside shapes.js, we include the following lines:
    
 
-
    export { Square } from './shapes/square.js';
+
    export { Square } from './shapes/square.js';
 export { Triangle } from './shapes/triangle.js';
 export { Circle } from './shapes/circle.js';
    
 
@@ -394,13 +394,13 @@ 
    Aggregating modules
    
 
 
    So now in the main.js file, we can get access to all three module classes by replacing
    
 
-
    import { Square } from './modules/square.js';
+
    import { Square } from './modules/square.js';
 import { Circle } from './modules/circle.js';
 import { Triangle } from './modules/triangle.js';
    
 
 
    with the following single line:
    
 
-
    import { Square, Circle, Triangle } from './modules/shapes.js';
    
+
    import { Square, Circle, Triangle } from './modules/shapes.js';
    
 
 
    Dynamic module loading
    
 
@@ -408,7 +408,7 @@ 
    Dynamic module loading
    
 
 
    This new functionality allows you to call {{JSxRef("Statements/import", "import()", "#Dynamic_Imports")}} as a function, passing it the path to the module as a parameter. It returns a {{JSxRef("Promise")}}, which fulfills with a module object (see Creating a module object) giving you access to that object's exports, e.g.
    
 
-
    import('./modules/myModule.js')
+
    import('./modules/myModule.js')
   .then((module) => {
     // Do something with the module.
   });
    
@@ -419,11 +419,11 @@ 
    Dynamic module loading
    
 
 
    Over in main.js we've grabbed a reference to each button using a Document.querySelector() call, for example:
    
 
-
    let squareBtn = document.querySelector('.square');
    
+
    let squareBtn = document.querySelector('.square');
    
 
 
    We then attach an event listener to each button so that when pressed, the relevant module is dynamically loaded and used to draw the shape:
    
 
-
    squareBtn.addEventListener('click', () => {
+
    squareBtn.addEventListener('click', () => {
   import('./modules/square.js').then((Module) => {
     let square1 = new Module.Square(myCanvas.ctx, myCanvas.listId, 50, 50, 100, 'blue');
     square1.draw();
@@ -443,7 +443,7 @@ 
    Top level await
    
 
    Firstly we'll declare our color palette in a separate colors.json file:
    
 
 
-
    +
     {
   "yellow": "#F4D03F",
   "green": "#52BE80",
@@ -455,7 +455,7 @@ 
    Top level await
    
 
 
    Then we'll create a module called getColors.js which uses a fetch request to load the colors.json file and return the data as an object.
    
 
-
    +
     // fetch request
 const colors = fetch('../data/colors.json')
 	.then(response => response.json());
@@ -469,7 +469,7 @@ 
    Top level await
    
 
 
    Let's include this module in our main.js file:
    
 
-
    +
     import colors from './modules/getColors.js';
 import { Canvas } from './modules/canvas.js';
 
@@ -481,7 +481,7 @@ 
    Top level await
    
 
 
    We'll use colors instead of the previously used strings when calling our shape functions:
    
 
-
    +
     ...
 
 let square1 = new Module.Square(myCanvas.ctx, myCanvas.listId, 50, 50, 100, colors.blue);
diff --git a/files/en-us/web/javascript/guide/numbers_and_dates/index.html b/files/en-us/web/javascript/guide/numbers_and_dates/index.html
index 57e4751294d5be1..7a29d76b0d3622e 100644
--- a/files/en-us/web/javascript/guide/numbers_and_dates/index.html
+++ b/files/en-us/web/javascript/guide/numbers_and_dates/index.html
@@ -33,7 +33,7 @@ 
    Numbers
    
 
 
    Decimal numbers
    
 
-
    1234567890
+
    1234567890
 42
 
 // Caution when using leading zeros:
@@ -48,7 +48,7 @@ 
    Binary numbers
    
 
 
    Binary number syntax uses a leading zero followed by a lowercase or uppercase Latin letter "B" (0b or 0B). If the digits after the 0b are not 0 or 1, the following {{jsxref("SyntaxError")}} is thrown: "Missing binary digits after 0b".
    
 
-
    var FLT_SIGNBIT  = 0b10000000000000000000000000000000; // 2147483648
+
    var FLT_SIGNBIT  = 0b10000000000000000000000000000000; // 2147483648
 var FLT_EXPONENT = 0b01111111100000000000000000000000; // 2139095040
 var FLT_MANTISSA = 0B00000000011111111111111111111111; // 8388607
    
 
@@ -56,27 +56,27 @@ 
    Octal numbers
    
 
 
    Octal number syntax uses a leading zero. If the digits after the 0 are outside the range 0 through 7, the number will be interpreted as a decimal number.
    
 
-
    var n = 0755; // 493
+
    var n = 0755; // 493
 var m = 0644; // 420
 
    
 
 
    Strict mode in ECMAScript 5 forbids octal syntax. Octal syntax isn't part of ECMAScript 5, but it's supported in all browsers by prefixing the octal number with a zero: 0644 === 420 and "\045" === "%". In ECMAScript 2015, octal numbers are supported if they are prefixed with 0o, e.g.:
    
 
-
    var a = 0o10; // ES2015: 8
+
    var a = 0o10; // ES2015: 8
 
    
 
 
    Hexadecimal numbers
    
 
 
    Hexadecimal number syntax uses a leading zero followed by a lowercase or uppercase Latin letter "X" (0x or 0X). If the digits after 0x are outside the range (0123456789ABCDEF), the following {{jsxref("SyntaxError")}} is thrown: "Identifier starts immediately after numeric literal".
    
 
-
    0xFFFFFFFFFFFFFFFFF // 295147905179352830000
+
    0xFFFFFFFFFFFFFFFFF // 295147905179352830000
 0x123456789ABCDEF   // 81985529216486900
 0XA                 // 10
 
    
 
 
    Exponentiation
    
 
-
    1E3   // 1000
+
    1E3   // 1000
 2e6   // 2000000
 0.1e2 // 10
    
 
@@ -84,7 +84,7 @@ 
    Number object
    
 
 
    The built-in {{jsxref("Number")}} object has properties for numerical constants, such as maximum value, not-a-number, and infinity. You cannot change the values of these properties and you use them as follows:
    
 
-
    var biggestNum = Number.MAX_VALUE;
+
    var biggestNum = Number.MAX_VALUE;
 var smallestNum = Number.MIN_VALUE;
 var infiniteNum = Number.POSITIVE_INFINITY;
 var negInfiniteNum = Number.NEGATIVE_INFINITY;
@@ -207,12 +207,12 @@ 
    Math object
    
 
 
    The built-in {{jsxref("Math")}} object has properties and methods for mathematical constants and functions. For example, the Math object's PI property has the value of pi (3.141...), which you would use in an application as
    
 
-
    Math.PI
+
    Math.PI
 
    
 
 
    Similarly, standard mathematical functions are methods of Math. These include trigonometric, logarithmic, exponential, and other functions. For example, if you want to use the trigonometric function sine, you would write
    
 
-
    Math.sin(1.56)
+
    Math.sin(1.56)
 
    
 
 
    Note that all trigonometric methods of Math take arguments in radians.
    
@@ -299,7 +299,7 @@ 
    Date object
    
 
 
    To create a Date object:
    
 
-
    var dateObjectName = new Date([parameters]);
+
    var dateObjectName = new Date([parameters]);
 
    
 
 
    where dateObjectName is the name of the Date object being created; it can be a new object or a property of an existing object.
    
@@ -339,7 +339,7 @@ 
    Methods of the Date< object
    
 
 
    For example, suppose you define the following date:
    
 
-
    var Xmas95 = new Date('December 25, 1995');
+
    var Xmas95 = new Date('December 25, 1995');
 
    
 
 
    Then Xmas95.getMonth() returns 11, and Xmas95.getFullYear() returns 1995.
    
@@ -348,7 +348,7 @@ 
    Methods of the Date< object
    
 
 
    For example, the following code displays the number of days left in the current year:
    
 
-
    var today = new Date();
+
    var today = new Date();
 var endYear = new Date(1995, 11, 31, 23, 59, 59, 999); // Set day and month
 endYear.setFullYear(today.getFullYear()); // Set year to this year
 var msPerDay = 24 * 60 * 60 * 1000; // Number of milliseconds per day
@@ -360,7 +360,7 @@ 
    Methods of the Date< object
    
 
 
    The parse method is useful for assigning values from date strings to existing Date objects. For example, the following code uses parse and setTime to assign a date value to the IPOdate object:
    
 
-
    var IPOdate = new Date();
+
    var IPOdate = new Date();
 IPOdate.setTime(Date.parse('Aug 9, 1995'));
 
    
 
@@ -368,7 +368,7 @@ 
    Example
    
 
 
    In the following example, the function JSClock() returns the time in the format of a digital clock.
    
 
-
    function JSClock() {
+
    function JSClock() {
   var time = new Date();
   var hour = time.getHours();
   var minute = time.getMinutes();
diff --git a/files/en-us/web/javascript/guide/regular_expressions/character_classes/index.html b/files/en-us/web/javascript/guide/regular_expressions/character_classes/index.html
index 38d441d9540082d..56885f7fa794017 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/character_classes/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/character_classes/index.html
@@ -148,7 +148,7 @@ 
    Examples
    
 
 
    Looking for a series of digits
    
 
-
    var randomData = "015 354 8787 687351 3512 8735";
+
    var randomData = "015 354 8787 687351 3512 8735";
 var regexpFourDigits = /\b\d{4}\b/g;
 // \b indicates a boundary (i.e. do not start matching in the middle of a word)
 // \d{4} indicates a digit, four times
@@ -160,7 +160,7 @@ 
    Looking for a series of digits
    
 
 
    Looking for a word (from the latin alphabet) starting with A
    
 
-
    var aliceExcerpt = "I’m sure I’m not Ada,’ she said, ‘for her hair goes in such long ringlets, and mine doesn’t go in ringlets at all.";
+
    var aliceExcerpt = "I’m sure I’m not Ada,’ she said, ‘for her hair goes in such long ringlets, and mine doesn’t go in ringlets at all.";
 var regexpWordStartingWithA = /\b[aA]\w+/g;
 // \b indicates a boundary (i.e. do not start matching in the middle of a word)
 // [aA] indicates the letter a or A
@@ -174,7 +174,7 @@ 
    Looking for a word (from Uni
 
 
    Instead of the Latin alphabet, we can use a range of Unicode characters to identify a word (thus being able to deal with text in other languages like Russian or Arabic). The "Basic Multilingual Plane" of Unicode contains most of the characters used around the world and we can use character classes and ranges to match words written with those characters.
    
 
-
    var nonEnglishText = "Приключения Алисы в Стране чудес";
+
    var nonEnglishText = "Приключения Алисы в Стране чудес";
 var regexpBMPWord = /([\u0000-\u0019\u0021-\uFFFF])+/gu;
 // BMP goes through U+0000 to U+FFFF but space is U+0020
 
diff --git a/files/en-us/web/javascript/guide/regular_expressions/cheatsheet/index.html b/files/en-us/web/javascript/guide/regular_expressions/cheatsheet/index.html
index 44912098e16f2d2..4e4abf38a43b483 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/cheatsheet/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/cheatsheet/index.html
@@ -408,7 +408,7 @@ 
    If you are looking to contribute to this document, please also edit the original article
    
 
-
    // Non-binary values
+
    // Non-binary values
 \p{UnicodePropertyValue}
 \p{UnicodePropertyName=UnicodePropertyValue}
 
diff --git a/files/en-us/web/javascript/guide/regular_expressions/groups_and_ranges/index.html b/files/en-us/web/javascript/guide/regular_expressions/groups_and_ranges/index.html
index d2be3cd527e3bf6..8111e4689751572 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/groups_and_ranges/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/groups_and_ranges/index.html
@@ -109,7 +109,7 @@ 
    Examples
    
 
 
    Counting vowels
    
 
-
    var aliceExcerpt = "There was a long silence after this, and Alice could only hear whispers now and then.";
+
    var aliceExcerpt = "There was a long silence after this, and Alice could only hear whispers now and then.";
 var regexpVowels = /[aeiouy]/g;
 
 console.log("Number of vowels:", aliceExcerpt.match(regexpVowels).length);
@@ -117,7 +117,7 @@ 
    Counting vowels
    
 
 
    Using groups
    
 
-
    let personList = `First_Name: John, Last_Name: Doe
+
    let personList = `First_Name: John, Last_Name: Doe
 First_Name: Jane, Last_Name: Smith`;
 
 let regexpNames =  /First_Name: (\w+), Last_Name: (\w+)/mg;
@@ -129,7 +129,7 @@ 
    Using groups
    
 
 
    Using named groups
    
 
-
    let personList = `First_Name: John, Last_Name: Doe
+
    let personList = `First_Name: John, Last_Name: Doe
 First_Name: Jane, Last_Name: Smith`;
 
 let regexpNames =  /First_Name: (?<firstname>\w+), Last_Name: (?<lastname>\w+)/mg;
diff --git a/files/en-us/web/javascript/guide/regular_expressions/index.html b/files/en-us/web/javascript/guide/regular_expressions/index.html
index 11f6a275c5e6044..2ed27141a609513 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/index.html
@@ -22,7 +22,7 @@ 
    Creating a regular expression
    
  
  • 
   
    Using a regular expression literal, which consists of a pattern enclosed between slashes, as follows:
    
 
-  
    let re = /ab+c/;
+  
    let re = /ab+c/;
 
    
 
   
    Regular expression literals provide compilation of the regular expression when the script is loaded. If the regular expression remains constant, using this can improve performance.
    
@@ -30,7 +30,7 @@ 
    Creating a regular expression
    
  
  • 
   
    Or calling the constructor function of the {{jsxref("RegExp")}} object, as follows:
    
 
-  
    let re = new RegExp('ab+c');
+  
    let re = new RegExp('ab+c');
 
    
 
   
    Using the constructor function provides runtime compilation of the regular expression. Use the constructor function when you know the regular expression pattern will be changing, or you don't know the pattern and are getting it from another source, such as user input.
    
@@ -126,7 +126,7 @@ 
    Escaping
    
 
 
    If escape strings are not already part of your pattern you can add them using {{jsxref('String.replace')}}:
    
 
-
    function escapeRegExp(string) {
+
    function escapeRegExp(string) {
   return string.replace(/[.*+?^${}()|[\]\\]/g, '\\$&'); // $& means the whole matched string
 }
 
    
@@ -191,13 +191,13 @@ 
    Using regular expressions in Ja
 
 
    In the following example, the script uses the exec() method to find a match in a string.
    
 
-
    var myRe = /d(b+)d/g;
+
    var myRe = /d(b+)d/g;
 var myArray = myRe.exec('cdbbdbsbz');
 
    
 
 
    If you do not need to access the properties of the regular expression, an alternative way of creating myArray is with this script:
    
 
-
    var myArray = /d(b+)d/g.exec('cdbbdbsbz');
+
    var myArray = /d(b+)d/g.exec('cdbbdbsbz');
     // similar to "cdbbdbsbz".match(/d(b+)d/g); however,
     // "cdbbdbsbz".match(/d(b+)d/g) outputs Array [ "dbbd" ], while
     // /d(b+)d/g.exec('cdbbdbsbz') outputs Array [ 'dbbd', 'bb', index: 1, input: 'cdbbdbsbz' ].
@@ -207,7 +207,7 @@ 
    Using regular expressions in Ja
 
 
    If you want to construct the regular expression from a string, yet another alternative is this script:
    
 
-
    var myRe = new RegExp('d(b+)d', 'g');
+
    var myRe = new RegExp('d(b+)d', 'g');
 var myArray = myRe.exec('cdbbdbsbz');
 
    
 
@@ -261,7 +261,7 @@ 
    Using regular expressions in Ja
 
 
    As shown in the second form of this example, you can use a regular expression created with an object initializer without assigning it to a variable. If you do, however, every occurrence is a new regular expression. For this reason, if you use this form without assigning it to a variable, you cannot subsequently access the properties of that regular expression. For example, assume you have this script:
    
 
-
    var myRe = /d(b+)d/g;
+
    var myRe = /d(b+)d/g;
 var myArray = myRe.exec('cdbbdbsbz');
 console.log('The value of lastIndex is ' + myRe.lastIndex);
 
@@ -270,7 +270,7 @@ 
    Using regular expressions in Ja
 
 
    However, if you have this script:
    
 
-
    var myArray = /d(b+)d/g.exec('cdbbdbsbz');
+
    var myArray = /d(b+)d/g.exec('cdbbdbsbz');
 console.log('The value of lastIndex is ' + /d(b+)d/g.lastIndex);
 
 // "The value of lastIndex is 0"
@@ -327,19 +327,19 @@ 
    Advanced searching with flags
    
 
 
    To include a flag with the regular expression, use this syntax:
    
 
-
    var re = /pattern/flags;
+
    var re = /pattern/flags;
 
    
 
 
    or
    
 
-
    var re = new RegExp('pattern', 'flags');
+
    var re = new RegExp('pattern', 'flags');
 
    
 
 
    Note that the flags are an integral part of a regular expression. They cannot be added or removed later.
    
 
 
    For example, re = /\w+\s/g creates a regular expression that looks for one or more characters followed by a space, and it looks for this combination throughout the string.
    
 
-
    var re = /\w+\s/g;
+
    var re = /\w+\s/g;
 var str = 'fee fi fo fum';
 var myArray = str.match(re);
 console.log(myArray);
@@ -349,19 +349,19 @@ 
    Advanced searching with flags
    
 
 
    You could replace the line:
    
 
-
    var re = /\w+\s/g;
+
    var re = /\w+\s/g;
 
    
 
 
    with:
    
 
-
    var re = new RegExp('\\w+\\s', 'g');
+
    var re = new RegExp('\\w+\\s', 'g');
 
    
 
 
    and get the same result.
    
 
 
    The behavior associated with the g flag is different when the .exec() method is used.  The roles of "class" and "argument" get reversed: In the case of .match(), the string class (or data type) owns the method and the regular expression is just an argument, while in the case of .exec(), it is the regular expression that owns the method, with the string being the argument.  Contrast this str.match(re) versus re.exec(str).  The g flag is used with the .exec() method to get iterative progression.
    
 
-
    var xArray; while(xArray = re.exec(str)) console.log(xArray);
+
    var xArray; while(xArray = re.exec(str)) console.log(xArray);
 // produces:
 // ["fee ", index: 0, input: "fee fi fo fum"]
 // ["fi ", index: 4, input: "fee fi fo fum"]
@@ -398,7 +398,7 @@ 
    Using special characters to ve
 
 
    HTML
    
 
-
    <p>
+
    <p>
   Enter your phone number (with area code) and then click "Check".
   <br>
   The expected format is like ###-###-####.
@@ -410,7 +410,7 @@ 
    HTML
    
 
 
    JavaScript
    
 
-
    var re = /(?:\d{3}|\(\d{3}\))([-\/\.])\d{3}\1\d{4}/;
+
    var re = /(?:\d{3}|\(\d{3}\))([-\/\.])\d{3}\1\d{4}/;
 function testInfo(phoneInput) {
   var OK = re.exec(phoneInput.value);
   if (!OK) {
diff --git a/files/en-us/web/javascript/guide/regular_expressions/quantifiers/index.html b/files/en-us/web/javascript/guide/regular_expressions/quantifiers/index.html
index 6195268d2db7cd3..ef569a459c23a9c 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/quantifiers/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/quantifiers/index.html
@@ -94,7 +94,7 @@ 
    Examples
    
 
 
    Repeated pattern
    
 
-
    var wordEndingWithAs = /\w+a+\b/;
+
    var wordEndingWithAs = /\w+a+\b/;
 var delicateMessage = "This is Spartaaaaaaa";
 
 console.table(delicateMessage.match(wordEndingWithAs)); // [ "Spartaaaaaaa" ]
@@ -102,7 +102,7 @@ 
    Repeated pattern
    
 
 
    Counting characters
    
 
-
    var singleLetterWord = /\b\w\b/g;
+
    var singleLetterWord = /\b\w\b/g;
 var notSoLongWord = /\b\w{1,6}\b/g;
 var loooongWord = /\b\w{13,}\b/g;
 
@@ -115,7 +115,7 @@ 
    Counting characters
    
 
 
    Optional character
    
 
-
    var britishText = "He asked his neighbour a favour.";
+
    var britishText = "He asked his neighbour a favour.";
 var americanText = "He asked his neighbor a favor.";
 
 var regexpEnding = /\w+ou?r/g;
@@ -133,7 +133,7 @@ 
    Optional character
    
 
 
    Greedy versus non-greedy
    
 
-
    var text = "I must be getting somewhere near the centre of the earth.";
+
    var text = "I must be getting somewhere near the centre of the earth.";
 var greedyRegexp = /[\w ]+/;
 // [\w ]      a letter of the latin alphabet or a whitespace
 //      +     one or several times
diff --git a/files/en-us/web/javascript/guide/regular_expressions/unicode_property_escapes/index.html b/files/en-us/web/javascript/guide/regular_expressions/unicode_property_escapes/index.html
index 2846462ab2c25be..68586b5e80236e9 100644
--- a/files/en-us/web/javascript/guide/regular_expressions/unicode_property_escapes/index.html
+++ b/files/en-us/web/javascript/guide/regular_expressions/unicode_property_escapes/index.html
@@ -27,7 +27,7 @@ 
    Syntax
    
 
 
 
-
    // Non-binary values
+
    // Non-binary values
 \p{UnicodePropertyValue}
 \p{UnicodePropertyName=UnicodePropertyValue}
 
@@ -72,7 +72,7 @@ 
    General categories
    
 
 
    They can be used to match letters, numbers, symbols, punctuations, spaces, etc. For a more exhaustive list of general categories, please refer to the Unicode specification.
    
 
-
    // finding all the letters of a text
+
    // finding all the letters of a text
 let story = "It’s the Cheshire Cat: now I shall have somebody to talk to.";
 
 // Most explicit form
@@ -94,7 +94,7 @@ 
    Scripts and script extensions
    
 
 
    For example, A belongs to the Latin script and ε to the Greek script.
    
 
-
    let mixedCharacters = "aεЛ";
+
    let mixedCharacters = "aεЛ";
 
 // Using the canonical "long" name of the script
 mixedCharacters.match(/\p{Script=Latin}/u); // a
@@ -110,7 +110,7 @@ 
    Scripts and script extensions
    
 
 
    If a character is used in a limited set of scripts, the Script property will only match for the "predominant" used script. If we want to match characters based on a "non-predominant" script, we could use the Script_Extensions property (Scx for short).
    
 
-
    // ٢ is the digit 2 in Arabic-Indic notation
+
    // ٢ is the digit 2 in Arabic-Indic notation
 // while it is predominantly written within the Arabic script
 // it can also be written in the Thaana script
 
@@ -127,7 +127,7 @@ 
    Unicode property escapes
 
 
    Unicode property escapes categories encompass much more characters and \p{Letter} or \p{Number} will work for any script.
    
 
-
    // Trying to use ranges to avoid \w limitations:
+
    // Trying to use ranges to avoid \w limitations:
 
 const nonEnglishText = "Приключения Алисы в Стране чудес";
 const regexpBMPWord = /([\u0000-\u0019\u0021-\uFFFF])+/gu;
diff --git a/files/en-us/web/javascript/guide/using_promises/index.html b/files/en-us/web/javascript/guide/using_promises/index.html
index 519b284686b2aaf..d2eb053e19019a4 100644
--- a/files/en-us/web/javascript/guide/using_promises/index.html
+++ b/files/en-us/web/javascript/guide/using_promises/index.html
@@ -20,7 +20,7 @@
 
 
    Here's some code that uses createAudioFileAsync():
    
 
-
    function successCallback(result) {
+
    function successCallback(result) {
   console.log("Audio file ready at URL: " + result);
 }
 
@@ -33,7 +33,7 @@
 
 
    If createAudioFileAsync() were rewritten to return a promise, you would attach your callbacks to it instead:
    
 
-
    createAudioFileAsync(audioSettings).then(successCallback, failureCallback);
    
+
    createAudioFileAsync(audioSettings).then(successCallback, failureCallback);
    
 
 
    This convention has several advantages. We will explore each one.
    
 
@@ -55,13 +55,13 @@ 
    Chaining
    
 
 
    Here's the magic: the then() function returns a new promise, different from the original:
    
 
-
    const promise = doSomething();
+
    const promise = doSomething();
 const promise2 = promise.then(successCallback, failureCallback);
 
    
 
 
    or
    
 
-
    const promise2 = doSomething().then(successCallback, failureCallback);
+
    const promise2 = doSomething().then(successCallback, failureCallback);
 
    
 
 
    This second promise (promise2) represents the completion not just of doSomething(), but also of the successCallback or failureCallback you passed in, which can be other asynchronous functions returning a promise. When that's the case, any callbacks added to promise2 get queued behind the promise returned by either successCallback or failureCallback.
    
@@ -70,7 +70,7 @@ 
    Chaining
    
 
 
    In the old days, doing several asynchronous operations in a row would lead to the classic callback pyramid of doom:
    
 
-
    doSomething(function(result) {
+
    doSomething(function(result) {
   doSomethingElse(result, function(newResult) {
     doThirdThing(newResult, function(finalResult) {
       console.log('Got the final result: ' + finalResult);
@@ -81,7 +81,7 @@ 
    Chaining
    
 
 
    With modern functions, we attach our callbacks to the returned promises instead, forming a promise chain:
    
 
-
    doSomething()
+
    doSomething()
 .then(function(result) {
   return doSomethingElse(result);
 })
@@ -96,7 +96,7 @@ 
    Chaining
    
 
 
    The arguments to then are optional, and catch(failureCallback) is short for then(null, failureCallback). You might see this expressed with arrow functions instead:
    
 
-
    doSomething()
+
    doSomething()
 .then(result => doSomethingElse(result))
 .then(newResult => doThirdThing(newResult))
 .then(finalResult => {
@@ -111,7 +111,7 @@ 
    Chaining after a catch
    
 
 
    It's possible to chain after a failure, i.e. a catch, which is useful to accomplish new actions even after an action failed in the chain. Read the following example:
    
 
-
    new Promise((resolve, reject) => {
+
    new Promise((resolve, reject) => {
     console.log('Initial');
 
     resolve();
@@ -131,7 +131,7 @@ 
    Chaining after a catch
    
 
 
    This will output the following text:
    
 
-
    Initial
+
    Initial
 Do that
 Do this, no matter what happened before
 
    
@@ -142,7 +142,7 @@ 
    Error propagation
    
 
 
    You might recall seeing failureCallback three times in the pyramid of doom earlier, compared to only once at the end of the promise chain:
    
 
-
    doSomething()
+
    doSomething()
 .then(result => doSomethingElse(result))
 .then(newResult => doThirdThing(newResult))
 .then(finalResult => console.log(`Got the final result: ${finalResult}`))
@@ -151,7 +151,7 @@ 
    Error propagation
    
 
 
    If there's an exception, the browser will look down the chain for .catch() handlers or onRejected. This is very much modeled after how synchronous code works:
    
 
-
    try {
+
    try {
   const result = syncDoSomething();
   const newResult = syncDoSomethingElse(result);
   const finalResult = syncDoThirdThing(newResult);
@@ -163,7 +163,7 @@ 
    Error propagation
    
 
 
    This symmetry with asynchronous code culminates in the async/await syntactic sugar in ECMAScript 2017:
    
 
-
    async function foo() {
+
    async function foo() {
   try {
     const result = await doSomething();
     const newResult = await doSomethingElse(result);
@@ -196,7 +196,7 @@ 
    Promise rejection events
    
 
 
    One case of special usefulness: when writing code for Node.js, it's common that modules you include in your project may have unhandled rejected promises, logged to the console by the Node.js runtime. You can capture them for analysis and handling by your code—or just to avoid having them cluttering up your output—by adding a handler for the Node.js unhandledRejection event (notice the difference in capitalization of the name), like this:
    
 
-
    process.on("unhandledRejection", (reason, promise) => {
+
    process.on("unhandledRejection", (reason, promise) => {
   /* You might start here by adding code to examine the
    * "promise" and "reason" values. */
 });
@@ -212,14 +212,14 @@ 
    Creating a Promise around
 
 
    In an ideal world, all asynchronous functions would already return promises. Unfortunately, some APIs still expect success and/or failure callbacks to be passed in the old way. The most obvious example is the setTimeout() function:
    
 
-
    setTimeout(() => saySomething("10 seconds passed"), 10*1000);
+
    setTimeout(() => saySomething("10 seconds passed"), 10*1000);
 
    
 
 
    Mixing old-style callbacks and promises is problematic. If saySomething() fails or contains a programming error, nothing catches it. setTimeout is to blame for this.
    
 
 
    Luckily we can wrap setTimeout in a promise. Best practice is to wrap problematic functions at the lowest possible level, and then never call them directly again:
    
 
-
    const wait = ms => new Promise(resolve => setTimeout(resolve, ms));
+
    const wait = ms => new Promise(resolve => setTimeout(resolve, ms));
 
 wait(10*1000).then(() => saySomething("10 seconds")).catch(failureCallback);
 
    
@@ -234,13 +234,13 @@ 
    Composition
    
 
 
    We can start operations in parallel and wait for them all to finish like this:
    
 
-
    Promise.all([func1(), func2(), func3()])
+
    Promise.all([func1(), func2(), func3()])
 .then(([result1, result2, result3]) => { /* use result1, result2 and result3 */ });
 
    
 
 
    Sequential composition is possible using some clever JavaScript:
    
 
-
    [func1, func2, func3].reduce((p, f) => p.then(f), Promise.resolve())
+
    [func1, func2, func3].reduce((p, f) => p.then(f), Promise.resolve())
 .then(result3 => { /* use result3 */ });
 
    
 
@@ -248,18 +248,18 @@ 
    Composition
    
 
 
    This can be made into a reusable compose function, which is common in functional programming:
    
 
-
    const applyAsync = (acc,val) => acc.then(val);
+
    const applyAsync = (acc,val) => acc.then(val);
 const composeAsync = (...funcs) => x => funcs.reduce(applyAsync, Promise.resolve(x));
    
 
 
    The composeAsync() function will accept any number of functions as arguments, and will return a new function that accepts an initial value to be passed through the composition pipeline:
    
 
-
    const transformData = composeAsync(func1, func2, func3);
+
    const transformData = composeAsync(func1, func2, func3);
 const result3 = transformData(data);
 
    
 
 
    In ECMAScript 2017, sequential composition can be done more with async/await:
    
 
-
    let result;
+
    let result;
 for (const f of [func1, func2, func3]) {
   result = await f(result);
 }
@@ -270,13 +270,13 @@ 
    Timing
    
 
 
    To avoid surprises, functions passed to then() will never be called synchronously, even with an already-resolved promise:
    
 
-
    Promise.resolve().then(() => console.log(2));
+
    Promise.resolve().then(() => console.log(2));
 console.log(1); // 1, 2
 
    
 
 
    Instead of running immediately, the passed-in function is put on a microtask queue, which means it runs later (only after the function which created it exits, and when the JavaScript execution stack is empty), just before control is returned to the event loop; i.e. pretty soon:
    
 
-
    const wait = ms => new Promise(resolve => setTimeout(resolve, ms));
+
    const wait = ms => new Promise(resolve => setTimeout(resolve, ms));
 
 wait().then(() => console.log(4));
 Promise.resolve().then(() => console.log(2)).then(() => console.log(3));
@@ -287,7 +287,7 @@ 
    Task queues vs microtasks
    
 
 
    Promise callbacks are handled as a Microtask whereas setTimeout() callbacks are handled as Task queues.
    
 
-
    const promise = new Promise(function(resolve, reject) {
+
    const promise = new Promise(function(resolve, reject) {
   console.log("Promise callback");
   resolve();
 }).then(function(result) {
@@ -303,7 +303,7 @@ 
    Task queues vs microtasks
    
 
 
    The code above will output:
    
 
-
    Promise callback
+
    Promise callback
 Promise (pending) Promise {<pending>}
 Promise callback (.then)
 event-loop cycle: Promise (fulfilled) Promise {<fulfilled>}
    
@@ -316,7 +316,7 @@ 
    Nesting
    
 
 
    Nesting is a control structure to limit the scope of catch statements. Specifically, a nested catch only catches failures in its scope and below, not errors higher up in the chain outside the nested scope. When used correctly, this gives greater precision in error recovery:
    
 
-
    doSomethingCritical()
+
    doSomethingCritical()
 .then(result => doSomethingOptional(result)
   .then(optionalResult => doSomethingExtraNice(optionalResult))
   .catch(e => {})) // Ignore if optional stuff fails; proceed.
@@ -332,7 +332,7 @@ 
    Common mistakes
    
 
 
    Here are some common mistakes to watch out for when composing promise chains. Several of these mistakes manifest in the following example:
    
 
-
    // Bad example! Spot 3 mistakes!
+
    // Bad example! Spot 3 mistakes!
 
 doSomething().then(function(result) {
   doSomethingElse(result) // Forgot to return promise from inner chain + unnecessary nesting
@@ -349,7 +349,7 @@ 
    Common mistakes
    
 
 
    A good rule-of-thumb is to always either return or terminate promise chains, and as soon as you get a new promise, return it immediately, to flatten things:
    
 
-
    doSomething()
+
    doSomething()
 .then(function(result) {
   return doSomethingElse(result);
 })
diff --git a/files/en-us/web/javascript/guide/working_with_objects/index.html b/files/en-us/web/javascript/guide/working_with_objects/index.html
index 1d8e46f4780c5db..e17ff9aa71bec4b 100644
--- a/files/en-us/web/javascript/guide/working_with_objects/index.html
+++ b/files/en-us/web/javascript/guide/working_with_objects/index.html
@@ -24,12 +24,12 @@ 
    Objects and properties
    
 
 
    A JavaScript object has properties associated with it. A property of an object can be explained as a variable that is attached to the object. Object properties are basically the same as ordinary JavaScript variables, except for the attachment to objects. The properties of an object define the characteristics of the object. You access the properties of an object with a simple dot-notation:
    
 
-
    objectName.propertyName
+
    objectName.propertyName
 
    
 
 
    Like all JavaScript variables, both the object name (which could be a normal variable) and property name are case sensitive. You can define a property by assigning it a value. For example, let's create an object named myCar and give it properties named make, model, and year as follows:
    
 
-
    var myCar = new Object();
+
    var myCar = new Object();
 myCar.make = 'Ford';
 myCar.model = 'Mustang';
 myCar.year = 1969;
@@ -37,7 +37,7 @@ 
    Objects and properties
    
 
 
    The above example could also be written using an object initializer, which is a comma-delimited list of zero or more pairs of property names and associated values of an object, enclosed in curly braces ({}):
    
 
-
    var myCar = {
+
    var myCar = {
     make: 'Ford',
     model: 'Mustang',
     year: 1969
@@ -46,18 +46,18 @@ 
    Objects and properties
    
 
 
    Unassigned properties of an object are {{jsxref("undefined")}} (and not {{jsxref("null")}}).
    
 
-
    myCar.color; // undefined
    
+
    myCar.color; // undefined
    
 
 
    Properties of JavaScript objects can also be accessed or set using a bracket notation (for more details see property accessors). Objects are sometimes called associative arrays, since each property is associated with a string value that can be used to access it. So, for example, you could access the properties of the myCar object as follows:
    
 
-
    myCar['make'] = 'Ford';
+
    myCar['make'] = 'Ford';
 myCar['model'] = 'Mustang';
 myCar['year'] = 1969;
 
    
 
 
    An object property name can be any valid JavaScript string, or anything that can be converted to a string, including the empty string. However, any property name that is not a valid JavaScript identifier (for example, a property name that has a space or a hyphen, or that starts with a number) can only be accessed using the square bracket notation. This notation is also very useful when property names are to be dynamically determined (when the property name is not determined until runtime). Examples are as follows:
    
 
-
    // four variables are created and assigned in a single go,
+
    // four variables are created and assigned in a single go,
 // separated by commas
 var myObj = new Object(),
     str = 'myString',
@@ -78,7 +78,7 @@ 
    Objects and properties
    
 
 
    You can also access properties by using a string value that is stored in a variable:
    
 
-
    var propertyName = 'make';
+
    var propertyName = 'make';
 myCar[propertyName] = 'Ford';
 
 propertyName = 'model';
@@ -87,7 +87,7 @@ 
    Objects and properties
    
 
 
    You can use the bracket notation with for...in to iterate over all the enumerable properties of an object. To illustrate how this works, the following function displays the properties of the object when you pass the object and the object's name as arguments to the function:
    
 
-
    function showProps(obj, objName) {
+
    function showProps(obj, objName) {
   var result = ``;
   for (var i in obj) {
     // obj.hasOwnProperty() is used to filter out properties from the object's prototype chain
@@ -101,7 +101,7 @@ 
    Objects and properties
    
 
 
    So, the function call showProps(myCar, "myCar") would return the following:
    
 
-
    myCar.make = Ford
+
    myCar.make = Ford
 myCar.model = Mustang
 myCar.year = 1969
    
 
@@ -120,7 +120,7 @@ 
    Enumerate the properties of an ob
 
 
    Before ECMAScript 5, there was no native way to list all properties of an object. However, this can be achieved with the following function:
    
 
-
    function listAllProperties(o) {
+
    function listAllProperties(o) {
 	var objectToInspect;
 	var result = [];
 
@@ -147,7 +147,7 @@ 
    Using object i
 
 
    The syntax for an object using an object initializer is:
    
 
-
    var obj = { property_1:   value_1,   // property_# may be an identifier...
+
    var obj = { property_1:   value_1,   // property_# may be an identifier...
             2:            value_2,   // or a number...
             // ...,
             'property n': value_n }; // or a string
@@ -159,12 +159,12 @@ 
    Using object i
 
 
    The following statement creates an object and assigns it to the variable x if and only if the expression cond is true:
    
 
-
    if (cond) var x = {greeting: 'hi there'};
+
    if (cond) var x = {greeting: 'hi there'};
 
    
 
 
    The following example creates myHonda with three properties. Note that the engine property is also an object with its own properties.
    
 
-
    var myHonda = {color: 'red', wheels: 4, engine: {cylinders: 4, size: 2.2}};
+
    var myHonda = {color: 'red', wheels: 4, engine: {cylinders: 4, size: 2.2}};
 
    
 
 
    You can also use object initializers to create arrays. See array literals.
    
@@ -180,7 +180,7 @@ 
    Using a constructor function
    
 
 
    To define an object type, create a function for the object type that specifies its name, properties, and methods. For example, suppose you want to create an object type for cars. You want this type of object to be called Car, and you want it to have properties for make, model, and year. To do this, you would write the following function:
    
 
-
    function Car(make, model, year) {
+
    function Car(make, model, year) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -191,20 +191,20 @@ 
    Using a constructor function
    
 
 
    Now you can create an object called mycar as follows:
    
 
-
    var mycar = new Car('Eagle', 'Talon TSi', 1993);
+
    var mycar = new Car('Eagle', 'Talon TSi', 1993);
 
    
 
 
    This statement creates mycar and assigns it the specified values for its properties. Then the value of mycar.make is the string "Eagle", mycar.year is the integer 1993, and so on.
    
 
 
    You can create any number of Car objects by calls to new. For example,
    
 
-
    var kenscar = new Car('Nissan', '300ZX', 1992);
+
    var kenscar = new Car('Nissan', '300ZX', 1992);
 var vpgscar = new Car('Mazda', 'Miata', 1990);
 
    
 
 
    An object can have a property that is itself another object. For example, suppose you define an object called person as follows:
    
 
-
    function Person(name, age, sex) {
+
    function Person(name, age, sex) {
   this.name = name;
   this.age = age;
   this.sex = sex;
@@ -213,13 +213,13 @@ 
    Using a constructor function
    
 
 
    and then instantiate two new person objects as follows:
    
 
-
    var rand = new Person('Rand McKinnon', 33, 'M');
+
    var rand = new Person('Rand McKinnon', 33, 'M');
 var ken = new Person('Ken Jones', 39, 'M');
 
    
 
 
    Then, you can rewrite the definition of Car to include an owner property that takes a person object, as follows:
    
 
-
    function Car(make, model, year, owner) {
+
    function Car(make, model, year, owner) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -229,18 +229,18 @@ 
    Using a constructor function
    
 
 
    To instantiate the new objects, you then use the following:
    
 
-
    var car1 = new Car('Eagle', 'Talon TSi', 1993, rand);
+
    var car1 = new Car('Eagle', 'Talon TSi', 1993, rand);
 var car2 = new Car('Nissan', '300ZX', 1992, ken);
 
    
 
 
    Notice that instead of passing a literal string or integer value when creating the new objects, the above statements pass the objects rand and ken as the arguments for the owners. Then if you want to find out the name of the owner of car2, you can access the following property:
    
 
-
    car2.owner.name
+
    car2.owner.name
 
    
 
 
    Note that you can always add a property to a previously defined object. For example, the statement
    
 
-
    car1.color = 'black';
+
    car1.color = 'black';
 
    
 
 
    adds a property color to car1, and assigns it a value of "black." However, this does not affect any other objects. To add the new property to all objects of the same type, you have to add the property to the definition of the Car object type.
    
@@ -249,7 +249,7 @@ 
    Using the Object.create met
 
 
    Objects can also be created using the {{jsxref("Object.create()")}} method. This method can be very useful, because it allows you to choose the prototype object for the object you want to create, without having to define a constructor function.
    
 
-
    // Animal properties and method encapsulation
+
    // Animal properties and method encapsulation
 var Animal = {
   type: 'Invertebrates', // Default value of properties
   displayType: function() {  // Method which will display type of Animal
@@ -282,7 +282,7 @@ 
    Defining properties for an objec
 
 
    You can add a property to a previously defined object type by using the prototype property. This defines a property that is shared by all objects of the specified type, rather than by just one instance of the object. The following code adds a color property to all objects of type Car, and then assigns a value to the color property of the object car1.
    
 
-
    Car.prototype.color = null;
+
    Car.prototype.color = null;
 car1.color = 'black';
 
    
 
@@ -292,7 +292,7 @@ 
    Defining methods
    
 
 
    A method is a function associated with an object, or, put differently, a method is a property of an object that is a function. Methods are defined the way normal functions are defined, except that they have to be assigned as the property of an object. See also method definitions for more details. An example is:
    
 
-
    objectName.methodname = functionName;
+
    objectName.methodname = functionName;
 
 var myObj = {
   myMethod: function(params) {
@@ -311,12 +311,12 @@ 
    Defining methods
    
 
 
    You can then call the method in the context of the object as follows:
    
 
-
    object.methodname(params);
+
    object.methodname(params);
 
    
 
 
    You can define methods for an object type by including a method definition in the object constructor function. You could define a function that would format and display the properties of the previously-defined Car objects; for example,
    
 
-
    function displayCar() {
+
    function displayCar() {
   var result = `A Beautiful ${this.year} ${this.make} ${this.model}`;
   pretty_print(result);
 }
@@ -326,12 +326,12 @@ 
    Defining methods
    
 
 
    You can make this function a method of Car by adding the statement
    
 
-
    this.displayCar = displayCar;
+
    this.displayCar = displayCar;
 
    
 
 
    to the object definition. So, the full definition of Car would now look like
    
 
-
    function Car(make, model, year, owner) {
+
    function Car(make, model, year, owner) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -342,7 +342,7 @@ 
    Defining methods
    
 
 
    Then you can call the displayCar method for each of the objects as follows:
    
 
-
    car1.displayCar();
+
    car1.displayCar();
 car2.displayCar();
 
    
 
@@ -350,7 +350,7 @@ 
    Using this for object ref
 
 
    JavaScript has a special keyword, this, that you can use within a method to refer to the current object. For example, suppose you have 2 objects, Managerand Intern. Each object have their own name, age and job.  In the function sayHi(), notice there is this.name. When added to the 2 objects they can be called and returns the 'Hello, My name is' then adds the name value from that specific object. As shown below. 
    
 
-
    const Manager = {
+
    const Manager = {
   name: "John",
   age: 27,
   job: "Software Engineer"
@@ -375,7 +375,7 @@ 
    Using this for object ref
 
 
    The this refers to the object that it is in. You can create a new function called howOldAmI()which logs a sentence saying how old the person is. 
    
 
-
    function howOldAmI (){
+
    function howOldAmI (){
   console.log('I am ' + this.age + ' years old.')
 }
 Manager.howOldAmI = howOldAmI;
@@ -395,7 +395,7 @@ 
    Defining getters and setters
    
 
 
    When defining getters and setters using object initializers all you need to do is to prefix a getter method with get and a setter method with set. Of course, the getter method must not expect a parameter, while the setter method expects exactly one parameter (the new value to set). For instance:
    
 
-
    var o = {
+
    var o = {
   a: 7,
   get b() {
     return this.a + 1;
@@ -423,7 +423,7 @@ 
    Defining getters and setters
    
 
 
    Getters and setters can also be added to an object at any time after creation using the Object.defineProperties method. This method's first parameter is the object on which you want to define the getter or setter. The second parameter is an object whose property names are the getter or setter names, and whose property values are objects for defining the getter or setter functions. Here's an example that defines the same getter and setter used in the previous example:
    
 
-
    var o = { a: 0 };
+
    var o = { a: 0 };
 
 Object.defineProperties(o, {
     'b': { get: function() { return this.a + 1; } },
@@ -440,7 +440,7 @@ 
    Deleting properties
    
 
 
    You can remove a non-inherited property by using the delete operator. The following code shows how to remove a property.
    
 
-
    // Creates a new object, myobj, with two properties, a and b.
+
    // Creates a new object, myobj, with two properties, a and b.
 var myobj = new Object;
 myobj.a = 5;
 myobj.b = 12;
@@ -452,7 +452,7 @@ 
    Deleting properties
    
 
 
    You can also use delete to delete a global variable if the var keyword was not used to declare the variable:
    
 
-
    g = 17;
+
    g = 17;
 delete g;
 
    
 
@@ -460,14 +460,14 @@ 
    Comparing objects
    
 
 
    In JavaScript, objects are a reference type. Two distinct objects are never equal, even if they have the same properties. Only comparing the same object reference with itself yields true.
    
 
-
    // Two variables, two distinct objects with the same properties
+
    // Two variables, two distinct objects with the same properties
 var fruit = {name: 'apple'};
 var fruitbear = {name: 'apple'};
 
 fruit == fruitbear; // return false
 fruit === fruitbear; // return false
    
 
-
    // Two variables, a single object
+
    // Two variables, a single object
 var fruit = {name: 'apple'};
 var fruitbear = fruit;  // Assign fruit object reference to fruitbear
 
diff --git a/files/en-us/web/javascript/inheritance_and_the_prototype_chain/index.html b/files/en-us/web/javascript/inheritance_and_the_prototype_chain/index.html
index ea59cc6c3393b1f..39e89dca12cdc4e 100644
--- a/files/en-us/web/javascript/inheritance_and_the_prototype_chain/index.html
+++ b/files/en-us/web/javascript/inheritance_and_the_prototype_chain/index.html
@@ -32,7 +32,7 @@ 
    Inheriting properties
    
 
 
    Here is what happens when trying to access a property:
    
 
-
    // Let's create an object o from function f with its own properties a and b:
+
    // Let's create an object o from function f with its own properties a and b:
 let f = function () {
    this.a = 1;
    this.b = 2;
@@ -82,7 +82,7 @@ 
    Inheriting "methods"
    
 
 
    When an inherited function is executed, the value of this points to the inheriting object, not to the prototype object where the function is an own property.
    
 
-
    var o = {
+
    var o = {
   a: 2,
   m: function() {
     return this.a + 1;
@@ -109,7 +109,7 @@ 
    Using prototypes in JavaScript
    
 
 
    In JavaScript, as mentioned above, functions are able to have properties. All functions have a special property named prototype. Please note that the code below is free-standing (it is safe to assume there is no other JavaScript on the webpage other than the below code). For the best learning experience, it is highly recommended that you open a console, navigate to the "console" tab, copy-and-paste in the below JavaScript code, and run it by pressing the Enter/Return key. (The console is included in most web browser's Developer Tools. More information is available for Firefox Developer Tools, Chrome DevTools, and Edge DevTools.)
    
 
-
    function doSomething(){}
+
    function doSomething(){}
 console.log( doSomething.prototype );
 //  It does not matter how you declare the function, a
 //  function in JavaScript will always have a default
@@ -121,7 +121,7 @@ 
    Using prototypes in JavaScript
    
 
 
    As seen above, doSomething() has a default prototype property, as demonstrated by the console. After running this code, the console should have displayed an object that looks similar to this.
    
 
-
    {
+
    {
     constructor: ƒ doSomething(),
     __proto__: {
         constructor: ƒ Object(),
@@ -136,13 +136,13 @@ 
    Using prototypes in JavaScript
    
 
 
    We can add properties to the prototype of doSomething(), as shown below.
    
 
-
    function doSomething(){}
+
    function doSomething(){}
 doSomething.prototype.foo = "bar";
 console.log( doSomething.prototype );
    
 
 
    This results in:
    
 
-
    {
+
    {
     foo: "bar",
     constructor: ƒ doSomething(),
     __proto__: {
@@ -161,7 +161,7 @@ 
    Using prototypes in JavaScript
    
 
 
    Try the following code:
    
 
-
    function doSomething(){}
+
    function doSomething(){}
 doSomething.prototype.foo = "bar"; // add a property onto the prototype
 var doSomeInstancing = new doSomething();
 doSomeInstancing.prop = "some value"; // add a property onto the object
@@ -169,7 +169,7 @@ 
    Using prototypes in JavaScript
    
 
 
    This results in an output similar to the following:
    
 
-
    {
+
    {
     prop: "some value",
     __proto__: {
         foo: "bar",
@@ -196,7 +196,7 @@ 
    Using prototypes in JavaScript
    
 
 
    Let's try entering some more code into the console:
    
 
-
    function doSomething(){}
+
    function doSomething(){}
 doSomething.prototype.foo = "bar";
 var doSomeInstancing = new doSomething();
 doSomeInstancing.prop = "some value";
@@ -209,7 +209,7 @@ 
    Using prototypes in JavaScript
    
 
 
    This results in the following:
    
 
-
    doSomeInstancing.prop:      some value
+
    doSomeInstancing.prop:      some value
 doSomeInstancing.foo:       bar
 doSomething.prop:           undefined
 doSomething.foo:            undefined
@@ -220,7 +220,7 @@ 
    Diff
 
 
    Objects created with syntax constructs
    
 
-
    var o = {a: 1};
+
    var o = {a: 1};
 
 // The newly created object o has Object.prototype as its [[Prototype]]
 // o has no own property named 'hasOwnProperty'
@@ -249,7 +249,7 @@ 
    With a constructor
    
 
 
    A "constructor" in JavaScript is "just" a function that happens to be called with the new operator.
    
 
-
    function Graph() {
+
    function Graph() {
   this.vertices = [];
   this.edges = [];
 }
@@ -269,7 +269,7 @@ 
    With Object.create
    
 
 
    ECMAScript 5 introduced a new method: {{jsxref("Object.create()")}}. Calling this method creates a new object. The prototype of this object is the first argument of the function:
    
 
-
    var a = {a: 1};
+
    var a = {a: 1};
 // a ---> Object.prototype ---> null
 
 var b = Object.create(a);
@@ -289,7 +289,7 @@ 
    delete
 
 
    Using Object.create of another object demonstrates prototypical inheritance with the delete operation:
    
 
-
    var a = {a: 1};
+
    var a = {a: 1};
 
 var b = Object.create(a);
 
@@ -307,7 +307,7 @@ 
    delete
 
 
    The new operator has a shorter chain in this example:
    
 
-
    function Graph() {
+
    function Graph() {
   this.vertices = [4,4];
 }
 
@@ -323,7 +323,7 @@ 
    With the class keyword
    
 
 
    ECMAScript 2015 introduced a new set of keywords implementing classes. The new keywords include {{jsxref("Statements/class", "class")}}, {{jsxref("Classes/constructor", "constructor")}}, {{jsxref("Classes/static", "static")}}, {{jsxref("Classes/extends", "extends")}}, and {{jsxref("Operators/super", "super")}}.
    
 
-
    'use strict';
+
    'use strict';
 
 class Polygon {
   constructor(height, width) {
@@ -354,7 +354,7 @@ 
    Performance
    
 
 
    Also, when iterating over the properties of an object, every enumerable property that is on the prototype chain will be enumerated. To check whether an object has a property defined on itself and not somewhere on its prototype chain, it is necessary to use the hasOwnProperty method which all objects inherit from Object.prototype. To give you a concrete example, let's take the above graph example code to illustrate it:
    
 
-
    console.log(g.hasOwnProperty('vertices'));
+
    console.log(g.hasOwnProperty('vertices'));
 // true
 
 console.log(g.hasOwnProperty('nope'));
@@ -394,7 +394,7 @@ 
    Summary of methods
 		
 			New-initialization
 			
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -414,7 +414,7 @@ 
    Summary of methods
 		
 			Object.create
 			
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -430,7 +430,7 @@ 
    Summary of methods
 console.log(inst.bar_prop);
 
    
 
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -457,7 +457,7 @@ 
    Summary of methods
 			
    Object.setPrototypeOf
    
 			
 			
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -475,7 +475,7 @@ 
    Summary of methods
 console.log(inst.bar_prop);
 
    
 
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -497,7 +497,7 @@ 
    Summary of methods
 		
 			__proto__
 			
-			
    +			
     function foo(){}
 foo.prototype = {
   foo_prop: "foo val"
@@ -513,7 +513,7 @@ 
    Summary of methods
 console.log(inst.bar_prop);
 
    
 
-			
    +			
     var inst = {
   __proto__: {
     bar_prop: "bar val",
@@ -546,17 +546,17 @@ 
    prototype and Ob
 
 
    So, when you call
    
 
-
    var o = new Foo();
    
+
    var o = new Foo();
    
 
 
    JavaScript actually just does
    
 
-
    var o = new Object();
+
    var o = new Object();
 o.[[Prototype]] = Foo.prototype;
 Foo.call(o);
    
 
 
    (or something like that) and when you later do
    
 
-
    o.someProp;
    
+
    o.someProp;
    
 
 
    it checks whether o has a property someProp. If not, it checks Object.getPrototypeOf(o).someProp, and if that doesn't exist it checks Object.getPrototypeOf(Object.getPrototypeOf(o)).someProp, and so on.
    
 
diff --git a/files/en-us/web/javascript/reference/classes/constructor/index.html b/files/en-us/web/javascript/reference/classes/constructor/index.html
index 60410caaf5712df..7bf74f00da8689a 100644
--- a/files/en-us/web/javascript/reference/classes/constructor/index.html
+++ b/files/en-us/web/javascript/reference/classes/constructor/index.html
@@ -17,14 +17,14 @@
 
 
    Syntax
    
 
-
    constructor([arguments]) { ... }
    
+
    constructor([arguments]) { ... }
    
 
 
    Description
    
 
 
    A constructor enables you to provide any custom initialization that must be done before
   any other methods can be called on an instantiated object.
    
 
-
    class Person {
+
    class Person {
 
   constructor(name) {
     this.name = name;
@@ -43,18 +43,18 @@ 
    Description
    
 
    If you don't provide your own constructor, then a default constructor will be supplied
   for you. If your class is a base class, the default constructor is empty:
    
 
-
    constructor() {}
    
+
    constructor() {}
    
 
 
    If your class is a derived class, the default constructor calls the parent constructor,
   passing along any arguments that were provided:
    
 
-
    constructor(...args) {
+
    constructor(...args) {
   super(...args);
 }
    
 
 
    That enables code like this to work:
    
 
-
    class ValidationError extends Error {
+
    class ValidationError extends Error {
 
   printCustomerMessage() {
     return `Validation failed :-( (details: ${this.message})`;
@@ -82,7 +82,7 @@ 
    Description
    
   class, then you must explicitly call the parent class constructor using
   super. For example:
    
 
-
    class ValidationError extends Error {
+
    class ValidationError extends Error {
 
   constructor(message) {
     super(message);  // call parent class constructor
@@ -124,7 +124,7 @@ 
    Using the constructor method<
     href="https://googlechrome.github.io/samples/classes-es6/index.html">live demo).
 
    
 
-
    class Square extends Polygon {
+
    class Square extends Polygon {
   constructor(length) {
     // Here, it calls the parent class' constructor with lengths
     // provided for the Polygon's width and height
@@ -150,7 +150,7 @@ 
    Another example
    
   base class Polygon is still called when a new instance of a square is
   created.
    
 
-
    class Polygon {
+
    class Polygon {
     constructor() {
         this.name = "Polygon";
     }
diff --git a/files/en-us/web/javascript/reference/classes/extends/index.html b/files/en-us/web/javascript/reference/classes/extends/index.html
index 51ca1ce17b9b06a..e430176790294a1 100644
--- a/files/en-us/web/javascript/reference/classes/extends/index.html
+++ b/files/en-us/web/javascript/reference/classes/extends/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    class ChildClass extends ParentClass { ... }
    
+
    class ChildClass extends ParentClass { ... }
    
 
 
    Description
    
 
@@ -44,7 +44,7 @@ 
    Using extends
    
     href="https://github.com/GoogleChrome/samples/blob/gh-pages/classes-es6/index.html">(source).
 
    
 
-
    class Square extends Polygon {
+
    class Square extends Polygon {
   constructor(length) {
     // Here, it calls the parent class' constructor with lengths
     // provided for the Polygon's width and height
@@ -67,7 +67,7 @@ 
    Using extends with built-in objects
     href="https://github.com/GoogleChrome/samples/blob/gh-pages/classes-es6/index.html">(source).
 
    
 
-
    class myDate extends Date {
+
    class myDate extends Date {
 
   getFormattedDate() {
     var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
diff --git a/files/en-us/web/javascript/reference/classes/index.html b/files/en-us/web/javascript/reference/classes/index.html
index bb453e8a573a4ff..b9e3d0cb74d588f 100644
--- a/files/en-us/web/javascript/reference/classes/index.html
+++ b/files/en-us/web/javascript/reference/classes/index.html
@@ -22,7 +22,7 @@ 
    Class declarations
    
 
 
    One way to define a class is using a class declaration. To declare a class, you use the class keyword with the name of the class ("Rectangle" here).
    
 
-
    class Rectangle {
+
    class Rectangle {
   constructor(height, width) {
     this.height = height;
     this.width = width;
@@ -33,7 +33,7 @@ 
    Hoisting
    
 
 
    An important difference between function declarations and class declarations is that function declarations are {{Glossary("Hoisting", "hoisted")}} and class declarations are not. You first need to declare your class and then access it, otherwise code like the following will throw a {{jsxref("ReferenceError")}}:
    
 
-
    const p = new Rectangle(); // ReferenceError
+
    const p = new Rectangle(); // ReferenceError
 
 class Rectangle {}
 
    
@@ -42,7 +42,7 @@ 
    Class expressions
    
 
 
    A class expression is another way to define a class. Class expressions can be named or unnamed. The name given to a named class expression is local to the class's body. (it can be retrieved through the class's (not an instance's) {{jsxref("Function.name", "name")}} property, though).
    
 
-
    // unnamed
+
    // unnamed
 let Rectangle = class {
   constructor(height, width) {
     this.height = height;
@@ -86,7 +86,7 @@ 
    Prototype methods
    
 
 
    See also {{jsxref("Functions/Method_definitions", "method definitions", "", "true")}}.
    
 
-
    class Rectangle {
+
    class Rectangle {
   constructor(height, width) {
     this.height = height;
     this.width = width;
@@ -109,7 +109,7 @@ 
    Generator methods
    
 
 
    See also Iterators and generators.
    
 
-
    class Polygon {
+
    class Polygon {
   constructor(...sides) {
     this.sides = sides;
   }
@@ -129,7 +129,7 @@ 
    Static methods and properties
    
 
 
    The {{jsxref("Classes/static", "static", "", "true")}} keyword defines a static method or property for a class. Static members (properties and methods) are called without instantiating their class and cannot be called through a class instance. Static methods are often used to create utility functions for an application, whereas static properties are useful for caches, fixed-configuration, or any other data you don't need to be replicated across instances.
    
 
-
    class Point {
+
    class Point {
   constructor(x, y) {
     this.x = x;
     this.y = y;
@@ -159,7 +159,7 @@ 
    Binding thisWhen a static or prototype method is called without a value for {{jsxref("Operators/this", "this")}}, such as by assigning the method to a variable and then calling it, the this value will be undefined inside the method. This behavior will be the same even if the {{jsxref("Strict_mode", "\"use strict\"")}} directive isn't present, because code within the class body's syntactic boundary is always executed in strict mode.
    
 
-
    class Animal {
+
    class Animal {
   speak() {
     return this;
   }
@@ -179,7 +179,7 @@ 
    Binding thisIf we rewrite the above using traditional function-based syntax in non–strict mode, then this method calls are automatically bound to the initial this value, which by default is the {{Glossary("Global_object", "global object")}}. In strict mode, autobinding will not happen; the value of this remains as passed.
    
 
-
    function Animal() { }
+
    function Animal() { }
 
 Animal.prototype.speak = function() {
   return this;
@@ -201,7 +201,7 @@ 
    Instance properties
    
 
 
    Instance properties must be defined inside of class methods:
    
 
-
    class Rectangle {
+
    class Rectangle {
   constructor(height, width) {
     this.height = height;
     this.width = width;
@@ -210,7 +210,7 @@ 
    Instance properties
    
 
 
    Static (class-side) data properties and prototype data properties must be defined outside of the ClassBody declaration:
    
 
-
    Rectangle.staticWidth = 20;
+
    Rectangle.staticWidth = 20;
 Rectangle.prototype.prototypeWidth = 25;
 
    
 
@@ -224,7 +224,7 @@ 
    Public field declarations
    
 
 
    With the JavaScript field declaration syntax, the above example can be written as:
    
 
-
    class Rectangle {
+
    class Rectangle {
   height = 0;
   width;
   constructor(height, width) {
@@ -244,7 +244,7 @@ 
    Private field declarations
    
 
 
    Using private fields, the definition can be refined as below.
    
 
-
    class Rectangle {
+
    class Rectangle {
   #height = 0;
   #width;
   constructor(height, width) {
@@ -269,7 +269,7 @@ 
    Sub classing with extends
    
 
 
    The {{jsxref("Classes/extends", "extends")}} keyword is used in class declarations or class expressions to create a class as a child of another class.
    
 
-
    class Animal {
+
    class Animal {
   constructor(name) {
     this.name = name;
   }
@@ -297,7 +297,7 @@ 
    Sub classing with extends
    
 
 
    One may also extend traditional function-based "classes":
    
 
-
    function Animal (name) {
+
    function Animal (name) {
   this.name = name;
 }
 
@@ -318,7 +318,7 @@ 
    Sub classing with extends
    
 
 
    Note that classes cannot extend regular (non-constructible) objects. If you want to inherit from a regular object, you can instead use {{jsxref("Object.setPrototypeOf()")}}:
    
 
-
    const Animal = {
+
    const Animal = {
   speak() {
     console.log(`${this.name} makes a noise.`);
   }
@@ -343,7 +343,7 @@ 
    Species
    
 
 
    For example, when using methods such as {{jsxref("Array.map", "map()")}} that returns the default constructor, you want these methods to return a parent Array object, instead of the MyArray object. The {{jsxref("Symbol.species")}} symbol lets you do this:
    
 
-
    class MyArray extends Array {
+
    class MyArray extends Array {
   // Overwrite species to the parent Array constructor
   static get [Symbol.species]() { return Array; }
 }
@@ -359,7 +359,7 @@ 
    Super class calls with super<
 
 
    The {{jsxref("Operators/super", "super")}} keyword is used to call corresponding methods of super class. This is one advantage over prototype-based inheritance.
    
 
-
    class Cat {
+
    class Cat {
   constructor(name) {
     this.name = name;
   }
@@ -388,7 +388,7 @@ 
    Mix-ins
    
 
 
    A function with a superclass as input and a subclass extending that superclass as output can be used to implement mix-ins in ECMAScript:
    
 
-
    let calculatorMixin = Base => class extends Base {
+
    let calculatorMixin = Base => class extends Base {
   calc() { }
 };
 
@@ -399,7 +399,7 @@ 
    Mix-ins
    
 
 
    A class that uses these mix-ins can then be written like this:
    
 
-
    class Foo { }
+
    class Foo { }
 class Bar extends calculatorMixin(randomizerMixin(Foo)) { }
    
 
 
    Re-running a class definition
    
diff --git a/files/en-us/web/javascript/reference/classes/private_class_fields/index.html b/files/en-us/web/javascript/reference/classes/private_class_fields/index.html
index 1e2a40ac898eb7e..2557edb32a7d709 100644
--- a/files/en-us/web/javascript/reference/classes/private_class_fields/index.html
+++ b/files/en-us/web/javascript/reference/classes/private_class_fields/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    class ClassWithPrivateField {
+
    class ClassWithPrivateField {
   #privateField
 }
 
@@ -39,7 +39,7 @@ 
    Private static fields
    
 
 
    The limitation of static variables being called by only static methods still holds.
    
 
-
    class ClassWithPrivateStaticField {
+
    class ClassWithPrivateStaticField {
   static #PRIVATE_STATIC_FIELD
 
   static publicStaticMethod() {
@@ -57,7 +57,7 @@ 
    Private static fields
    
 
 
    This can lead to unexpected behavior when using this.
    
 
-
    class BaseClassWithPrivateStaticField {
+
    class BaseClassWithPrivateStaticField {
   static #PRIVATE_STATIC_FIELD
 
   static basePublicStaticMethod() {
@@ -87,7 +87,7 @@ 
    Private instance fields
    
 
    The encapsulation is enforced by the language. It is a syntax error to refer to
   # names from out of scope.
    
 
-
    class ClassWithPrivateField {
+
    class ClassWithPrivateField {
   #privateField
 
   constructor() {
@@ -110,7 +110,7 @@ 
    Private static methods
    
 
 
    Private static methods may be generator, async, and async generator functions.
    
 
-
    class ClassWithPrivateStaticMethod {
+
    class ClassWithPrivateStaticMethod {
   static #privateStaticMethod() {
     return 42
   }
@@ -134,7 +134,7 @@ 
    Private static methods
    
   Derived.publicStaticMethod2(), and thus exhibits the same "provenance
   restriction" as mentioned above:
    
 
-
    class Base {
+
    class Base {
   static #privateStaticMethod() {
     return 42;
   }
@@ -157,7 +157,7 @@ 
    Private instance methods
    
 
    Private instance methods are methods available on class instances whose access is
   restricted in the same manner as private instance fields.
    
 
-
    class ClassWithPrivateMethod {
+
    class ClassWithPrivateMethod {
   #privateMethod() {
     return 'hello world'
   }
@@ -174,7 +174,7 @@ 
    Private instance methods
    
 
    Private instance methods may be generator, async, or async generator functions. Private
   getters and setters are also possible:
    
 
-
    class ClassWithPrivateAccessor {
+
    class ClassWithPrivateAccessor {
   #message
 
   get #decoratedMessage() {
diff --git a/files/en-us/web/javascript/reference/classes/public_class_fields/index.html b/files/en-us/web/javascript/reference/classes/public_class_fields/index.html
index d9f761ff2ddb94c..71a5b02014e81e6 100644
--- a/files/en-us/web/javascript/reference/classes/public_class_fields/index.html
+++ b/files/en-us/web/javascript/reference/classes/public_class_fields/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    class ClassWithInstanceField {
+
    class ClassWithInstanceField {
   instanceField = 'instance field'
 }
 
diff --git a/files/en-us/web/javascript/reference/classes/static/index.html b/files/en-us/web/javascript/reference/classes/static/index.html
index 6dae6b84670f70d..328c639c91ca127 100644
--- a/files/en-us/web/javascript/reference/classes/static/index.html
+++ b/files/en-us/web/javascript/reference/classes/static/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    static methodName() { ... }
+
    static methodName() { ... }
 static propertyName [= value];
 
    
 
@@ -43,7 +43,7 @@ 
    Using static members in classes
    
   
  • How a static member can and cannot be called.
    • 
 
 
-
    class Triple {
+
    class Triple {
   static customName = 'Tripler';
   static description = 'I triple any number you provide';
   static triple(n = 1) {
@@ -81,7 +81,7 @@ 
    Calling static member
   this
   keyword.
    
 
-
    class StaticMethodCall {
+
    class StaticMethodCall {
   static staticProperty = 'static property';
   static staticMethod() {
     return 'Static method and ' + this.staticProperty + ' has been called';
@@ -106,7 +106,7 @@ 
    Calli
   the constructor: this.constructor.STATIC_METHOD_NAME()  /
   this.constructor.STATIC_PROPERTY_NAME
    
 
-
    class StaticMethodCall {
+
    class StaticMethodCall {
   constructor() {
     console.log(StaticMethodCall.staticProperty); // 'static property'
     console.log(this.constructor.staticProperty); // 'static property'
diff --git a/files/en-us/web/javascript/reference/global_objects/aggregateerror/aggregateerror/index.html b/files/en-us/web/javascript/reference/global_objects/aggregateerror/aggregateerror/index.html
index cf5ceff0d7ee753..360fdc5a0b3143d 100644
--- a/files/en-us/web/javascript/reference/global_objects/aggregateerror/aggregateerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/aggregateerror/aggregateerror/index.html
@@ -13,7 +13,7 @@
 
 
    Syntax
    
 
-
    new AggregateError(errors[, message])
    
+
    new AggregateError(errors[, message])
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/aggregateerror/index.html b/files/en-us/web/javascript/reference/global_objects/aggregateerror/index.html
index e95a67b6a4b40d9..d5c4921beedc382 100644
--- a/files/en-us/web/javascript/reference/global_objects/aggregateerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/aggregateerror/index.html
@@ -31,7 +31,7 @@ 
    Examples
    
 
 
    Catching an AggregateError
    
 
-
    Promise.any([
+
    Promise.any([
   Promise.reject(new Error("some error")),
 ]).catch(e => {
   console.log(e instanceof AggregateError); // true
@@ -43,7 +43,7 @@ 
    Catching an AggregateError
    
 
 
    Creating an AggregateError
    
 
-
    try {
+
    try {
   throw new AggregateError([
     new Error("some error"),
   ], 'Hello');
diff --git a/files/en-us/web/javascript/reference/global_objects/array/@@iterator/index.html b/files/en-us/web/javascript/reference/global_objects/array/@@iterator/index.html
index 3457e54efb53cb7..22fb90858cb1bac 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/@@iterator/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/@@iterator/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    arr[Symbol.iterator]()
    
+
    arr[Symbol.iterator]()
    
 
 
    Return value
    
 
@@ -38,12 +38,12 @@ 
    Iteration using for...of loop
    
 
 
    HTML
    
 
-
    <ul id="letterResult">
+
    <ul id="letterResult">
 </ul>
    
 
 
    JavaScript
    
 
-
    const arr = ['a', 'b', 'c'];
+
    const arr = ['a', 'b', 'c'];
 const eArr = arr[Symbol.iterator]();
 const letterResult = document.getElementById('letterResult');
 // your browser must support for..of loop
@@ -63,7 +63,7 @@ 
    Result
    
 
 
    Alternative iteration
    
 
-
    var arr = ['a', 'b', 'c', 'd', 'e'];
+
    var arr = ['a', 'b', 'c', 'd', 'e'];
 var eArr = arr[Symbol.iterator]();
 console.log(eArr.next().value); // a
 console.log(eArr.next().value); // b
@@ -82,7 +82,7 @@ 
    Use Case for brace notation
    
     href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/@@iterator">String
   object or a custom object.
    
 
-
    function logIterable(it) {
+
    function logIterable(it) {
  if (!(Symbol.iterator in Object.getPrototypeOf(it)
  /* or "Symbol.iterator in Object.__proto__"
     or "it[Symbol.iterator]" */)) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/@@species/index.html b/files/en-us/web/javascript/reference/global_objects/array/@@species/index.html
index 6e321f57a015a51..15eaf1cef9075a8 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/@@species/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/@@species/index.html
@@ -14,7 +14,7 @@
 
 
    Syntax
    
 
-
    Array[Symbol.species]
+
    Array[Symbol.species]
 
    
 
 
    Return value
    
@@ -34,7 +34,7 @@ 
    Species in ordinary objects
    
 
    The species property returns the default constructor function, which is
   the Array constructor for Array objects:
    
 
-
    Array[Symbol.species]; // function Array()
    
+
    Array[Symbol.species]; // function Array()
    
 
 
    Species in derived objects
    
 
@@ -43,7 +43,7 @@ 
    Species in derived objects
    
   want to overwrite this, in order to return parent Array objects in your
   derived class methods:
    
 
-
    class MyArray extends Array {
+
    class MyArray extends Array {
   // Overwrite MyArray species to the parent Array constructor
   static get [Symbol.species]() { return Array; }
 }
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/@@unscopables/index.html b/files/en-us/web/javascript/reference/global_objects/array/@@unscopables/index.html
index 6fe5ec94c3c20cf..7b13d805b1348e3 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/@@unscopables/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/@@unscopables/index.html
@@ -38,7 +38,7 @@ 
    Use in with environments
    
 
 
    The following code works fine in ES5 and below. However, in ECMAScript 2015 and later, the {{jsxref("Array.prototype.keys()")}} method was introduced. That means that inside with environments, "keys" would now be the method and not the variable. This is where now the built-in @@unscopables Array.prototype[@@unscopables] symbol property comes into play and prevents that some of the Array methods are being scoped into the with statement.
    
 
-
    var keys = [];
+
    var keys = [];
 
 with (Array.prototype) {
   keys.push('something');
diff --git a/files/en-us/web/javascript/reference/global_objects/array/array/index.html b/files/en-us/web/javascript/reference/global_objects/array/array/index.html
index 2c5a4cb345be1de..cf11e7059e8e5d1 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/array/index.html
@@ -14,7 +14,7 @@
 
 
    Syntax
    
 
-
    [element0, element1, ..., elementN]
+
    [element0, element1, ..., elementN]
 
 new Array(element0, element1[, ...[, elementN]])
 new Array(arrayLength)
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/at/index.html b/files/en-us/web/javascript/reference/global_objects/array/at/index.html
index 58ccbb3a42f4e83..78750dbe2962c25 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/at/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/at/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    arr.at(index)
    
+
    arr.at(index)
    
 
 
    Parameters
    
 
@@ -41,7 +41,7 @@ 
    Return the last value of an array
    
 
 
    The following example provides a function which returns the last element found in a specified array.
    
 
-
    +
     // Our array with items
 const cart = ['apple', 'banana', 'pear'];
 
@@ -64,7 +64,7 @@ 
    Comparing methods
    
 
 
    Here we compare different ways to select the penultimate (last but one) item of an {{jsxref('Array')}}. Whilst all below methods are valid, it highlights the succinctness and readability of the at() method.
    
 
-
    +
     // Our array with items
 const colors = ['red', 'green', 'blue'];
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/concat/index.html b/files/en-us/web/javascript/reference/global_objects/array/concat/index.html
index 987777d272e1017..d3077fa8dd90676 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/concat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/concat/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    const new_array = old_array.concat([value1[, value2[, ...[, valueN]]]])
    
+  class="brush: js">const new_array = old_array.concat([value1[, value2[, ...[, valueN]]]])
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/copywithin/index.html b/files/en-us/web/javascript/reference/global_objects/array/copywithin/index.html
index aa4b8fd19847fc1..a3b734ddfd153c2 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/copywithin/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/copywithin/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    arr.copyWithin(target[, start[, end]])
+
    arr.copyWithin(target[, start[, end]])
 
    
 
 
    Parameters
    
@@ -65,7 +65,7 @@ 
    Description
    
 
 
    Polyfill
    
 
-
    if (!Array.prototype.copyWithin) {
+
    if (!Array.prototype.copyWithin) {
   Object.defineProperty(Array.prototype, 'copyWithin', {
     value: function(target, start/*, end*/) {
     // Steps 1-2.
@@ -137,7 +137,7 @@ 
    Examples
    
 
 
    Using copyWithin
    
 
-
    [1, 2, 3, 4, 5].copyWithin(-2)
+
    [1, 2, 3, 4, 5].copyWithin(-2)
 // [1, 2, 3, 1, 2]
 
 [1, 2, 3, 4, 5].copyWithin(0, 3)
diff --git a/files/en-us/web/javascript/reference/global_objects/array/entries/index.html b/files/en-us/web/javascript/reference/global_objects/array/entries/index.html
index 0828c85d9b94d9f..e00fe85b11dc330 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/entries/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/entries/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    arr.entries()
    
+
    arr.entries()
    
 
 
    Return value
    
 
@@ -29,7 +29,7 @@ 
    Examples
    
 
 
    Iterating with index and element
    
 
-
    const a = ['a', 'b', 'c'];
+
    const a = ['a', 'b', 'c'];
 
 for (const [index, element] of a.entries())
   console.log(index, element);
@@ -42,7 +42,7 @@ 
    Iterating with index and element
    
 
    Using a for…of loop
    
 
-
    var a = ['a', 'b', 'c'];
+
    var a = ['a', 'b', 'c'];
 var iterator = a.entries();
 
 for (let e of iterator) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/every/index.html b/files/en-us/web/javascript/reference/global_objects/array/every/index.html
index 3a45659fe6c2ee6..7e02931fb6ef17f 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/every/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/every/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    arr.every(callback(element[, index[, array]])[, thisArg])
    
+  class="brush: js">arr.every(callback(element[, index[, array]])[, thisArg])
    
 
 
    Parameters
    
 
@@ -103,7 +103,7 @@ 
    Polyfill
    
   that callbackfn.call evaluates to the original value of
   {{jsxref("Function.prototype.call")}}.
    
 
-
    if (!Array.prototype.every) {
+
    if (!Array.prototype.every) {
   Array.prototype.every = function(callbackfn, thisArg) {
     'use strict';
     var T, k;
@@ -176,7 +176,7 @@ 
    Testing size of all array elementsThe following example tests whether all elements in the array are bigger than 10.
    
 
-
    function isBigEnough(element, index, array) {
+
    function isBigEnough(element, index, array) {
   return element >= 10;
 }
 [12, 5, 8, 130, 44].every(isBigEnough);   // false
@@ -188,7 +188,7 @@ 
    Using arrow functions
    
 
    Arrow
     functions provide a shorter syntax for the same test.
    
 
-
    [12, 5, 8, 130, 44].every(x => x >= 10);   // false
+
    [12, 5, 8, 130, 44].every(x => x >= 10);   // false
 [12, 54, 18, 130, 44].every(x => x >= 10); // true
    
 
 
    Affecting Initial Array
@@ -197,7 +197,7 @@ 
    Affecting Init
 
    The following examples tests the behavior of the every method when the
   array is modified.
    
 
-
    // ---------------
+
    // ---------------
 // Modifying items
 // ---------------
 let arr = [1, 2, 3, 4];
diff --git a/files/en-us/web/javascript/reference/global_objects/array/fill/index.html b/files/en-us/web/javascript/reference/global_objects/array/fill/index.html
index 6093edc4b35205c..4f96de890cbb84a 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/fill/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/fill/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    arr.fill(value[, start[, end]])
+
    arr.fill(value[, start[, end]])
 
    
 
 
    Parameters
    
@@ -50,7 +50,7 @@ 
    Description
    
 
 
    Polyfill
    
 
-
    if (!Array.prototype.fill) {
+
    if (!Array.prototype.fill) {
   Object.defineProperty(Array.prototype, 'fill', {
     value: function(value) {
 
@@ -102,7 +102,7 @@ 
    Examples
    
 
 
    Using fill
    
 
-
    [1, 2, 3].fill(4)                // [4, 4, 4]
+
    [1, 2, 3].fill(4)                // [4, 4, 4]
 [1, 2, 3].fill(4, 1)             // [1, 4, 4]
 [1, 2, 3].fill(4, 1, 2)          // [1, 4, 3]
 [1, 2, 3].fill(4, 1, 1)          // [1, 2, 3]
@@ -122,7 +122,7 @@ 
    Using fill() to create a matrix
 
 
    This example shows how to create a matrix of all 1, like the ones() function of Octave or MATLAB.
    
 
-
    const arr = new Array(3);
+
    const arr = new Array(3);
 for (let i=0; i<arr.length; i++) {
   arr[i] = new Array(4).fill(1); // Creating an array of size 4 and filled of 1
 }
diff --git a/files/en-us/web/javascript/reference/global_objects/array/filter/index.html b/files/en-us/web/javascript/reference/global_objects/array/filter/index.html
index c82e8a55dff3f04..4b6cbc46b72281e 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/filter/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/filter/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    let newArray = arr.filter(callback(currentValue[, index[, array]]) {
+
    let newArray = arr.filter(callback(currentValue[, index[, array]]) {
   // return element for newArray, if true
 }[, thisArg]);
 
    
@@ -75,7 +75,7 @@ 
    Polyfill
    
 
 
    You can work around this by inserting the following code at the beginning of your scripts, allowing use of filter() in ECMA-262 implementations which do not natively support it. This algorithm is exactly equivalent to the one specified in ECMA-262, 5th edition, assuming that fn.call evaluates to the original value of {{jsxref("Function.prototype.bind()")}}, and that {{jsxref("Array.prototype.push()")}} has its original value.
    
 
-
    if (!Array.prototype.filter){
+
    if (!Array.prototype.filter){
   Array.prototype.filter = function(func, thisArg) {
     'use strict';
     if ( ! ((typeof func === 'Function' || typeof func === 'function') && this) )
@@ -120,7 +120,7 @@ 
    Filtering out all small values
    
 
 
    The following example uses filter() to create a filtered array that has all elements with values less than 10 removed.
    
 
-
    function isBigEnough(value) {
+
    function isBigEnough(value) {
   return value >= 10
 }
 
@@ -132,7 +132,7 @@ 
    Find all prime numbers in an arrayThe following example returns all prime numbers in the array:
    
 
-
    const array = [-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13];
+
    const array = [-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13];
 
 function isPrime(num) {
   for (let i = 2; num > i; i++) {
@@ -149,7 +149,7 @@ 
    Filtering invalid entries from JSON
 
 
    The following example uses filter() to create a filtered json of all elements with non-zero, numeric id.
    
 
-
    let arr = [
+
    let arr = [
   { id: 15 },
   { id: -1 },
   { id: 0 },
@@ -185,7 +185,7 @@ 
    Searching in array
    
 
 
    Following example uses filter() to filter array content based on search criteria.
    
 
-
    let fruits = ['apple', 'banana', 'grapes', 'mango', 'orange']
+
    let fruits = ['apple', 'banana', 'grapes', 'mango', 'orange']
 
 /**
  * Filter array items based on search criteria (query)
@@ -201,7 +201,7 @@ 
    Searching in array
    
 
 
    ES2015 Implementation
    
 
-
    const fruits = ['apple', 'banana', 'grapes', 'mango', 'orange']
+
    const fruits = ['apple', 'banana', 'grapes', 'mango', 'orange']
 
 /**
  * Filter array items based on search criteria (query)
@@ -219,7 +219,7 @@ 
    Affecting Init
 
 
    The following examples tests the behavior of the filter method when the array is modified.
    
 
-
    // Modifying each words
+
    // Modifying each words
 let words = ['spray', 'limit', 'exuberant', 'destruction','elite', 'present']
 
 const modifiedWords = words.filter( (word, index, arr) => {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/find/index.html b/files/en-us/web/javascript/reference/global_objects/array/find/index.html
index c6da1a26a9f8d28..8ceb1b5342b0e49 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/find/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/find/index.html
@@ -35,7 +35,7 @@
 
    Syntax
    
 
 
    arr.find(callback(element[, index[, array]])[, thisArg])
    
+  class="brush: js">arr.find(callback(element[, index[, array]])[, thisArg])
    
 
 
    Parameters
    
 
@@ -102,7 +102,7 @@ 
    Polyfill
    
   available in all JavaScript implementations yet. However, you can polyfill
   Array.prototype.find with the following snippet:
    
 
-
    // https://tc39.github.io/ecma262/#sec-array.prototype.find
+
    // https://tc39.github.io/ecma262/#sec-array.prototype.find
 if (!Array.prototype.find) {
   Object.defineProperty(Array.prototype, 'find', {
     value: function(predicate) {
@@ -160,7 +160,7 @@ 
    Examples
    
 
    Find an object in an array by
   one of its properties
    
 
-
    const inventory = [
+
    const inventory = [
   {name: 'apples', quantity: 2},
   {name: 'bananas', quantity: 0},
   {name: 'cherries', quantity: 5}
@@ -176,7 +176,7 @@ 
    Find an object in a
 
    Using arrow function and destructuring
 
    
 
-
    const inventory = [
+
    const inventory = [
   {name: 'apples', quantity: 2},
   {name: 'bananas', quantity: 0},
   {name: 'cherries', quantity: 5}
@@ -191,7 +191,7 @@ 
    Find a prime number in an array
    
 
    The following example finds an element in the array that is a prime number (or returns
   {{jsxref("undefined")}} if there is no prime number):
    
 
-
    function isPrime(element, index, array) {
+
    function isPrime(element, index, array) {
   let start = 2;
   while (start <= Math.sqrt(element)) {
     if (element % start++ < 1) {
@@ -208,7 +208,7 @@ 
    Find a prime number in an array
    
 
    The following examples show that nonexistent and deleted elements are visited,
   and that the value passed to the callback is their value when visited:
    
 
-
    // Declare array with no elements at indexes 2, 3, and 4
+
    // Declare array with no elements at indexes 2, 3, and 4
 const array = [0,1,,,,5,6];
 
 // Shows all indexes, not just those with assigned values
diff --git a/files/en-us/web/javascript/reference/global_objects/array/findindex/index.html b/files/en-us/web/javascript/reference/global_objects/array/findindex/index.html
index 70dc8d30109d986..f9c270a69ed5e47 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/findindex/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/findindex/index.html
@@ -30,7 +30,7 @@
 
 
    Syntax
    
 
-
    arr.findIndex(callback( element[, index[, array]] )[, thisArg])
+
    arr.findIndex(callback( element[, index[, array]] )[, thisArg])
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/flat/index.html b/files/en-us/web/javascript/reference/global_objects/array/flat/index.html
index b64ceb1d410f48f..b7827f89fb0341d 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/flat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/flat/index.html
@@ -37,7 +37,7 @@ 
    Alternatives
    
 
 
    reduce and concat
    
 
-
    const arr = [1, 2, [3, 4]];
+
    const arr = [1, 2, [3, 4]];
 
 // To flat single level array
 arr.flat();
@@ -51,7 +51,7 @@ 
    reduce and concat
    
 
 
    reduce + concat + isArray + recursivity
    
 
-
    const arr = [1, 2, [3, 4, [5, 6]]];
+
    const arr = [1, 2, [3, 4, [5, 6]]];
 
 // to enable deep level flatten use recursion with reduce and concat
 function flatDeep(arr, d = 1) {
@@ -65,7 +65,7 @@ 
    reduce + concat + isArray + recursivi
 
 
    Use a stack
    
 
-
    // non recursive flatten deep using a stack
+
    // non recursive flatten deep using a stack
 // note that depth control is hard/inefficient as we will need to tag EACH value with its own depth
 // also possible w/o reversing on shift/unshift, but array OPs on the end tends to be faster
 function flatten(input) {
@@ -92,7 +92,7 @@ 
    Use a stack
    
 
 
    Use Generator function
    
 
-
    function* flatten(array, depth) {
+
    function* flatten(array, depth) {
     if(depth === undefined) {
       depth = 1;
     }
@@ -120,7 +120,7 @@ 
    Examples
    
 
 
    Flattening nested arrays
    
 
-
    const arr1 = [1, 2, [3, 4]];
+
    const arr1 = [1, 2, [3, 4]];
 arr1.flat();
 // [1, 2, 3, 4]
 
@@ -141,7 +141,7 @@ 
    Flattening and array holes
    
 
 
    The flat method removes empty slots in arrays:
    
 
-
    const arr5 = [1, 2, , 4, 5];
+
    const arr5 = [1, 2, , 4, 5];
 arr5.flat();
 // [1, 2, 4, 5]
 
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/flatmap/index.html b/files/en-us/web/javascript/reference/global_objects/array/flatmap/index.html
index f35e758d126c363..2f9eedd82ef20f6 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/flatmap/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/flatmap/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    var new_array = arr.flatMap(function callback(currentValue[, index[, array]]) {
+
    var new_array = arr.flatMap(function callback(currentValue[, index[, array]]) {
     // return element for new_array
 }[, thisArg])
    
 
@@ -60,7 +60,7 @@ 
    Alternative
    
 
 
    reduce() and concat()
    
 
-
    var arr = [1, 2, 3, 4];
+
    var arr = [1, 2, 3, 4];
 
 arr.flatMap(x => [x, x * 2]);
 // is equivalent to
@@ -83,7 +83,7 @@ 
    Examples
    
 
 
    map() and flatMap()
    
 
-
    let arr1 = [1, 2, 3, 4];
+
    let arr1 = [1, 2, 3, 4];
 
 arr1.map(x => [x * 2]);
 // [[2], [4], [6], [8]]
@@ -101,7 +101,7 @@ 
    map() and flatMap()
    
 
 
    Let's generate a list of words from a list of sentences.
    
 
-
    let arr1 = ["it's Sunny in", "", "California"];
+
    let arr1 = ["it's Sunny in", "", "California"];
 
 arr1.map(x => x.split(" "));
 // [["it's","Sunny","in"],[""],["California"]]
@@ -122,7 +122,7 @@ 
    For adding and removing item
   Return a 1-element array to keep the item, a multiple-element array to add items, or a
   0-element array to remove the item.
    
 
-
    // Let's say we want to remove all the negative numbers
+
    // Let's say we want to remove all the negative numbers
 // and split the odd numbers into an even number and a 1
 let a = [5, 4, -3, 20, 17, -33, -4, 18]
 //       |\  \  x   |  | \   x   x   |
diff --git a/files/en-us/web/javascript/reference/global_objects/array/foreach/index.html b/files/en-us/web/javascript/reference/global_objects/array/foreach/index.html
index 0755aac513ac4c4..d2c10dc0c1031fa 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/foreach/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/foreach/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    arr.forEach(callback(currentValue[, index[, array]]) {
+
    arr.forEach(callback(currentValue[, index[, array]]) {
   // execute something
 }[, thisArg]);
    
 
@@ -124,7 +124,7 @@ 
    forEach expects a synchronous fu
 
   
    Example Code
    
 
-  
    let ratings = [5, 4, 5];
+  
    let ratings = [5, 4, 5];
 let sum = 0;
 
 let sumFunction = async function (a, b)
@@ -154,7 +154,7 @@ 
    Polyfill
    
   that fun.call evaluates to the original value of
   {{jsxref("Function.prototype.call()")}}.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.18
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.18
 // Reference: https://es5.github.io/#x15.4.4.18
 
 if (!Array.prototype['forEach']) {
@@ -217,7 +217,7 @@ 
    Examples
    
 
    No operation for uninitialized values (sparse arrays)
    
 
 
    const arraySparse = [1,3,,7]
+  class="brush: js">const arraySparse = [1,3,,7]
 let numCallbackRuns = 0
 
 arraySparse.forEach(function(element) {
@@ -235,7 +235,7 @@ 
    No operation for uninitialized values (sparse arrays)
    
 
 
    Converting a for loop to forEach
    
 
-
    const items = ['item1', 'item2', 'item3']
+
    const items = ['item1', 'item2', 'item3']
 const copyItems = []
 
 // before
@@ -262,7 +262,7 @@ 
    Printing the contents of an array
    The following code logs a line for each element in an array:
    
 
-
    function logArrayElements(element, index, array) {
+
    function logArrayElements(element, index, array) {
   console.log('a[' + index + '] = ' + element)
 }
 
@@ -280,7 +280,7 @@ 
    Using thisArg
    
 
    The following (contrived) example updates an object's properties from each entry in the
   array:
    
 
-
    function Counter() {
+
    function Counter() {
   this.sum = 0
   this.count = 0
 }
@@ -319,7 +319,7 @@ 
    An object copy function
    
   and is presented to explain how Array.prototype.forEach() works by using
   ECMAScript 5 Object.* meta property functions.
    
 
-
    function copy(obj) {
+
    function copy(obj) {
   const copy = Object.create(Object.getPrototypeOf(obj))
   const propNames = Object.getOwnPropertyNames(obj)
 
@@ -346,7 +346,7 @@ 
    Modifying the array during iterati
 
 
    forEach() does not make a copy of the array before iterating.
    
 
-
    let words = ['one', 'two', 'three', 'four']
+
    let words = ['one', 'two', 'three', 'four']
 words.forEach(function(word) {
   console.log(word)
   if (word === 'two') {
@@ -363,7 +363,7 @@ 
    Flatten an array
    
 
    The following example is only here for learning purpose. If you want to flatten an
   array using built-in methods you can use {{jsxref("Array.prototype.flat()")}}.
    
 
-
    function flatten(arr) {
+
    function flatten(arr) {
   const result = []
 
   arr.forEach(function(i) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/from/index.html b/files/en-us/web/javascript/reference/global_objects/array/from/index.html
index 03702d2c842017a..38ba8e31a8894c0 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/from/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/from/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    Array.from(arrayLike [, mapFn [, thisArg]])
+
    Array.from(arrayLike [, mapFn [, thisArg]])
 
    
 
 
    Parameters
    
@@ -76,18 +76,18 @@ 
    Examples
    
 
 
    Array from a String
    
 
-
    Array.from('foo');
+
    Array.from('foo');
 // [ "f", "o", "o" ]
    
 
 
    Array from a Set
    
 
-
    const set = new Set(['foo', 'bar', 'baz', 'foo']);
+
    const set = new Set(['foo', 'bar', 'baz', 'foo']);
 Array.from(set);
 // [ "foo", "bar", "baz" ]
    
 
 
    Array from a Map
    
 
-
    const map = new Map([[1, 2], [2, 4], [4, 8]]);
+
    const map = new Map([[1, 2], [2, 4], [4, 8]]);
 Array.from(map);
 // [[1, 2], [2, 4], [4, 8]]
 
@@ -101,7 +101,7 @@ 
    Array from a Map
    
 
 
    Array from a NodeList
    
 
-
    // Create an array based on a property of DOM Elements
+
    // Create an array based on a property of DOM Elements
 const images = document.getElementsByTagName('img');
 const sources = Array.from(images, image => image.src);
 const insecureSources = sources.filter(link => link.startsWith('http://'));
    
@@ -109,7 +109,7 @@ 
    Array from a NodeList
    
 
    Array from an Array-like object
     (arguments)
    
 
-
    function f() {
+
    function f() {
   return Array.from(arguments);
 }
 
@@ -120,7 +120,7 @@ 
    Array from an Array-like obje
 
    Using arrow functions and
     Array.from()
    
 
-
    // Using an arrow function as the map function to
+
    // Using an arrow function as the map function to
 // manipulate the elements
 Array.from([1, 2, 3], x => x + x);
 // [2, 4, 6]
@@ -134,7 +134,7 @@ 
    Using arrow functions and
 
 
    Sequence generator (range)
    
 
-
    // Sequence generator function (commonly referred to as "range", e.g. Clojure, PHP etc)
+
    // Sequence generator function (commonly referred to as "range", e.g. Clojure, PHP etc)
 const range = (start, stop, step) => Array.from({ length: (stop - start) / step + 1}, (_, i) => start + (i * step));
 
 // Generate numbers range 0..4
@@ -193,7 +193,7 @@ 
    Polyfill
    
         ECMA-262.
    
 
    • 
 
-
    // Production steps of ECMA-262, Edition 6, 22.1.2.1
+
    // Production steps of ECMA-262, Edition 6, 22.1.2.1
 if (!Array.from) {
     Array.from = (function () {
         var symbolIterator;
diff --git a/files/en-us/web/javascript/reference/global_objects/array/includes/index.html b/files/en-us/web/javascript/reference/global_objects/array/includes/index.html
index 0acf967470c870d..a507adad1276032 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/includes/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/includes/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    arr.includes(valueToFind[, fromIndex])
+
    arr.includes(valueToFind[, fromIndex])
 
    
 
 
    Parameters
    
@@ -72,7 +72,7 @@ 
    Return value
    
 
 
    Examples
    
 
-
    [1, 2, 3].includes(2)      // true
+
    [1, 2, 3].includes(2)      // true
 [1, 2, 3].includes(4)      // false
 [1, 2, 3].includes(3, 3)   // false
 [1, 2, 3].includes(3, -1)  // true
@@ -85,7 +85,7 @@ 
    
 
    If fromIndex is greater than or equal to the length of the
   array, false is returned. The array will not be searched.
    
 
-
    let arr = ['a', 'b', 'c']
+
    let arr = ['a', 'b', 'c']
 
 arr.includes('c', 3)    // false
 arr.includes('c', 100)  // false
@@ -98,7 +98,7 @@ 
    Computed index is less than 0
    
   valueToFind. If the computed index is less or equal than
   -1 * arr.length, the entire array will be searched.
    
 
-
    // array length is 3
+
    // array length is 3
 // fromIndex is -100
 // computed index is 3 + (-100) = -97
 
@@ -120,7 +120,7 @@ 
    includes() used as a generic methodarguments object.
 
    
 
-
    (function() {
+
    (function() {
   console.log(Array.prototype.includes.call(arguments, 'a'))  // true
   console.log(Array.prototype.includes.call(arguments, 'd'))  // false
 })('a','b','c') 
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/index.html b/files/en-us/web/javascript/reference/global_objects/array/index.html
index c7d3f76cb96e96b..5e3c17238472f8a 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/index.html
@@ -23,7 +23,7 @@ 
    Common operations
    
 
 
    Create an Array
    
 
-
    let fruits = ['Apple', 'Banana']
+
    let fruits = ['Apple', 'Banana']
 
 console.log(fruits.length)
 // 2
@@ -31,7 +31,7 @@ 
    Common operations
    
 
 
    Access an Array item using the index position
    
 
-
    let first = fruits[0]
+
    let first = fruits[0]
 // Apple
 
 let last = fruits[fruits.length - 1]
@@ -40,7 +40,7 @@ 
    Common operations
    
 
 
    Loop over an Array
    
 
-
    fruits.forEach(function(item, index, array) {
+
    fruits.forEach(function(item, index, array) {
   console.log(item, index)
 })
 // Apple 0
@@ -49,31 +49,31 @@ 
    Common operations
    
 
 
    Add an item to the end of an Array
    
 
-
    let newLength = fruits.push('Orange')
+
    let newLength = fruits.push('Orange')
 // ["Apple", "Banana", "Orange"]
 
    
 
 
    Remove an item from the end of an Array
    
 
-
    let last = fruits.pop() // remove Orange (from the end)
+
    let last = fruits.pop() // remove Orange (from the end)
 // ["Apple", "Banana"]
 
    
 
 
    Remove an item from the beginning of an Array
    
 
-
    let first = fruits.shift() // remove Apple from the front
+
    let first = fruits.shift() // remove Apple from the front
 // ["Banana"]
 
    
 
 
    Add an item to the beginning of an Array
    
 
-
    let newLength = fruits.unshift('Strawberry') // add to the front
+
    let newLength = fruits.unshift('Strawberry') // add to the front
 // ["Strawberry", "Banana"]
 
    
 
 
    Find the index of an item in the Array
    
 
-
    fruits.push('Mango')
+
    fruits.push('Mango')
 // ["Strawberry", "Banana", "Mango"]
 
 let pos = fruits.indexOf('Banana')
@@ -82,13 +82,13 @@ 
    Common operations
    
 
 
    Remove an item by index position
    
 
-
    let removedItem = fruits.splice(pos, 1) // this is how to remove an item
+
    let removedItem = fruits.splice(pos, 1) // this is how to remove an item
 
 // ["Strawberry", "Mango"]
    
 
 
    Remove items from an index position
    
 
-
    let vegetables = ['Cabbage', 'Turnip', 'Radish', 'Carrot']
+
    let vegetables = ['Cabbage', 'Turnip', 'Radish', 'Carrot']
 console.log(vegetables)
 // ["Cabbage", "Turnip", "Radish", "Carrot"]
 
@@ -108,7 +108,7 @@ 
    Common operations
    
 
 
    Copy an Array
    
 
-
    let shallowCopy = fruits.slice() // this is how to make a copy
+
    let shallowCopy = fruits.slice() // this is how to make a copy
 // ["Strawberry", "Mango"]
 
    
 
@@ -118,7 +118,7 @@ 
    Accessing array elements
    
 
 
    Using an invalid index number returns undefined.
    
 
-
    let arr = ['this is the first element', 'this is the second element', 'this is the last element']
+
    let arr = ['this is the first element', 'this is the second element', 'this is the last element']
 console.log(arr[0])              // logs 'this is the first element'
 console.log(arr[1])              // logs 'this is the second element'
 console.log(arr[arr.length - 1]) // logs 'this is the last element'
@@ -126,19 +126,19 @@ 
    Accessing array elements
    
 
 
    Array elements are object properties in the same way that toString is a property (to be specific, however, toString() is a method). Nevertheless, trying to access an element of an array as follows throws a syntax error because the property name is not valid:
    
 
-
    console.log(arr.0) // a syntax error
+
    console.log(arr.0) // a syntax error
 
    
 
 
    There is nothing special about JavaScript arrays and the properties that cause this. JavaScript properties that begin with a digit cannot be referenced with dot notation and must be accessed using bracket notation.
    
 
 
    For example, if you had an object with a property named 3d, it can only be referenced using bracket notation.
    
 
-
    let years = [1950, 1960, 1970, 1980, 1990, 2000, 2010]
+
    let years = [1950, 1960, 1970, 1980, 1990, 2000, 2010]
 console.log(years.0)   // a syntax error
 console.log(years[0])  // works properly
 
    
 
-
    renderer.3d.setTexture(model, 'character.png')     // a syntax error
+
    renderer.3d.setTexture(model, 'character.png')     // a syntax error
 renderer['3d'].setTexture(model, 'character.png')  // works properly
 
    
 
@@ -146,7 +146,7 @@ 
    Accessing array elements
    
 
 
    The 2 in years[2] is coerced into a string by the JavaScript engine through an implicit toString conversion. As a result, '2' and '02' would refer to two different slots on the years object, and the following example could be true:
    
 
-
    console.log(years['2'] != years['02'])
+
    console.log(years['2'] != years['02'])
 
    
 
 
    Relationship between length and numerical properties
    
@@ -157,7 +157,7 @@ 
    Relationship betwe
 
 
    Other methods (e.g., {{jsxref("Array.push", "push()")}}, {{jsxref("Array.splice", "splice()")}}, etc.) also result in updates to an array's {{jsxref("Array.length", "length")}} property.
    
 
-
    const fruits = []
+
    const fruits = []
 fruits.push('banana', 'apple', 'peach')
 
 console.log(fruits.length) // 3
@@ -165,7 +165,7 @@ 
    Relationship betwe
 
 
    When setting a property on a JavaScript array when the property is a valid array index and that index is outside the current bounds of the array, the engine will update the array's {{jsxref("Array.length", "length")}} property accordingly:
    
 
-
    fruits[5] = 'mango'
+
    fruits[5] = 'mango'
 console.log(fruits[5])            // 'mango'
 console.log(Object.keys(fruits))  // ['0', '1', '2', '5']
 console.log(fruits.length)        // 6
@@ -173,7 +173,7 @@ 
    Relationship betwe
 
 
    Increasing the {{jsxref("Array.length", "length")}}.
    
 
-
    fruits.length = 10
+
    fruits.length = 10
 console.log(fruits)              // ['banana', 'apple', 'peach', empty x 2, 'mango', empty x 4]
 console.log(Object.keys(fruits)) // ['0', '1', '2', '5']
 console.log(fruits.length)       // 10
@@ -182,7 +182,7 @@ 
    Relationship betwe
 
 
    Decreasing the {{jsxref("Array.length", "length")}} property does, however, delete elements.
    
 
-
    fruits.length = 2
+
    fruits.length = 2
 console.log(Object.keys(fruits)) // ['0', '1']
 console.log(fruits.length)       // 2
 
    
@@ -195,7 +195,7 @@ 
    Creating an array using t
 
 
    To help explain these properties and elements, see this example and then refer to the table below:
    
 
-
    // Match one d followed by one or more b's followed by one d
+
    // Match one d followed by one or more b's followed by one d
 // Remember matched b's and the following d
 // Ignore case
 
@@ -349,7 +349,7 @@ 
    Creating an array
    
 
 
    The following example creates an array, msgArray, with a length of 0, then assigns values to msgArray[0] and msgArray[99], changing the length of the array to 100.
    
 
-
    let msgArray = []
+
    let msgArray = []
 msgArray[0] = 'Hello'
 msgArray[99] = 'world'
 
@@ -362,7 +362,7 @@ 
    Creating a two-dimensional array
    
 
 
    The following creates a chessboard as a two-dimensional array of strings. The first move is made by copying the 'p' in board[6][4] to board[4][4]. The old position at [6][4] is made blank.
    
 
-
    let board = [
+
    let board = [
   ['R','N','B','Q','K','B','N','R'],
   ['P','P','P','P','P','P','P','P'],
   [' ',' ',' ',' ',' ',' ',' ',' '],
@@ -382,7 +382,7 @@ 
    Creating a two-dimensional array
    
 
 
    Here is the output:
    
 
-
    R,N,B,Q,K,B,N,R
+
    R,N,B,Q,K,B,N,R
 P,P,P,P,P,P,P,P
  , , , , , , ,
  , , , , , , ,
@@ -403,7 +403,7 @@ 
    Creating a two-dimensional array
    
 
 
    Using an array to tabulate a set of values
    
 
-
    values = []
+
    values = []
 for (let x = 0; x < 10; x++){
  values.push([
   2 ** x,
@@ -414,7 +414,7 @@ 
    Using an array to tabulate a
 
 
    Results in
    
 
-
    // The first column is the index
+
    // The first column is the index
 0	1	0
 1	2	2
 2	4	8
diff --git a/files/en-us/web/javascript/reference/global_objects/array/indexof/index.html b/files/en-us/web/javascript/reference/global_objects/array/indexof/index.html
index 50fcf39b1d00635..c7eedc20a018c7d 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/indexof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/indexof/index.html
@@ -26,7 +26,7 @@
 
    Syntax
    
 
 
    arr.indexOf(searchElement[, fromIndex])
    
+  class="brush: js">arr.indexOf(searchElement[, fromIndex])
    
 
 
    Parameters
    
 
@@ -65,7 +65,7 @@ 
    Using indexOf()
    
 
 
    The following example uses indexOf() to locate values in an array.
    
 
-
    var array = [2, 9, 9];
+
    var array = [2, 9, 9];
 array.indexOf(2);     // 0
 array.indexOf(7);     // -1
 array.indexOf(9, 2);  // 2
@@ -76,7 +76,7 @@ 
    Using indexOf()
    
 
    Finding all the occurrences of an
   element
    
 
-
    var indices = [];
+
    var indices = [];
 var array = ['a', 'b', 'a', 'c', 'a', 'd'];
 var element = 'a';
 var idx = array.indexOf(element);
@@ -91,7 +91,7 @@ 
    Finding all the occurrences o
 
    Finding
   if an element exists in the array or not and updating the array
    
 
-
    function updateVegetablesCollection (veggies, veggie) {
+
    function updateVegetablesCollection (veggies, veggie) {
     if (veggies.indexOf(veggie) === -1) {
         veggies.push(veggie);
         console.log('New veggies collection is : ' + veggies);
@@ -117,7 +117,7 @@ 
    Polyfill
    
   one specified in ECMA-262, 5th edition, assuming {{jsxref("Global_Objects/TypeError",
   "TypeError")}} and {{jsxref("Math.abs()")}} have their original values.
    
 
-
    // This version tries to optimize by only checking for "in" when looking for undefined and
+
    // This version tries to optimize by only checking for "in" when looking for undefined and
 // skipping the definitely fruitless NaN search. Other parts are merely cosmetic conciseness.
 // Whether it is actually faster remains to be seen.
 if (!Array.prototype.indexOf)
@@ -147,7 +147,7 @@ 
    Polyfill
    
   ECMA standard, and are less concerned about performance or conciseness, then you may
   find this more descriptive polyfill to be more useful.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.14
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.14
 // Reference: https://es5.github.io/#x15.4.4.14
 if (!Array.prototype.indexOf) {
   Array.prototype.indexOf = function(searchElement, fromIndex) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/isarray/index.html b/files/en-us/web/javascript/reference/global_objects/array/isarray/index.html
index c95a37d100cb27d..ab2e106d0d93ed1 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/isarray/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/isarray/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    Array.isArray(value)
    
+
    Array.isArray(value)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/join/index.html b/files/en-us/web/javascript/reference/global_objects/array/join/index.html
index 058f97d3352b974..d73a3c814e61a7c 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/join/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/join/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    arr.join([separator])
    
+  class="brush: js">arr.join([separator])
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/keys/index.html b/files/en-us/web/javascript/reference/global_objects/array/keys/index.html
index 14b841ce86027d3..5c3924c728310be 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/keys/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/keys/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    arr.keys()
    
+
    arr.keys()
    
 
 
    Return value
    
 
@@ -35,7 +35,7 @@ 
    Examples
    
 
 
    Key iterator doesn't ignore holes
    
 
-
    var arr = ['a', , 'c'];
+
    var arr = ['a', , 'c'];
 var sparseKeys = Object.keys(arr);
 var denseKeys = [...arr.keys()];
 console.log(sparseKeys); // ['0', '2']
diff --git a/files/en-us/web/javascript/reference/global_objects/array/lastindexof/index.html b/files/en-us/web/javascript/reference/global_objects/array/lastindexof/index.html
index 02649787677acb5..33475abefc8de22 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/lastindexof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/lastindexof/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    arr.lastIndexOf(searchElement[, fromIndex])
+
    arr.lastIndexOf(searchElement[, fromIndex])
 
    
 
 
    Parameters
    
@@ -54,7 +54,7 @@ 
    Using lastIndexOf
    
 
 
    The following example uses lastIndexOf to locate values in an array.
    
 
-
    var numbers = [2, 5, 9, 2];
+
    var numbers = [2, 5, 9, 2];
 numbers.lastIndexOf(2);     // 3
 numbers.lastIndexOf(7);     // -1
 numbers.lastIndexOf(2, 3);  // 3
@@ -70,7 +70,7 @@ 
    Finding all the occurrences o
   element in a given array, using {{jsxref("Array.prototype.push", "push")}} to add them
   to another array as they are found.
    
 
-
    var indices = [];
+
    var indices = [];
 var array = ['a', 'b', 'a', 'c', 'a', 'd'];
 var element = 'a';
 var idx = array.lastIndexOf(element);
@@ -99,7 +99,7 @@ 
    Polyfill
    
   {{jsxref("Math.floor")}}, {{jsxref("Math.abs")}}, and {{jsxref("Math.min")}} have their
   original values.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.15
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.15
 // Reference: https://es5.github.io/#x15.4.4.15
 if (!Array.prototype.lastIndexOf) {
   Array.prototype.lastIndexOf = function(searchElement /*, fromIndex*/) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/length/index.html b/files/en-us/web/javascript/reference/global_objects/array/length/index.html
index 1386e77e4265d80..d43391526acc322 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/length/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/length/index.html
@@ -19,7 +19,7 @@ 
    Description
    
 
 
    The value of the length property is an integer with a positive sign and a value less than 2 to the 32nd power (232).
    
 
-
    var namelistA = new Array(4294967296); //2 to the 32nd power = 4294967296
+
    var namelistA = new Array(4294967296); //2 to the 32nd power = 4294967296
 var namelistC = new Array(-100) //negative sign
 
 console.log(namelistA.length); //RangeError: Invalid array length
@@ -34,7 +34,7 @@ 
    Description
    
 
 
    You can set the length property to truncate an array at any time. When you extend an array by changing its length property, the number of actual elements increases; for example, if you set length to 3 when it is currently 2, the array now contains 3 elements, which causes the third element to be a non-iterable empty slot.
    
 
-
    const arr = [1, 2];
+
    const arr = [1, 2];
 console.log(arr);
 // [ 1, 2 ]
 
@@ -63,7 +63,7 @@ 
    Iterating over an array
    
 
 
    In the following example, the array numbers is iterated through by looking at the length property. The value in each element is then doubled.
    
 
-
    var numbers = [1, 2, 3, 4, 5];
+
    var numbers = [1, 2, 3, 4, 5];
 var length = numbers.length;
 for (var i = 0; i < length; i++) {
   numbers[i] *= 2;
@@ -75,7 +75,7 @@ 
    Shortening an array
    
 
 
    The following example shortens the array numbers to a length of 3 if the current length is greater than 3.
    
 
-
    var numbers = [1, 2, 3, 4, 5];
+
    var numbers = [1, 2, 3, 4, 5];
 
 if (numbers.length > 3) {
   numbers.length = 3;
@@ -87,7 +87,7 @@ 
    Shortening an array
    
 
 
    Create empty array of fixed length
    
 
-
    var numbers = [];
+
    var numbers = [];
 numbers.length = 3;
 console.log(numbers); // [undefined, undefined, undefined]
 
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/map/index.html b/files/en-us/web/javascript/reference/global_objects/array/map/index.html
index 0778be2c8c8c0b2..6ce156b22c53de8 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/map/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/map/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    let newArray = arr.map(callback(currentValue[, index[, array]]) {
+
    let newArray = arr.map(callback(currentValue[, index[, array]]) {
   // return element for newArray, after executing something
 }[, thisArg]);
 
    
@@ -126,7 +126,7 @@ 
    Polyfill
    
   their original values and that callback.call evaluates to the original
   value of {{jsxref("Function.prototype.call")}}.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.19
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.19
 // Reference: https://es5.github.io/#x15.4.4.19
 if (!Array.prototype.map) {
 
@@ -225,7 +225,7 @@ 
    Mapping an arra
 
    The following code takes an array of numbers and creates a new array containing the
   square roots of the numbers in the first array.
    
 
-
    let numbers = [1, 4, 9]
+
    let numbers = [1, 4, 9]
 let roots = numbers.map(function(num) {
     return Math.sqrt(num)
 })
@@ -239,7 +239,7 @@ 
    Using map to reformat objects
 
    The following code takes an array of objects and creates a new array containing the
   newly reformatted objects.
    
 
-
    let kvArray = [{key: 1, value: 10},
+
    let kvArray = [{key: 1, value: 10},
                {key: 2, value: 20},
                {key: 3, value: 30}]
 
@@ -263,7 +263,7 @@ 
    Map
   argument is used with it. The argument will automatically be assigned from each element
   of the array as map loops through the original array.
    
 
-
    let numbers = [1, 4, 9]
+
    let numbers = [1, 4, 9]
 let doubles = numbers.map(function(num) {
   return num * 2
 })
@@ -277,7 +277,7 @@ 
    Using map generically
    
 
    This example shows how to use map on a {{jsxref("String")}} to get an array of bytes in
   the ASCII encoding representing the character values:
    
 
-
    let map = Array.prototype.map
+
    let map = Array.prototype.map
 let a = map.call('Hello World', function(x) {
   return x.charCodeAt(0)
 })
@@ -294,7 +294,7 @@ 
    Using map generically querySelec
 
    In this case, we return all the selected options' values on the screen:
 
    
 
-
    let elems = document.querySelectorAll('select option:checked')
+
    let elems = document.querySelectorAll('select option:checked')
 let values = Array.prototype.map.call(elems, function(obj) {
   return obj.value
 })
@@ -313,7 +313,7 @@ 
    Tricky use case
    
 
 
    Consider:
    
 
-
    ["1", "2", "3"].map(parseInt)
    
+
    ["1", "2", "3"].map(parseInt)
    
 
 
    While one might expect [1, 2, 3], the actual result is
   [1, NaN, NaN].
    
@@ -333,7 +333,7 @@ 
    Tricky use case
    
 
 
    Here is a concise example of the iteration steps:
    
 
-
    // parseInt(string, radix) -> map(parseInt(value, index))
+
    // parseInt(string, radix) -> map(parseInt(value, index))
 /*  first iteration  (index is 0): */ parseInt("1", 0)  // 1
 /*  second iteration (index is 1): */ parseInt("2", 1)  // NaN
 /*  third iteration  (index is 2): */ parseInt("3", 2)  // NaN
@@ -341,7 +341,7 @@ 
    Tricky use case
    
 
 
    Then let's talk about solutions.
    
 
-
    function returnInt(element) {
+
    function returnInt(element) {
   return parseInt(element, 10)
 }
 
@@ -364,7 +364,7 @@ 
    Tricky use case
    
 
    One alternative output of the map method being called with {{jsxref("parseInt")}} as a
   parameter runs as follows:
    
 
-
    let xs = ['10', '10', '10']
+
    let xs = ['10', '10', '10']
 
 xs = xs.map(parseInt)
 
@@ -375,7 +375,7 @@ 
    Mapped array contains undefined
    
 
 
    When {{jsxref("undefined")}} or nothing is returned:
    
 
-
    let numbers = [1, 2, 3, 4]
+
    let numbers = [1, 2, 3, 4]
 let filteredNumbers = numbers.map(function(num, index) {
   if (index < 3) {
      return num
diff --git a/files/en-us/web/javascript/reference/global_objects/array/of/index.html b/files/en-us/web/javascript/reference/global_objects/array/of/index.html
index 7507189960f50c8..a08792d64c94dc7 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/of/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/of/index.html
@@ -22,7 +22,7 @@
   implies an array of 7 empty slots, not slots with actual
   {{jsxref("undefined")}} values).
    
 
-
    Array.of(7); // [7]
+
    Array.of(7); // [7]
 Array(7); // array of 7 empty slots
 
 Array.of(1, 2, 3); // [1, 2, 3]
@@ -32,7 +32,7 @@
 
    Syntax
    
 
 
    Array.of(element0[, element1[, ...[, elementN]]])
    
+  class="brush: js">Array.of(element0[, element1[, ...[, elementN]]])
    
 
 
    Parameters
    
 
@@ -64,7 +64,7 @@ 
    Polyfill
    
 
    Running the following code before any other code will create Array.of() if
   it's not natively available.
    
 
-
    if (!Array.of) {
+
    if (!Array.of) {
   Array.of = function() {
     return Array.prototype.slice.call(arguments);
     // Or
@@ -81,7 +81,7 @@ 
    Examples
    
 
 
    Using Array.of
    
 
-
    Array.of(1);         // [1]
+
    Array.of(1);         // [1]
 Array.of(1, 2, 3);   // [1, 2, 3]
 Array.of(undefined); // [undefined]
 
    
diff --git a/files/en-us/web/javascript/reference/global_objects/array/pop/index.html b/files/en-us/web/javascript/reference/global_objects/array/pop/index.html
index d9b23ce87e690bc..9f9dee45a98a82c 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/pop/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/pop/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    arr.pop()
    
+
    arr.pop()
    
 
 
    Return value
    
 
@@ -54,7 +54,7 @@ 
    Removing the last element of an a
 
    The following code creates the myFish array containing four elements, then
   removes its last element.
    
 
-
    var myFish = ['angel', 'clown', 'mandarin', 'sturgeon'];
+
    var myFish = ['angel', 'clown', 'mandarin', 'sturgeon'];
 
 var popped = myFish.pop();
 
@@ -69,7 +69,7 @@ 
    Using apply( ) or call ( ) on
   elements and a length parameter, then removes its last element and decrements the length
   parameter.
    
 
-
    var myFish = {0:'angel', 1:'clown', 2:'mandarin', 3:'sturgeon', length: 4};
+
    var myFish = {0:'angel', 1:'clown', 2:'mandarin', 3:'sturgeon', length: 4};
 
 var popped = Array.prototype.pop.call(myFish); //same syntax for using apply( )
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/push/index.html b/files/en-us/web/javascript/reference/global_objects/array/push/index.html
index 4dc9c1fdc5813ea..695f66f53d7ad00 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/push/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/push/index.html
@@ -24,7 +24,7 @@
 
    Syntax
    
 
 
    arr.push([element1[, ...[, elementN]]])
    
+  class="brush: js">arr.push([element1[, ...[, elementN]]])
    
 
 
    Parameters
    
 
@@ -63,7 +63,7 @@ 
    Adding elements to an array
    
   appends two elements to it. The total variable contains the new length of
   the array.
    
 
-
    let sports = ['soccer', 'baseball']
+
    let sports = ['soccer', 'baseball']
 let total = sports.push('football', 'swimming')
 
 console.log(sports)  // ['soccer', 'baseball', 'football', 'swimming']
@@ -80,7 +80,7 @@ 
    Merging two arrays
    
   take is limited in practice. See {{jsxref("Function.apply", "apply()")}} for more
   details.
    
 
-
    let vegetables = ['parsnip', 'potato']
+
    let vegetables = ['parsnip', 'potato']
 let moreVegs = ['celery', 'beetroot']
 
 // Merge the second array into the first one
@@ -103,7 +103,7 @@ 
    Using an object in an array-li
   an array—and it just works, thanks to the way JavaScript allows us to establish the
   execution context in any way we want.
    
 
-
    let obj = {
+
    let obj = {
     length: 0,
 
     addElem: function addElem(elem) {
diff --git a/files/en-us/web/javascript/reference/global_objects/array/reduce/index.html b/files/en-us/web/javascript/reference/global_objects/array/reduce/index.html
index 4cf476b14762ea5..0acb3565ab7970e 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/reduce/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/reduce/index.html
@@ -41,7 +41,7 @@
 
    Syntax
    
 
 
    arr.reduce(callback( accumulator, currentValue, [, index[, array]] )[, initialValue])
    
+  class="brush: js">arr.reduce(callback( accumulator, currentValue, [, index[, array]] )[, initialValue])
    
 
 
    Parameters
    
 
@@ -122,7 +122,7 @@ 
    Description
    
   there can be up to four possible output types without
   initialValue, as shown in the following example:
    
 
-
    let maxCallback = ( acc, cur ) => Math.max( acc.x, cur.x );
+
    let maxCallback = ( acc, cur ) => Math.max( acc.x, cur.x );
 let maxCallback2 = ( max, cur ) => Math.max( max, cur );
 
 // reduce without initialValue
@@ -140,7 +140,7 @@ 
    How reduce() works
    
 
 
    Suppose the following use of reduce() occurred:
    
 
-
    [0, 1, 2, 3, 4].reduce(function(accumulator, currentValue, currentIndex, array) {
+
    [0, 1, 2, 3, 4].reduce(function(accumulator, currentValue, currentIndex, array) {
   return accumulator + currentValue
 })
 
    
@@ -202,13 +202,13 @@ 
    How reduce() works
    
   instead of a full function. The code below will produce the same output as the code in
   the block above:
    
 
-
    [0, 1, 2, 3, 4].reduce( (accumulator, currentValue, currentIndex, array) => accumulator + currentValue )
+
    [0, 1, 2, 3, 4].reduce( (accumulator, currentValue, currentIndex, array) => accumulator + currentValue )
 
    
 
 
    If you were to provide an initialValue as the second argument
   to reduce(), the result would look like this:
    
 
-
    [0, 1, 2, 3, 4].reduce((accumulator, currentValue, currentIndex, array) => {
+
    [0, 1, 2, 3, 4].reduce((accumulator, currentValue, currentIndex, array) => {
     return accumulator + currentValue
 }, 10)
 
    
@@ -272,7 +272,7 @@ 
    How reduce() works
    
 
 
    Polyfill
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.21
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.21
 // Reference: https://es5.github.io/#x15.4.4.21
 // https://tc39.github.io/ecma262/#sec-array.prototype.reduce
 if (!Array.prototype.reduce) {
@@ -348,7 +348,7 @@ 
    Examples
    
 
 
    Sum all the values of an array
    
 
-
    let sum = [0, 1, 2, 3].reduce(function (accumulator, currentValue) {
+
    let sum = [0, 1, 2, 3].reduce(function (accumulator, currentValue) {
   return accumulator + currentValue
 }, 0)
 // sum is 6
@@ -357,7 +357,7 @@ 
    Sum all the values of an array
    
 
 
    Alternatively written with an arrow function:
    
 
-
    let total = [ 0, 1, 2, 3 ].reduce(
+
    let total = [ 0, 1, 2, 3 ].reduce(
   ( accumulator, currentValue ) => accumulator + currentValue,
   0
 )
    
@@ -368,7 +368,7 @@ 
    Sum of values in an object array
    
   an initialValue, so that each item passes through your function.
 
    
 
-
    let initialValue = 0
+
    let initialValue = 0
 let sum = [{x: 1}, {x: 2}, {x: 3}].reduce(function (accumulator, currentValue) {
     return accumulator + currentValue.x
 }, initialValue)
@@ -378,7 +378,7 @@ 
    Sum of values in an object array
    
 
 
    Alternatively written with an arrow function:
    
 
-
    let initialValue = 0
+
    let initialValue = 0
 let sum = [{x: 1}, {x: 2}, {x: 3}].reduce(
     (accumulator, currentValue) => accumulator + currentValue.x
     , initialValue
@@ -388,7 +388,7 @@ 
    Sum of values in an object array
    
 
 
    Flatten an array of arrays
    
 
-
    let flattened = [[0, 1], [2, 3], [4, 5]].reduce(
+
    let flattened = [[0, 1], [2, 3], [4, 5]].reduce(
   function(accumulator, currentValue) {
     return accumulator.concat(currentValue)
   },
@@ -399,7 +399,7 @@ 
    Flatten an array of arrays
    
 
 
    Alternatively written with an arrow function:
    
 
-
    let flattened = [[0, 1], [2, 3], [4, 5]].reduce(
+
    let flattened = [[0, 1], [2, 3], [4, 5]].reduce(
   ( accumulator, currentValue ) => accumulator.concat(currentValue),
   []
 )
@@ -408,7 +408,7 @@ 
    Flatten an array of arrays
    
 
    Counting instances of values in an
   object
    
 
-
    let names = ['Alice', 'Bob', 'Tiff', 'Bruce', 'Alice']
+
    let names = ['Alice', 'Bob', 'Tiff', 'Bruce', 'Alice']
 
 let countedNames = names.reduce(function (allNames, name) {
   if (name in allNames) {
@@ -425,7 +425,7 @@ 
    Counting instances of values
 
 
    Grouping objects by a property
    
 
-
    let people = [
+
    let people = [
   { name: 'Alice', age: 21 },
   { name: 'Max', age: 20 },
   { name: 'Jane', age: 20 }
@@ -458,7 +458,7 @@ 
    Grouping objects by a property
    
   Bonding arrays contained in an array of objects using the spread operator and
   initialValue
    
 
-
    // friends - an array of objects
+
    // friends - an array of objects
 // where object field "books" is a list of favorite books
 let friends = [{
   name: 'Anna',
@@ -495,7 +495,7 @@ 
    Remove duplicate items in an array
 
    
 
-
    let myArray = ['a', 'b', 'a', 'b', 'c', 'e', 'e', 'c', 'd', 'd', 'd', 'd']
+
    let myArray = ['a', 'b', 'a', 'b', 'c', 'e', 'e', 'c', 'd', 'd', 'd', 'd']
 let myOrderedArray = myArray.reduce(function (accumulator, currentValue) {
   if (accumulator.indexOf(currentValue) === -1) {
     accumulator.push(currentValue)
@@ -512,7 +512,7 @@ 
    Replace .filter().map() with .reduce()
   {{jsxref("Array.reduce()")}}, thereby being more efficient. (If you like for loops, you
   can filter and map while traversing once with {{jsxref("Array.forEach()")}}).
    
 
-
    const numbers = [-5, 6, 2, 0,];
+
    const numbers = [-5, 6, 2, 0,];
 
 const doubledPositiveNumbers = numbers.reduce((accumulator, currentValue) => {
   if (currentValue > 0) {
@@ -526,7 +526,7 @@ 
    Replace .filter().map() with .reduce()
 
 
    Running Promises in Sequence
    
 
-
    /**
+
    /**
  * Runs promises from array of functions that can return promises
  * in chained manner
  *
@@ -573,7 +573,7 @@ 
    Running Promises in Sequence
    
 
 
    Function composition enabling piping
    
 
-
    // Building-blocks to use for composition
+
    // Building-blocks to use for composition
 const double = x => x + x
 const triple = x => 3 * x
 const quadruple = x => 4 * x
@@ -600,7 +600,7 @@ 
    Function composition enabling pipi
 
 
    Write map using reduce
    
 
-
    if (!Array.prototype.mapUsingReduce) {
+
    if (!Array.prototype.mapUsingReduce) {
   Array.prototype.mapUsingReduce = function(callback, thisArg) {
     return this.reduce(function(mappedArray, currentValue, index, array) {
       mappedArray[index] = callback.call(thisArg, currentValue, index, array)
diff --git a/files/en-us/web/javascript/reference/global_objects/array/reduceright/index.html b/files/en-us/web/javascript/reference/global_objects/array/reduceright/index.html
index 864fc26f1c8d5b3..c19ac54e1fba685 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/reduceright/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/reduceright/index.html
@@ -22,7 +22,7 @@
 
    Syntax
    
 
 
    arr.reduceRight(callback(accumulator, currentValue[, index[, array]])[, initialValue])
    
+  class="brush: js">arr.reduceRight(callback(accumulator, currentValue[, index[, array]])[, initialValue])
    
 
 
    Parameters
    
 
@@ -62,7 +62,7 @@ 
    Description
    
 
    The call to the reduceRight callback would look something like
   this:
    
 
-
    arr.reduceRight(function(accumulator, currentValue, index, array) {
+
    arr.reduceRight(function(accumulator, currentValue, index, array) {
   // ...
 });
 
    
@@ -85,7 +85,7 @@ 
    Description
    
 
 
    Some example run-throughs of the function would look like this:
    
 
-
    [0, 1, 2, 3, 4].reduceRight(function(accumulator, currentValue, index, array) {
+
    [0, 1, 2, 3, 4].reduceRight(function(accumulator, currentValue, index, array) {
   return accumulator + currentValue;
 });
 
    
@@ -146,7 +146,7 @@ 
    Description
    
 
    And if you were to provide an initialValue, the result would
   look like this:
    
 
-
    [0, 1, 2, 3, 4].reduceRight(function(accumulator, currentValue, index, array) {
+
    [0, 1, 2, 3, 4].reduceRight(function(accumulator, currentValue, index, array) {
   return accumulator + currentValue;
 }, 10);
 
    
@@ -216,7 +216,7 @@ 
    Polyfill
    
   by inserting the following code at the beginning of your scripts, allowing use of
   reduceRight in implementations which do not natively support it.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.22
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.22
 // Reference: https://es5.github.io/#x15.4.4.22
 if ('function' !== typeof Array.prototype.reduceRight) {
   Array.prototype.reduceRight = function(callback /*, initialValue*/) {
@@ -253,7 +253,7 @@ 
    Examples
    
 
 
    Sum up all values within an array
    
 
-
    var sum = [0, 1, 2, 3].reduceRight(function(a, b) {
+
    var sum = [0, 1, 2, 3].reduceRight(function(a, b) {
   return a + b;
 });
 // sum is 6
@@ -261,7 +261,7 @@ 
    Sum up all values within an array
    Flatten an array of arrays
    
 
-
    var flattened = [[0, 1], [2, 3], [4, 5]].reduceRight(function(a, b) {
+
    var flattened = [[0, 1], [2, 3], [4, 5]].reduceRight(function(a, b) {
     return a.concat(b);
 }, []);
 // flattened is [4, 5, 2, 3, 0, 1]
@@ -273,7 +273,7 @@ 
    Flatten an array of arrays
    
   Run a list of asynchronous functions with callbacks in series each passing their results
   to the next
    
 
-
    const waterfall = (...functions) => (callback, ...args) =>
+
    const waterfall = (...functions) => (callback, ...args) =>
   functions.reduceRight(
     (composition, fn) => (...results) => fn(composition, ...results),
     callback
@@ -317,7 +317,7 @@ 
    Flatten an array of arrays
    
 
    Difference between reduce
   and reduceRight
    
 
-
    var a = ['1', '2', '3', '4', '5'];
+
    var a = ['1', '2', '3', '4', '5'];
 var left  = a.reduce(function(prev, cur)      { return prev + cur; });
 var right = a.reduceRight(function(prev, cur) { return prev + cur; });
 
@@ -329,7 +329,7 @@ 
    Defining Composible Function
    
 
    The concept of compose function is simple it combines n functions. It’s a flowing
   right-to-left, calling each function with the output of the last one.
    
 
-
    /**
+
    /**
  * Function Composition is way in which result of one function can
  * be passed to another and so on.
  *
diff --git a/files/en-us/web/javascript/reference/global_objects/array/reverse/index.html b/files/en-us/web/javascript/reference/global_objects/array/reverse/index.html
index 23198f4f6b4c282..10a122d3ecb158e 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/reverse/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/reverse/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    arr.reverse()
    
+
    arr.reverse()
    
 
 
    Return value
    
 
@@ -48,7 +48,7 @@ 
    Reversing the elements in an arrayreverse() returns a reference to the
   reversed array a.
    
 
-
    const a = [1, 2, 3];
+
    const a = [1, 2, 3];
 
 console.log(a); // [1, 2, 3]
 
@@ -66,7 +66,7 @@ 
    Reversing the elements i
   reverse() returns a reference to the reversed array-like object
   a.
    
 
-
    const a = {0: 1, 1: 2, 2: 3, length: 3};
+
    const a = {0: 1, 1: 2, 2: 3, length: 3};
 
 console.log(a); // {0: 1, 1: 2, 2: 3, length: 3}
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/shift/index.html b/files/en-us/web/javascript/reference/global_objects/array/shift/index.html
index 2ab84bd0e97c39a..11b07c2ab219cba 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/shift/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/shift/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    arr.shift()
    
+
    arr.shift()
    
 
 
    Return value
    
 
@@ -53,7 +53,7 @@ 
    Removing an element from an array
    The following code displays the myFish array before and after removing its
   first element. It also displays the removed element:
    
 
-
    var myFish = ['angel', 'clown', 'mandarin', 'surgeon'];
+
    var myFish = ['angel', 'clown', 'mandarin', 'surgeon'];
 
 console.log('myFish before:', JSON.stringify(myFish));
 // myFish before: ['angel', 'clown', 'mandarin', 'surgeon']
@@ -73,7 +73,7 @@ 
    Using shift() method in while loop
    
 
-
    var names = ["Andrew", "Edward", "Paul", "Chris" ,"John"];
+
    var names = ["Andrew", "Edward", "Paul", "Chris" ,"John"];
 
 while( (i = names.shift()) !== undefined ) {
     console.log(i);
diff --git a/files/en-us/web/javascript/reference/global_objects/array/some/index.html b/files/en-us/web/javascript/reference/global_objects/array/some/index.html
index 94e55208ee02e8d..7382b14dbd64d24 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/some/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/some/index.html
@@ -27,7 +27,7 @@
 
    Syntax
    
 
 
    arr.some(callback(element[, index[, array]])[, thisArg])
    
+  class="brush: js">arr.some(callback(element[, index[, array]])[, thisArg])
    
 
 
    Parameters
    
 
@@ -104,7 +104,7 @@ 
    Polyfill
    
   that fun.call evaluates to the original value of
   {{jsxref("Function.prototype.call()")}}.
    
 
-
    // Production steps of ECMA-262, Edition 5, 15.4.4.17
+
    // Production steps of ECMA-262, Edition 5, 15.4.4.17
 // Reference: https://es5.github.io/#x15.4.4.17
 if (!Array.prototype.some) {
   Array.prototype.some = function(fun, thisArg) {
@@ -138,7 +138,7 @@ 
    Testing value of array elements
    
 
 
    The following example tests whether any element in the array is bigger than 10.
    
 
-
    function isBiggerThan10(element, index, array) {
+
    function isBiggerThan10(element, index, array) {
   return element > 10;
 }
 
@@ -151,7 +151,7 @@ 
    Testing array elements usi
 
    Arrow
     functions provide a shorter syntax for the same test.
    
 
-
    [2, 5, 8, 1, 4].some(x => x > 10);  // false
+
    [2, 5, 8, 1, 4].some(x => x > 10);  // false
 [12, 5, 8, 1, 4].some(x => x > 10); // true
    
 
 
    Checking whether a value exists in an
@@ -160,7 +160,7 @@ 
    Checking whether a value ex
 
    To mimic the function of the includes() method, this custom
   function returns true if the element exists in the array:
    
 
-
    const fruits = ['apple', 'banana', 'mango', 'guava'];
+
    const fruits = ['apple', 'banana', 'mango', 'guava'];
 
 function checkAvailability(arr, val) {
   return arr.some(function(arrVal) {
@@ -174,7 +174,7 @@ 
    Checking whether a value ex
 
    Checking whether a value
   exists using an arrow function
    
 
-
    const fruits = ['apple', 'banana', 'mango', 'guava'];
+
    const fruits = ['apple', 'banana', 'mango', 'guava'];
 
 function checkAvailability(arr, val) {
   return arr.some(arrVal => val === arrVal);
@@ -185,7 +185,7 @@ 
    Checking whethe
 
 
    Converting any value to Boolean
    
 
-
    const TRUTHY_VALUES = [true, 'true', 1];
+
    const TRUTHY_VALUES = [true, 'true', 1];
 
 function getBoolean(value) {
   'use strict';
diff --git a/files/en-us/web/javascript/reference/global_objects/array/sort/index.html b/files/en-us/web/javascript/reference/global_objects/array/sort/index.html
index a63bceb3c533791..b59b3f5408f77e4 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/sort/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/sort/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    arr.sort([compareFunction])
+
    arr.sort([compareFunction])
 
    
 
 
    Parameters
    
@@ -90,7 +90,7 @@ 
    Description
    
 
 
    So, the compare function has the following form:
    
 
-
    function compare(a, b) {
+
    function compare(a, b) {
   if (a is less than b by some ordering criterion) {
     return -1;
   }
@@ -106,7 +106,7 @@ 
    Description
    
   from a. The following function will sort the array in ascending order (if
   it doesn't contain Infinity and NaN):
    
 
-
    function compareNumbers(a, b) {
+
    function compareNumbers(a, b) {
   return a - b;
 }
 
    
@@ -114,7 +114,7 @@ 
    Description
    
 
    The sort method can be conveniently used with
   {{jsxref("Operators/function", "function expressions", "", 1)}}:
    
 
-
    var numbers = [4, 2, 5, 1, 3];
+
    var numbers = [4, 2, 5, 1, 3];
 numbers.sort(function(a, b) {
   return a - b;
 });
@@ -126,7 +126,7 @@ 
    Description
    
 
    ES2015 provides {{jsxref("Functions/Arrow_functions", "arrow function expressions", "",
   1)}} with even shorter syntax.
    
 
-
    let numbers = [4, 2, 5, 1, 3];
+
    let numbers = [4, 2, 5, 1, 3];
 numbers.sort((a, b) => a - b);
 console.log(numbers);
 
@@ -134,7 +134,7 @@ 
    Description
    
 
 
    Arrays of objects can be sorted by comparing the value of one of their properties.
    
 
-
    var items = [
+
    var items = [
   { name: 'Edward', value: 21 },
   { name: 'Sharpe', value: 37 },
   { name: 'And', value: 45 },
@@ -172,7 +172,7 @@ 
    Creating, displaying, and sort
   sorted arrays. The numeric arrays are sorted without a compare function, then sorted
   using one.
    
 
-
    var stringArray = ['Blue', 'Humpback', 'Beluga'];
+
    var stringArray = ['Blue', 'Humpback', 'Beluga'];
 var numericStringArray = ['80', '9', '700'];
 var numberArray = [40, 1, 5, 200];
 var mixedNumericArray = ['80', '9', '700', 40, 1, 5, 200];
@@ -201,7 +201,7 @@ 
    Creating, displaying, and sort
   function is used, numbers sort correctly whether they are numbers or numeric strings.
 
    
 
-
    stringArray: Blue,Humpback,Beluga
+
    stringArray: Blue,Humpback,Beluga
 Sorted: Beluga,Blue,Humpback
 
 numberArray: 40,1,5,200
@@ -224,7 +224,7 @@ 
    Sorting non-ASCII characters
    
   {{jsxref("String.localeCompare")}}. This function can compare those characters so they
   appear in the right order.
    
 
-
    var items = ['réservé', 'premier', 'communiqué', 'café', 'adieu', 'éclair'];
+
    var items = ['réservé', 'premier', 'communiqué', 'café', 'adieu', 'éclair'];
 items.sort(function (a, b) {
   return a.localeCompare(b);
 });
@@ -243,7 +243,7 @@ 
    Sorting with map
    
   sorting into a temporary array, sort the temporary array, and then traverse the
   temporary array to achieve the right order.
    
 
-
    // the array to be sorted
+
    // the array to be sorted
 var list = ['Delta', 'alpha', 'CHARLIE', 'bravo'];
 
 // temporary array holds objects with position and sort-value
diff --git a/files/en-us/web/javascript/reference/global_objects/array/splice/index.html b/files/en-us/web/javascript/reference/global_objects/array/splice/index.html
index eefbca5f2a4664c..478fc3eec68e9c9 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/splice/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/splice/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    let arrDeletedItems = arr.splice(start[, deleteCount[, item1[, item2[, ...]]]])
+
    let arrDeletedItems = arr.splice(start[, deleteCount[, item1[, item2[, ...]]]])
 
    
 
 
    Parameters
    
@@ -85,7 +85,7 @@ 
    Examples
    
 
    Remove 0 (zero) elements
   before index 2, and insert "drum"
    
 
-
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
 let removed = myFish.splice(2, 0, 'drum')
 
 // myFish is ["angel", "clown", "drum", "mandarin", "sturgeon"]
@@ -94,7 +94,7 @@ 
    Remove 0 (zero) e
 
    Remove 0 (zero)
   elements before index 2, and insert "drum" and "guitar"
    
 
-
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
 let removed = myFish.splice(2, 0, 'drum', 'guitar')
 
 // myFish is ["angel", "clown", "drum", "guitar", "mandarin", "sturgeon"]
@@ -103,7 +103,7 @@ 
    Remove
 
 
    Remove 1 element at index 3
    
 
-
    let myFish = ['angel', 'clown', 'drum', 'mandarin', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'drum', 'mandarin', 'sturgeon']
 let removed = myFish.splice(3, 1)
 
 // myFish is ["angel", "clown", "drum", "sturgeon"]
@@ -113,7 +113,7 @@ 
    Remove 1 element at index 3
    
 
    Remove 1 element at index 2, and
   insert "trumpet"
    
 
-
    let myFish = ['angel', 'clown', 'drum', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'drum', 'sturgeon']
 let removed = myFish.splice(2, 1, 'trumpet')
 
 // myFish is ["angel", "clown", "trumpet", "sturgeon"]
@@ -122,7 +122,7 @@ 
    Remove 1 element at inde
 
    Remove 2
   elements from index 0, and insert "parrot", "anemone" and "blue"
    
 
-
    let myFish = ['angel', 'clown', 'trumpet', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'trumpet', 'sturgeon']
 let removed = myFish.splice(0, 2, 'parrot', 'anemone', 'blue')
 
 // myFish is ["parrot", "anemone", "blue", "trumpet", "sturgeon"]
@@ -130,7 +130,7 @@ 
    Remov
 
 
    Remove 2 elements from index 2
    
 
-
    let myFish = ['parrot', 'anemone', 'blue', 'trumpet', 'sturgeon']
+
    let myFish = ['parrot', 'anemone', 'blue', 'trumpet', 'sturgeon']
 let removed = myFish.splice(2, 2)
 
 // myFish is ["parrot", "anemone", "sturgeon"]
@@ -138,7 +138,7 @@ 
    Remove 2 elements from index 2
    
 
 
    Remove 1 element from index -2
    
 
-
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
 let removed = myFish.splice(-2, 1)
 
 // myFish is ["angel", "clown", "sturgeon"]
@@ -146,7 +146,7 @@ 
    Remove 1 element from index -2
    
 
 
    Remove all elements from index 2
    
 
-
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
+
    let myFish = ['angel', 'clown', 'mandarin', 'sturgeon']
 let removed = myFish.splice(2)
 
 // myFish is ["angel", "clown"]
diff --git a/files/en-us/web/javascript/reference/global_objects/array/tolocalestring/index.html b/files/en-us/web/javascript/reference/global_objects/array/tolocalestring/index.html
index d82d353313ab3bb..c930f97d4b5ce87 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/tolocalestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/tolocalestring/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    arr.toLocaleString([locales[, options]]);
+
    arr.toLocaleString([locales[, options]]);
 
    
 
 
    Parameters
    
@@ -41,7 +41,7 @@ 
    Return value
    
 
 
    Polyfill
    
 
-
    // https://tc39.github.io/ecma402/#sup-array.prototype.tolocalestring
+
    // https://tc39.github.io/ecma402/#sup-array.prototype.tolocalestring
 if (!Array.prototype.toLocaleString) {
   Object.defineProperty(Array.prototype, 'toLocaleString', {
     value: function(locales, options) {
@@ -145,7 +145,7 @@ 
    Using locales and options
    
 
    Always display the currency for the strings and numbers in the prices
   array:
    
 
-
    var prices = ['￥7', 500, 8123, 12];
+
    var prices = ['￥7', 500, 8123, 12];
 prices.toLocaleString('ja-JP', { style: 'currency', currency: 'JPY' });
 
 // "￥7,￥500,￥8,123,￥12"
diff --git a/files/en-us/web/javascript/reference/global_objects/array/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/array/tosource/index.html
index 84f5e08a43f7267..b38520451a67c15 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/tosource/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    arr.toSource()
    
+
    arr.toSource()
    
 
 
    Return value
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/array/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/array/tostring/index.html
index b0bd6a7c586c2cd..bde782efb164270 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/tostring/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    arr.toString()
    
+
    arr.toString()
    
 
 
    Return value
    
 
@@ -43,7 +43,7 @@ 
    Examples
    
 
 
    Using toString
    
 
-
    const array1 = [1, 2, 'a', '1a'];
+
    const array1 = [1, 2, 'a', '1a'];
 
 console.log(array1.toString());
 // expected output: "1,2,a,1a"
diff --git a/files/en-us/web/javascript/reference/global_objects/array/unshift/index.html b/files/en-us/web/javascript/reference/global_objects/array/unshift/index.html
index 7c590ae6e0f3253..589789443dca543 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/unshift/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/unshift/index.html
@@ -18,7 +18,7 @@
 
    Syntax
    
 
 
    arr.unshift(element1[, ...[, elementN]])
    
+  class="brush: js">arr.unshift(element1[, ...[, elementN]])
    
 
 
    Parameters
    
 
@@ -52,7 +52,7 @@ 
    Description
    
 
 
    See example:
    
 
-
    let arr = [4, 5, 6]
+
    let arr = [4, 5, 6]
 
 arr.unshift(1, 2, 3)
 console.log(arr);
diff --git a/files/en-us/web/javascript/reference/global_objects/array/values/index.html b/files/en-us/web/javascript/reference/global_objects/array/values/index.html
index 244daa397c73400..25820504e9924fc 100644
--- a/files/en-us/web/javascript/reference/global_objects/array/values/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/array/values/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    arr.values()
    
+
    arr.values()
    
 
 
    Return value
    
 
@@ -31,7 +31,7 @@ 
    Examples
    
 
 
    Iteration using for...of loop
    
 
-
    var arr = ['a', 'b', 'c', 'd', 'e'];
+
    var arr = ['a', 'b', 'c', 'd', 'e'];
 var iterator = arr.values();
 
 for (let letter of iterator) {
@@ -43,11 +43,11 @@ 
    Iteration using for...of loop
    
   Array.prototype[Symbol.iterator].
    
 
 
    Array.prototype.values === Array.prototype[Symbol.iterator]      //true
    
+  class="brush: js">Array.prototype.values === Array.prototype[Symbol.iterator]      //true
    
 
 
    Iteration using .next()
    
 
-
    var arr = ['a', 'b', 'c', 'd', 'e'];
+
    var arr = ['a', 'b', 'c', 'd', 'e'];
 var iterator = arr.values();
 iterator.next();               // Object { value: "a", done: false }
 iterator.next().value;         // "b"
@@ -63,7 +63,7 @@ 
    Iteration using .next()
    
 
 
    example:
    
 
-
    var arr = ['a', 'b', 'c', 'd', 'e'];
+
    var arr = ['a', 'b', 'c', 'd', 'e'];
  var iterator = arr.values();
  for (let letter of iterator) {
  console.log(letter);
@@ -82,7 +82,7 @@ 
    Iteration using .next()
    
   object; instead it stores the address of the array used in its creation and so depends
   on the values stored in that array.
    
 
-
    var arr = ['a', 'b', 'c', 'd', 'e'];
+
    var arr = ['a', 'b', 'c', 'd', 'e'];
 var iterator = arr.values();
 console.log(iterator);        // Array Iterator {  }
 iterator.next().value;        // "a"
diff --git a/files/en-us/web/javascript/reference/global_objects/arraybuffer/@@species/index.html b/files/en-us/web/javascript/reference/global_objects/arraybuffer/@@species/index.html
index bfd5440cbc636bb..3167c00e344e674 100644
--- a/files/en-us/web/javascript/reference/global_objects/arraybuffer/@@species/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/arraybuffer/@@species/index.html
@@ -21,13 +21,13 @@ 
    Species in ordinary objects
    
 
 
    The species property returns the default constructor function, which is the ArrayBuffer constructor for ArrayBuffer objects:
    
 
-
    ArrayBuffer[Symbol.species]; // function ArrayBuffer()
    
+
    ArrayBuffer[Symbol.species]; // function ArrayBuffer()
    
 
 
    Species in derived objects
    
 
 
    In a derived collection object (e.g. your custom array buffer MyArrayBuffer), the MyArrayBuffer species is the MyArrayBuffer constructor. However, you might want to overwrite this, in order to return parent ArrayBuffer objects in your derived class methods:
    
 
-
    class MyArrayBuffer extends ArrayBuffer {
+
    class MyArrayBuffer extends ArrayBuffer {
   // Overwrite MyArrayBuffer species to the parent ArrayBuffer constructor
   static get [Symbol.species]() { return ArrayBuffer; }
 }
    
diff --git a/files/en-us/web/javascript/reference/global_objects/arraybuffer/arraybuffer/index.html b/files/en-us/web/javascript/reference/global_objects/arraybuffer/arraybuffer/index.html
index 5c6cd0eb59be216..9ea83fab88f9ff9 100644
--- a/files/en-us/web/javascript/reference/global_objects/arraybuffer/arraybuffer/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/arraybuffer/arraybuffer/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    new ArrayBuffer(length)
+
    new ArrayBuffer(length)
 
    
 
 
    Parameters
    
@@ -49,11 +49,11 @@ 
    Compatibility notes
    
   ArrayBuffer constructor as a function without new, will throw
   a {{jsxref("TypeError")}} from now on.
    
 
-
    var dv = ArrayBuffer(10);
+
    var dv = ArrayBuffer(10);
 // TypeError: calling a builtin ArrayBuffer constructor
 // without new is forbidden
    
 
-
    var dv = new ArrayBuffer(10);
    
+
    var dv = new ArrayBuffer(10);
    
 
 
    Examples
    
 
@@ -62,7 +62,7 @@ 
    Creating an ArrayBuffer
    
 
    In this example, we create a 8-byte buffer with a {{jsxref("Global_Objects/Int32Array",
   "Int32Array")}} view referring to the buffer:
    
 
-
    var buffer = new ArrayBuffer(8);
+
    var buffer = new ArrayBuffer(8);
 var view   = new Int32Array(buffer);
    
 
 
    Specifications
    
diff --git a/files/en-us/web/javascript/reference/global_objects/arraybuffer/bytelength/index.html b/files/en-us/web/javascript/reference/global_objects/arraybuffer/bytelength/index.html
index 79073253996d202..f66822a115d297c 100644
--- a/files/en-us/web/javascript/reference/global_objects/arraybuffer/bytelength/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/arraybuffer/bytelength/index.html
@@ -23,7 +23,7 @@ 
    Examples
    
 
 
    Using byteLength
    
 
-
    var buffer = new ArrayBuffer(8);
+
    var buffer = new ArrayBuffer(8);
 buffer.byteLength; // 8
 
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/arraybuffer/isview/index.html b/files/en-us/web/javascript/reference/global_objects/arraybuffer/isview/index.html
index 5485e04fca1dae0..b5babf4532c8357 100644
--- a/files/en-us/web/javascript/reference/global_objects/arraybuffer/isview/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/arraybuffer/isview/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    ArrayBuffer.isView(value)
    
+
    ArrayBuffer.isView(value)
    
 
 
    Parameters
    
 
@@ -43,7 +43,7 @@ 
    Examples
    
 
 
    Using isView
    
 
-
    ArrayBuffer.isView();                    // false
+
    ArrayBuffer.isView();                    // false
 ArrayBuffer.isView([]);                  // false
 ArrayBuffer.isView({});                  // false
 ArrayBuffer.isView(null);                // false
diff --git a/files/en-us/web/javascript/reference/global_objects/arraybuffer/slice/index.html b/files/en-us/web/javascript/reference/global_objects/arraybuffer/slice/index.html
index 03763cfb00b2f4c..3f6b2934cf6b873 100644
--- a/files/en-us/web/javascript/reference/global_objects/arraybuffer/slice/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/arraybuffer/slice/index.html
@@ -25,7 +25,7 @@
 
    Syntax
    
 
 
    arraybuffer.slice(begin[, end])
    
+  class="brush: js">arraybuffer.slice(begin[, end])
    
 
 
    Parameters
    
 
@@ -58,7 +58,7 @@ 
    Examples
    
 
 
    Copying an ArrayBuffer
    
 
-
    const buf1 = new ArrayBuffer(8);
+
    const buf1 = new ArrayBuffer(8);
 const buf2 = buf1.slice(0);
 
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/asyncfunction/index.html b/files/en-us/web/javascript/reference/global_objects/asyncfunction/index.html
index 1bc7669c21eceb8..cde9a3e4dda9e8b 100644
--- a/files/en-us/web/javascript/reference/global_objects/asyncfunction/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/asyncfunction/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    new AsyncFunction([arg1[, arg2[, ...argN]],] functionBody)
    
+  class="brush: js">new AsyncFunction([arg1[, arg2[, ...argN]],] functionBody)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/add/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/add/index.html
index 98c6c3428da7257..f44e51d569eb798 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/add/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/add/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Atomics.add(typedArray, index, value)
+
    Atomics.add(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -60,7 +60,7 @@ 
    Examples
    
 
 
    Using add()
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 
 Atomics.add(ta, 0, 12); // returns 0, the old value
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/and/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/and/index.html
index 404f6f1c1250d39..6a5daaaed43173b 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/and/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/and/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Atomics.and(typedArray, index, value)
+
    Atomics.and(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -96,7 +96,7 @@ 
    Description
    
 
    For example, a bitwise AND of 5 & 1 results in 0001 which
   is 1 in decimal.
    
 
-
    5  0101
+
    5  0101
 1  0001
    ----
 1  0001
    
@@ -105,7 +105,7 @@ 
    Examples
    
 
 
    Using and()
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 ta[0] = 5;
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/compareexchange/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/compareexchange/index.html
index f8e1d8f6ce582bc..ebae895737ba296 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/compareexchange/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/compareexchange/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    Atomics.compareExchange(typedArray, index, expectedValue, replacementValue)
+
    Atomics.compareExchange(typedArray, index, expectedValue, replacementValue)
 
    
 
 
    Parameters
    
@@ -64,7 +64,7 @@ 
    Examples
    
 
 
    Using compareExchange()
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 ta[0] = 7;
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/exchange/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/exchange/index.html
index 0b8e05063ff0d2f..914c50f149e7446 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/exchange/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/exchange/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Atomics.exchange(typedArray, index, value)
+
    Atomics.exchange(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -60,7 +60,7 @@ 
    Examples
    
 
 
    Using exchange()
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 
 Atomics.exchange(ta, 0, 12); // returns 0, the old value
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/index.html
index 63ad7a294a43417..bc7ce1b64d3b617 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/index.html
@@ -56,7 +56,7 @@ 
    Examples
    
 
 
    Using Atomics
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 
 ta[0]; // 0
@@ -95,18 +95,18 @@ 
    Waiting and notifiying
    
 
 
    Given a shared Int32Array:
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const int32 = new Int32Array(sab);
 
    
 
 
    A reading thread is sleeping and waiting on location 0 which is expected to be 0. As long as that is true, it will not go on. However, once the writing thread has stored a new value, it will be notified by the writing thread and return the new value (123).
    
 
-
    Atomics.wait(int32, 0, 0);
+
    Atomics.wait(int32, 0, 0);
 console.log(int32[0]); // 123
    
 
 
    A writing thread stores a new value and notifies the waiting thread once it has written:
    
 
-
    console.log(int32[0]); // 0;
+
    console.log(int32[0]); // 0;
 Atomics.store(int32, 0, 123);
 Atomics.notify(int32, 0, 1);
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/islockfree/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/islockfree/index.html
index a16bf63543daf83..aa3fa5ea6cf2499 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/islockfree/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/islockfree/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    Atomics.isLockFree(size)
+
    Atomics.isLockFree(size)
 
    
 
 
    Parameters
    
@@ -38,7 +38,7 @@ 
    Examples
    
 
 
    Using isLockFree
    
 
-
    Atomics.isLockFree(1); // true
+
    Atomics.isLockFree(1); // true
 Atomics.isLockFree(2); // true
 Atomics.isLockFree(3); // false
 Atomics.isLockFree(4); // true
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/load/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/load/index.html
index de9a8e524578232..6260c1337acf94d 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/load/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/load/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    Atomics.load(typedArray, index)
+
    Atomics.load(typedArray, index)
 
    
 
 
    Parameters
    
@@ -48,7 +48,7 @@ 
    Examples
    
 
 
    Using load
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 
 Atomics.add(ta, 0, 12);
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/notify/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/notify/index.html
index 71e4802c135ba81..4b0c5a4b6dc5bfb 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/notify/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/notify/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    Atomics.notify(typedArray, index, count)
+
    Atomics.notify(typedArray, index, count)
 
    
 
 
    Parameters
    
@@ -58,7 +58,7 @@ 
    Using notify
    
 
 
    Given a shared Int32Array:
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const int32 = new Int32Array(sab);
 
    
 
@@ -66,13 +66,13 @@ 
    Using notify
    
   long as that is true, it will not go on. However, once the writing thread has stored a
   new value, it will be notified by the writing thread and return the new value (123).
    
 
-
    Atomics.wait(int32, 0, 0);
+
    Atomics.wait(int32, 0, 0);
 console.log(int32[0]); // 123
    
 
 
    A writing thread stores a new value and notifies the waiting thread once it has
   written:
    
 
-
    console.log(int32[0]); // 0;
+
    console.log(int32[0]); // 0;
 Atomics.store(int32, 0, 123);
 Atomics.notify(int32, 0, 1);
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/or/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/or/index.html
index 1679287fa59ab1d..224d144ef590de6 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/or/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/or/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Atomics.or(typedArray, index, value)
+
    Atomics.or(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -96,7 +96,7 @@ 
    Description
    
 
    For example, a bitwise OR of 5 | 1 results in 0101 which is 5
   in decimal.
    
 
-
    5  0101
+
    5  0101
 1  0001
    ----
 5  0101
@@ -106,7 +106,7 @@ 
    Examples
    
 
 
    Using or
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 ta[0] = 2;
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/store/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/store/index.html
index 4db079ba53d11ab..8b724629547d26f 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/store/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/store/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    Atomics.store(typedArray, index, value)
+
    Atomics.store(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -58,7 +58,7 @@ 
    Examples
    
 
 
    Using store()
    
 
-
    var sab = new SharedArrayBuffer(1024);
+
    var sab = new SharedArrayBuffer(1024);
 var ta = new Uint8Array(sab);
 
 Atomics.store(ta, 0, 12); // 12
    
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/sub/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/sub/index.html
index a903550289a799b..ba31234c577a731 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/sub/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/sub/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    Atomics.sub(typedArray, index, value)
+
    Atomics.sub(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -54,7 +54,7 @@ 
    Examples
    
 
 
    Using sub
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 ta[0] = 48;
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/wait/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/wait/index.html
index 31f61593813f74a..dcfc235b2b6ae42 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/wait/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/wait/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    Atomics.wait(typedArray, index, value[, timeout])
+
    Atomics.wait(typedArray, index, value[, timeout])
 
    
 
 
    Parameters
    
@@ -57,7 +57,7 @@ 
    Using wait()
    
 
 
    Given a shared Int32Array:
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const int32 = new Int32Array(sab);
 
    
 
@@ -65,13 +65,13 @@ 
    Using wait()
    
   long as that is true, it will not go on. However, once the writing thread has stored a
   new value, it will be notified by the writing thread and return the new value (123).
    
 
-
    Atomics.wait(int32, 0, 0);
+
    Atomics.wait(int32, 0, 0);
 console.log(int32[0]); // 123
    
 
 
    A writing thread stores a new value and notifies the waiting thread once it has
   written:
    
 
-
    console.log(int32[0]); // 0;
+
    console.log(int32[0]); // 0;
 Atomics.store(int32, 0, 123);
 Atomics.notify(int32, 0, 1);
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/atomics/xor/index.html b/files/en-us/web/javascript/reference/global_objects/atomics/xor/index.html
index 661c630606aba70..a3de5ddc51d51b2 100644
--- a/files/en-us/web/javascript/reference/global_objects/atomics/xor/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/atomics/xor/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    Atomics.xor(typedArray, index, value)
+
    Atomics.xor(typedArray, index, value)
 
    
 
 
    Parameters
    
@@ -88,7 +88,7 @@ 
    Description
    
 
    For example, a bitwise XOR of 5 ^ 1 results in 0100 which is
   4 in decimal.
    
 
-
    5  0101
+
    5  0101
 1  0001
    ----
 4  0100
@@ -98,7 +98,7 @@ 
    Examples
    
 
 
    Using xor
    
 
-
    const sab = new SharedArrayBuffer(1024);
+
    const sab = new SharedArrayBuffer(1024);
 const ta = new Uint8Array(sab);
 ta[0] = 5;
 
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/asintn/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/asintn/index.html
index d2ef9967fba6e13..af3fbfcb259fe76 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/asintn/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/asintn/index.html
@@ -24,7 +24,7 @@
 
    Syntax
    
 
 
    BigInt.asIntN(width, bigint);
    
+  class="brush: js">BigInt.asIntN(width, bigint);
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/asuintn/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/asuintn/index.html
index 0f26c4fa707bf9f..321997239849952 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/asuintn/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/asuintn/index.html
@@ -24,7 +24,7 @@
 
    Syntax
    
 
 
    BigInt.asUintN(width, bigint);
    
+  class="brush: js">BigInt.asUintN(width, bigint);
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/bigint/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/bigint/index.html
index 952c67cb5ba6636..bfebb3c049700c4 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/bigint/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/bigint/index.html
@@ -14,7 +14,7 @@
 
 
    Syntax
    
 
-
    BigInt(value);
+
    BigInt(value);
 
    
 
 
    Parameters
    
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/index.html
index 4098f54ef7a283c..88ffd274b96536a 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/index.html
@@ -15,7 +15,7 @@ 
    Description
    
 
 
    A BigInt is created by appending n to the end of an integer literal — 10n — or by calling the function BigInt().
    
 
-
    const previouslyMaxSafeInteger = 9007199254740991n
+
    const previouslyMaxSafeInteger = 9007199254740991n
 
 const alsoHuge = BigInt(9007199254740991)
 // ↪ 9007199254740991n
@@ -39,13 +39,13 @@ 
    Type information
    
 
 
    When tested against typeof, a BigInt will give "bigint":
    
 
-
    typeof 1n === 'bigint'           // true
+
    typeof 1n === 'bigint'           // true
 typeof BigInt('1') === 'bigint'  // true
 
    
 
 
    When wrapped in an Object, a BigInt will be considered as a normal "object" type:
    
 
-
    typeof Object(1n) === 'object'  // true
+
    typeof Object(1n) === 'object'  // true
 
    
 
 
    Operators
    
@@ -56,7 +56,7 @@ 
    Operators
    
 
 
    Also unsupported is the unary operator (+), in order to not break asm.js.
    
 
-
    const previousMaxSafe = BigInt(Number.MAX_SAFE_INTEGER)
+
    const previousMaxSafe = BigInt(Number.MAX_SAFE_INTEGER)
 // ↪ 9007199254740991n
 
 const maxPlusOne = previousMaxSafe + 1n
@@ -89,7 +89,7 @@ 
    Operators
    
 
    An operation with a fractional result will be truncated when used with a BigInt.
    
 
 
-
    const expected = 4n / 2n
+
    const expected = 4n / 2n
 // ↪ 2n
 
 const rounded = 5n / 2n
@@ -101,7 +101,7 @@ 
    Comparisons
    
 
 
    A BigInt is not strictly equal to a Number, but it is loosely so:
    
 
-
    0n === 0
+
    0n === 0
 // ↪ false
 
 0n == 0
@@ -109,7 +109,7 @@ 
    Comparisons
    
 
 
    A Number and a BigInt may be compared as usual:
    
 
-
    1n < 2
+
    1n < 2
 // ↪ true
 
 2n > 1
@@ -126,7 +126,7 @@ 
    Comparisons
    
 
 
    They may be mixed in arrays and sorted:
    
 
-
    const mixed = [4n, 6, -12n, 10, 4, 0, 0n]
+
    const mixed = [4n, 6, -12n, 10, 4, 0, 0n]
 // ↪  [4n, 6, -12n, 10, 4, 0, 0n]
 
 mixed.sort() // default sorting behavior
@@ -143,7 +143,7 @@ 
    Comparisons
    
 
 
    Note that comparisons with Object-wrapped BigInts act as with other objects, only indicating equality when the same object instance is compared:
    
 
-
    0n === Object(0n)          // false
+
    0n === Object(0n)          // false
 Object(0n) === Object(0n)  // false
 
 const o = Object(0n)
@@ -160,7 +160,7 @@ 
    Conditionals
    
  
  • within a conditional test like an if statement.
    • 
 

 
-
if (0n) {
+
if (0n) {
   console.log('Hello from the if!')
 } else {
   console.log('Hello from the else!')
@@ -228,18 +228,18 @@ 
Use within JSON

 
 
Using JSON.stringify() with any BigInt value will raise a TypeError as BigInt values aren't serialized in JSON by default. However, you can implement your own toJSON method if needed:

 
-
BigInt.prototype.toJSON = function() { return this.toString()  }

+
BigInt.prototype.toJSON = function() { return this.toString()  }

 
 
Instead of throwing, JSON.stringify now produces a string like this:

 
-
JSON.stringify(BigInt(1))
+
JSON.stringify(BigInt(1))
 // '"1"'

 
 
Examples

 
 
Calculating Primes

 
-
// Returns true if passed BigInt is a prime number
+
// Returns true if passed BigInt is a prime number
 function isPrime(p) {
   for (let i = 2n; i * i <= p; i++) {
     if (p % i === 0n) return false;
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/tolocalestring/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/tolocalestring/index.html
index 287ee3d688e57ef..9e6e898396be44f 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/tolocalestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/tolocalestring/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
bigIntObj.toLocaleString([locales [, options]])

+  class="brush: js">bigIntObj.toLocaleString([locales [, options]])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/tostring/index.html
index 4195bc93a3a9a04..2b851250e657788 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/tostring/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
bigIntObj.toString([radix])

+  class="brush: js">bigIntObj.toString([radix])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/bigint/valueof/index.html b/files/en-us/web/javascript/reference/global_objects/bigint/valueof/index.html
index b951ae6402568c7..92298b982e71691 100644
--- a/files/en-us/web/javascript/reference/global_objects/bigint/valueof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/bigint/valueof/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
bigIntObj.valueOf()

+
bigIntObj.valueOf()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/biguint64array/biguint64array/index.html b/files/en-us/web/javascript/reference/global_objects/biguint64array/biguint64array/index.html
index a4a514e6b9fdbd3..cbfa501ddd63d5f 100644
--- a/files/en-us/web/javascript/reference/global_objects/biguint64array/biguint64array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/biguint64array/biguint64array/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
new BigUint64Array();
+  class="brush: js">new BigUint64Array();
 new BigUint64Array(length);
 new BigUint64Array(typedArray);
 new BigUint64Array(object);
diff --git a/files/en-us/web/javascript/reference/global_objects/boolean/boolean/index.html b/files/en-us/web/javascript/reference/global_objects/boolean/boolean/index.html
index 029c20cf3a1c94f..81c1276884b65a8 100644
--- a/files/en-us/web/javascript/reference/global_objects/boolean/boolean/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/boolean/boolean/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
new Boolean([value])

+
new Boolean([value])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/boolean/index.html b/files/en-us/web/javascript/reference/global_objects/boolean/index.html
index dc5036ba80cda1a..8dcca4c200ce2e4 100644
--- a/files/en-us/web/javascript/reference/global_objects/boolean/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/boolean/index.html
@@ -19,7 +19,7 @@ 
Description

 
 
Any object of which the value is not {{jsxref("undefined")}} or {{jsxref("null")}}, including a Boolean object whose value is false, evaluates to true when passed to a conditional statement. For example, the condition in the following {{jsxref("Statements/if...else", "if")}} statement evaluates to true:

 
-
var x = new Boolean(false);
+
var x = new Boolean(false);
 if (x) {
   // this code is executed
 }
@@ -27,7 +27,7 @@ 
Description

 
 
This behavior does not apply to Boolean primitives. For example, the condition in the following {{jsxref("Statements/if...else", "if")}} statement evaluates to false:

 
-
var x = false;
+
var x = false;
 if (x) {
   // this code is not executed
 }
@@ -35,14 +35,14 @@ 
Description

 
 
Do not use a Boolean object to convert a non-boolean value to a boolean value. To perform this task, instead, use Boolean as a function, or a double NOT operator:

 
-
var x = Boolean(expression);     // use this...
+
var x = Boolean(expression);     // use this...
 var x = !!(expression);          // ...or this
 var x = new Boolean(expression); // don't use this!
 

 
 
If you specify any object, including a Boolean object whose value is false, as the initial value of a Boolean object, the new Boolean object has a value of true.

 
-
var myFalse = new Boolean(false);   // initial value of false
+
var myFalse = new Boolean(false);   // initial value of false
 var g = Boolean(myFalse);       // initial value of true
 var myString = new String('Hello'); // string object
 var s = Boolean(myString);      // initial value of true
@@ -74,7 +74,7 @@ 
Examples

 
 
Creating Boolean objects with an initial value of false

 
-
var bNoParam = new Boolean();
+
var bNoParam = new Boolean();
 var bZero = new Boolean(0);
 var bNull = new Boolean(null);
 var bEmptyString = new Boolean('');
@@ -83,7 +83,7 @@ 
Creating Boolea
 
 
Creating Boolean objects with an initial value of true

 
-
var btrue = new Boolean(true);
+
var btrue = new Boolean(true);
 var btrueString = new Boolean('true');
 var bfalseString = new Boolean('false');
 var bSuLin = new Boolean('Su Lin');
diff --git a/files/en-us/web/javascript/reference/global_objects/boolean/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/boolean/tosource/index.html
index 7e3b750d50d0123..90551f84c3c3d34 100644
--- a/files/en-us/web/javascript/reference/global_objects/boolean/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/boolean/tosource/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
booleanObj.toSource()
+
booleanObj.toSource()
 Boolean.toSource()

 
 
Return value

diff --git a/files/en-us/web/javascript/reference/global_objects/boolean/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/boolean/tostring/index.html
index a4e480381eada01..2c286d5cd67b3ed 100644
--- a/files/en-us/web/javascript/reference/global_objects/boolean/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/boolean/tostring/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
bool.toString()

+
bool.toString()

 
 
Return value

 
@@ -44,7 +44,7 @@ 
Using toString()

 
 
In the following code, flag.toString() returns "true":

 
-
var flag = new Boolean(true);
+
var flag = new Boolean(true);
 var myVar = flag.toString();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/boolean/valueof/index.html b/files/en-us/web/javascript/reference/global_objects/boolean/valueof/index.html
index bbec1f7e0254021..986231f36e7de91 100644
--- a/files/en-us/web/javascript/reference/global_objects/boolean/valueof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/boolean/valueof/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
bool.valueOf()

+
bool.valueOf()

 
 
Return value

 
@@ -35,7 +35,7 @@ 
Examples

 
 
Using valueOf()

 
-
x = new Boolean();
+
x = new Boolean();
 myVar = x.valueOf(); // assigns false to myVar
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/buffer/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/buffer/index.html
index 08556a965eaae0e..35c642abff60b76 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/buffer/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/buffer/index.html
@@ -24,7 +24,7 @@ 
Examples

 
 
Using the buffer property

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.buffer; // ArrayBuffer { byteLength: 8 }
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/bytelength/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/bytelength/index.html
index 5ce0b0a7bfd4b27..de043af384af8c7 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/bytelength/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/bytelength/index.html
@@ -24,7 +24,7 @@ 
Examples

 
 
Using the byteLength property

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.byteLength; // 8 (matches the byteLength of the buffer)
 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/byteoffset/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/byteoffset/index.html
index cd0b534bfb6bbe5..bfc29e409567ee9 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/byteoffset/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/byteoffset/index.html
@@ -24,7 +24,7 @@ 
Examples

 
 
Using the byteOffset property

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.byteOffset; // 0 (no offset specified)
 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/dataview/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/dataview/index.html
index ffaf21beca73bf6..bfb44415d46ef94 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/dataview/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/dataview/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
new DataView(buffer [, byteOffset [, byteLength]])

+  class="brush: js">new DataView(buffer [, byteOffset [, byteLength]])

 
 
Parameters

 
@@ -68,7 +68,7 @@ 
Examples

 
 
Using DataView

 
-
var buffer = new ArrayBuffer(16);
+
var buffer = new ArrayBuffer(16);
 var view = new DataView(buffer, 0);
 
 view.setInt16(1, 42);
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getbigint64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getbigint64/index.html
index f130d3659e3fd56..abb7774312550de 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getbigint64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getbigint64/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
dataview.getBigInt64(byteOffset [, littleEndian])

+  class="brush: js">dataview.getBigInt64(byteOffset [, littleEndian])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getbiguint64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getbiguint64/index.html
index 16a950098081505..c153a3c839818b1 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getbiguint64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getbiguint64/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
dataview.getBigUint64(byteOffset [, littleEndian])

+  class="brush: js">dataview.getBigUint64(byteOffset [, littleEndian])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getfloat32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getfloat32/index.html
index 3b6f8b227813c59..0a3b123ce67035b 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getfloat32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getfloat32/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.getFloat32(byteOffset [, littleEndian])

+  class="brush: js">dataview.getFloat32(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Examples

 
 
Using the getFloat32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getFloat32(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getfloat64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getfloat64/index.html
index 22d29c4b1dbc0dd..79bf6fe716eb958 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getfloat64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getfloat64/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.getFloat64(byteOffset [, littleEndian])

+  class="brush: js">dataview.getFloat64(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Examples

 
 
Using the getFloat64 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getFloat64(0); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getint16/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getint16/index.html
index d348f7a5e9fd713..3368dcc4d3cec3f 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getint16/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getint16/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.getInt16(byteOffset [, littleEndian])

+  class="brush: js">dataview.getInt16(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Examples

 
 
Using the getInt16 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getInt16(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getint32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getint32/index.html
index 75ae86761e149d1..274a30287513cb2 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getint32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getint32/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.getInt32(byteOffset [, littleEndian])

+  class="brush: js">dataview.getInt32(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Examples

 
 
Using the getInt32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getInt32(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getint8/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getint8/index.html
index d927b58808cf8fe..d094993cfda5861 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getint8/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getint8/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.getInt8(byteOffset)

+  class="brush: js">dataview.getInt8(byteOffset)

 
 
Parameters

 
@@ -53,7 +53,7 @@ 
Examples

 
 
Using the getInt8 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getInt8(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getuint16/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getuint16/index.html
index 5ebe58bb5ccf339..88e614fa56756b7 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getuint16/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getuint16/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.getUint16(byteOffset [, littleEndian])

+  class="brush: js">dataview.getUint16(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -58,7 +58,7 @@ 
Examples

 
 
Using the getUint16 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getUint16(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getuint32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getuint32/index.html
index aba00e0f998a63d..4a340695f618bb5 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getuint32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getuint32/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.getUint32(byteOffset [, littleEndian])

+  class="brush: js">dataview.getUint32(byteOffset [, littleEndian])

 
 
Parameters

 
@@ -58,7 +58,7 @@ 
Examples

 
 
Using the getUint32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getUint32(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/getuint8/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/getuint8/index.html
index dbf28e654c9fdb4..c7ede6266ec2064 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/getuint8/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/getuint8/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.getUint8(byteOffset)

+  class="brush: js">dataview.getUint8(byteOffset)

 
 
Parameters

 
@@ -54,7 +54,7 @@ 
Examples

 
 
Using the getUint8 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.getUint8(1); // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setbigint64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setbigint64/index.html
index e57c566fb86cddc..2619bcf22a5bf55 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setbigint64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setbigint64/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
dataview.setBigInt64(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setBigInt64(byteOffset, value [, littleEndian])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setbiguint64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setbiguint64/index.html
index c5063f869ba635e..3bb2e77959b8a12 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setbiguint64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setbiguint64/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
dataview.setBigUint64(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setBigUint64(byteOffset, value [, littleEndian])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setfloat32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setfloat32/index.html
index e2c0cc8ff1c1d5b..f6be3269007db83 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setfloat32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setfloat32/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setFloat32(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setFloat32(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setFloat32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setFloat32(1, 3);
 dataview.getFloat32(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setfloat64/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setfloat64/index.html
index 9dde62b99425f10..6da4ce37d7faf80 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setfloat64/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setfloat64/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setFloat64(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setFloat64(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setFloat64 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setFloat64(0, 3);
 dataview.getFloat64(0); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setint16/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setint16/index.html
index 27e278602ca6c6a..929937a2b2808ee 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setint16/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setint16/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setInt16(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setInt16(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setInt16 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setInt16(1, 3);
 dataview.getInt16(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setint32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setint32/index.html
index 2b73808a4634a13..cff858165db0793 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setint32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setint32/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setInt32(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setInt32(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setInt32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setInt32(1, 3);
 dataview.getInt32(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setint8/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setint8/index.html
index c8e5e1190db66de..48e36284da5e2fe 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setint8/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setint8/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dataview.setInt8(byteOffset, value)

+  class="brush: js">dataview.setInt8(byteOffset, value)

 
 
Parameters

 
@@ -51,7 +51,7 @@ 
Examples

 
 
Using the setInt8 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setInt8(1, 3);
 dataview.getInt8(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setuint16/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setuint16/index.html
index 8f73633ae4dde17..947522ef9ae8537 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setuint16/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setuint16/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setUint16(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setUint16(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setUint16 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setUint16(1, 3);
 dataview.getUint16(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setuint32/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setuint32/index.html
index 9cab544f1483803..6d10cc223c245a6 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setuint32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setuint32/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
dataview.setUint32(byteOffset, value [, littleEndian])

+  class="brush: js">dataview.setUint32(byteOffset, value [, littleEndian])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using the setUint32 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setUint32(1, 3);
 dataview.getUint32(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/dataview/setuint8/index.html b/files/en-us/web/javascript/reference/global_objects/dataview/setuint8/index.html
index 0f742a227226f0f..975d9d9ebed69fc 100644
--- a/files/en-us/web/javascript/reference/global_objects/dataview/setuint8/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/dataview/setuint8/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
dataview.setUint8(byteOffset, value)

+  class="brush: js">dataview.setUint8(byteOffset, value)

 
 
Parameters

 
@@ -46,7 +46,7 @@ 
Examples

 
 
Using the setUint8 method

 
-
var buffer = new ArrayBuffer(8);
+
var buffer = new ArrayBuffer(8);
 var dataview = new DataView(buffer);
 dataview.setUint8(1, 3);
 dataview.getUint8(1); // 3
diff --git a/files/en-us/web/javascript/reference/global_objects/date/@@toprimitive/index.html b/files/en-us/web/javascript/reference/global_objects/date/@@toprimitive/index.html
index 0dd50703b133146..4dbf85a364f385c 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/@@toprimitive/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/@@toprimitive/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
Date()[Symbol.toPrimitive](hint);

+
Date()[Symbol.toPrimitive](hint);

 
 
Return value

 
@@ -46,7 +46,7 @@ 
Examples

 
 
Returning date primitives

 
-
const testDate = new Date(1590757517834);
+
const testDate = new Date(1590757517834);
 // "Date Fri May 29 2020 14:05:17 GMT+0100 (British Summer Time)"
 
 testDate[Symbol.toPrimitive]('string');
diff --git a/files/en-us/web/javascript/reference/global_objects/date/date/index.html b/files/en-us/web/javascript/reference/global_objects/date/date/index.html
index 7278d7cd4bf4f71..265e72e421f7289 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/date/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/date/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
new Date()
+
new Date()
 new Date(value)
 new Date(dateString)
 new Date(year, monthIndex [, day [, hours [, minutes [, seconds [, milliseconds]]]]])
@@ -143,7 +143,7 @@ 
Several ways to create a Date obje
     browser differences and inconsistencies.

 
 
-
let today = new Date()
+
let today = new Date()
 let birthday = new Date('December 17, 1995 03:24:00')
 let birthday = new Date('1995-12-17T03:24:00')
 let birthday = new Date(1995, 11, 17)            // the month is 0-indexed
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getdate/index.html b/files/en-us/web/javascript/reference/global_objects/date/getdate/index.html
index b7ab4fba5727863..caf02c0f6e12910 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getdate/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getdate/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getDate()

+
dateObj.getDate()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getDate()

 
The second statement below assigns the value 25 to the variable day, based
   on the value of the {{jsxref("Date")}} object Xmas95.

 
-
var Xmas95 = new Date('December 25, 1995 23:15:30');
+
var Xmas95 = new Date('December 25, 1995 23:15:30');
 var day = Xmas95.getDate();
 
 console.log(day); // 25
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getday/index.html b/files/en-us/web/javascript/reference/global_objects/date/getday/index.html
index d9f323ab9f58656..1aee11c5e064940 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getday/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getday/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
dateObj.getDay()

+
dateObj.getDay()

 
 
Return value

 
@@ -40,7 +40,7 @@ 
Using getDay()

   value of the {{jsxref("Date")}} object Xmas95. December 25, 1995, is a
   Monday.

 
-
var Xmas95 = new Date('December 25, 1995 23:15:30');
+
var Xmas95 = new Date('December 25, 1995 23:15:30');
 var weekday = Xmas95.getDay();
 
 console.log(weekday); // 1
@@ -52,7 +52,7 @@ 
Using getDay()

     with an options parameter. Using this method, the internationalization is
     made easier:

 
-  
var options = { weekday: 'long'};
+  
var options = { weekday: 'long'};
 console.log(new Intl.DateTimeFormat('en-US', options).format(Xmas95));
 // Monday
 console.log(new Intl.DateTimeFormat('de-DE', options).format(Xmas95));
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getfullyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/getfullyear/index.html
index 3657541b6bfd4b8..2c6cc5b55e32311 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getfullyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getfullyear/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
dateObj.getFullYear()

+
dateObj.getFullYear()

 
 
Return value

 
@@ -46,7 +46,7 @@ 
Using getFullYear()

 
The following example assigns the four-digit value of the current year to the variable
   year.

 
-
var today = new Date();
+
var today = new Date();
 var year = today.getFullYear();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/gethours/index.html b/files/en-us/web/javascript/reference/global_objects/date/gethours/index.html
index 8e601c090e928d3..f05eec852079c38 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/gethours/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/gethours/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
dateObj.getHours()

+
dateObj.getHours()

 
 
Return value

 
@@ -32,7 +32,7 @@ 
Using getHours()

   based on the value of the {{jsxref("Global_Objects/Date", "Date")}} object
   Xmas95.

 
-
let Xmas95 = new Date('December 25, 1995 23:15:30');
+
let Xmas95 = new Date('December 25, 1995 23:15:30');
 let hours = Xmas95.getHours();
 
 console.log(hours); // 23
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getmilliseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/getmilliseconds/index.html
index 38f63400da22dc6..501831187f278ef 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getmilliseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getmilliseconds/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getMilliseconds()

+
dateObj.getMilliseconds()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getMilliseconds()

 
The following example assigns the milliseconds portion of the current time to the
   variable milliseconds:

 
-
var today = new Date();
+
var today = new Date();
 var milliseconds = today.getMilliseconds();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getminutes/index.html b/files/en-us/web/javascript/reference/global_objects/date/getminutes/index.html
index f93a5c26d590cc3..9756b92919ae7ef 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getminutes/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getminutes/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getMinutes()

+
dateObj.getMinutes()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Using getMinutes()

   based on the value of the {{jsxref("Global_Objects/Date", "Date")}} object
   Xmas95.

 
-
var Xmas95 = new Date('December 25, 1995 23:15:30');
+
var Xmas95 = new Date('December 25, 1995 23:15:30');
 var minutes = Xmas95.getMinutes();
 
 console.log(minutes); // 15
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getmonth/index.html b/files/en-us/web/javascript/reference/global_objects/date/getmonth/index.html
index 3e1ce012f5439fd..b4a549b97512eee 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getmonth/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getmonth/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
dateObj.getMonth()

+
dateObj.getMonth()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Using getMonth()

 
The second statement below assigns the value 11 to the variable month,
   based on the value of the {{jsxref("Date")}} object Xmas95.

 
-
var Xmas95 = new Date('December 25, 1995 23:15:30');
+
var Xmas95 = new Date('December 25, 1995 23:15:30');
 var month = Xmas95.getMonth();
 
 console.log(month); // 11
@@ -51,7 +51,7 @@ 
Using getMonth()

     with an options parameter. Using this method, internationalization is
     made easier:

 
-  
var options = { month: 'long'};
+  
var options = { month: 'long'};
 console.log(new Intl.DateTimeFormat('en-US', options).format(Xmas95));
 // December
 console.log(new Intl.DateTimeFormat('de-DE', options).format(Xmas95));
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/getseconds/index.html
index 6ecdf2a6f9ad790..ad82e0bf188a19e 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getseconds/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getSeconds()

+
dateObj.getSeconds()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Using getSeconds()

   based on the value of the {{jsxref("Global_Objects/Date", "Date")}} object
   Xmas95.

 
-
var Xmas95 = new Date('December 25, 1995 23:15:30');
+
var Xmas95 = new Date('December 25, 1995 23:15:30');
 var seconds = Xmas95.getSeconds();
 
 console.log(seconds); // 30
diff --git a/files/en-us/web/javascript/reference/global_objects/date/gettime/index.html b/files/en-us/web/javascript/reference/global_objects/date/gettime/index.html
index c9ecb1d5605534d..db28279ca5715a7 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/gettime/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/gettime/index.html
@@ -28,7 +28,7 @@
 
 
Syntax

 
-
dateObj.getTime()

+
dateObj.getTime()

 
 
Return value

 
@@ -42,7 +42,7 @@ 
Reduced time precision

   Firefox, the privacy.reduceTimerPrecision preference is enabled by default
   and defaults to 20µs in Firefox 59; in 60 it will be 2ms.

 
-
// reduced time precision (2ms) in Firefox 60
+
// reduced time precision (2ms) in Firefox 60
 new Date().getTime();
 // 1519211809934
 // 1519211810362
@@ -69,7 +69,7 @@ 
Using getTime() for copyin
 
 
Constructing a date object with the identical time value.

 
-
// Since month is zero based, birthday will be January 10, 1995
+
// Since month is zero based, birthday will be January 10, 1995
 var birthday = new Date(1994, 12, 10);
 var copy = new Date();
 copy.setTime(birthday.getTime());
@@ -82,7 +82,7 @@ 
Measuring execution time

   to calculate the executing time of some operations. See also {{jsxref("Date.now()")}} to
   prevent instantiating unnecessary {{jsxref("Date")}} objects.

 
-
var end, start;
+
var end, start;
 
 start = new Date();
 for (var i = 0; i < 1000; i++) {
diff --git a/files/en-us/web/javascript/reference/global_objects/date/gettimezoneoffset/index.html b/files/en-us/web/javascript/reference/global_objects/date/gettimezoneoffset/index.html
index 5b20fab56fbc584..d4cd8c5700906c7 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/gettimezoneoffset/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/gettimezoneoffset/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
dateObj.getTimezoneOffset()

+
dateObj.getTimezoneOffset()

 
 
Return value

 
@@ -62,7 +62,7 @@ 
Examples

 
 
Using getTimezoneOffset()

 
-
// Get current timezone offset for host device
+
// Get current timezone offset for host device
 let x = new Date();
 let currentTimeZoneOffsetInHours = x.getTimezoneOffset() / 60;
 // 1
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcdate/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcdate/index.html
index 16637e283b77ad0..b0af50988cb8d5b 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcdate/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcdate/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCDate()

+
dateObj.getUTCDate()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getUTCDate()

 
The following example assigns the day of month of the current date to the variable
   dayOfMonth.

 
-
var today = new Date();
+
var today = new Date();
 var dayOfMonth = today.getUTCDate();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcday/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcday/index.html
index ad2ab5a5b7e7a9e..9706e606d0dea0d 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcday/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcday/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCDay()

+
dateObj.getUTCDay()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getUTCDay()

 
The following example assigns the weekday portion of the current date to the variable
   weekday.

 
-
var today = new Date();
+
var today = new Date();
 var weekday = today.getUTCDay();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcfullyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcfullyear/index.html
index 81a9d2b15f8b9e6..96566e47e9ec694 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcfullyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcfullyear/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCFullYear()

+
dateObj.getUTCFullYear()

 
 
Return value

 
@@ -41,7 +41,7 @@ 
Using getUTCFullYear()

 
The following example assigns the four-digit value of the current year to the variable
   year.

 
-
var today = new Date();
+
var today = new Date();
 var year = today.getUTCFullYear();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutchours/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutchours/index.html
index 473ba8d64b4393d..0d4603785a09827 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutchours/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutchours/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCHours()

+
dateObj.getUTCHours()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getUTCHours()

 
The following example assigns the hours portion of the current time to the variable
   hours.

 
-
var today = new Date();
+
var today = new Date();
 var hours = today.getUTCHours();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcmilliseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcmilliseconds/index.html
index d62dbf62ec0fc6d..97d95ee8d7e3c55 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcmilliseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcmilliseconds/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCMilliseconds()

+
dateObj.getUTCMilliseconds()

 
 
Return value

 
@@ -41,7 +41,7 @@ 
Using getUTCMilliseconds()

 
The following example assigns the milliseconds portion of the current time to the
   variable milliseconds.

 
-
var today = new Date();
+
var today = new Date();
 var milliseconds = today.getUTCMilliseconds();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcminutes/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcminutes/index.html
index fd96d451407fb80..5036865c28fed1f 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcminutes/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcminutes/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCMinutes()

+
dateObj.getUTCMinutes()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getUTCMinutes()

 
The following example assigns the minutes portion of the current time to the variable
   minutes.

 
-
var today = new Date();
+
var today = new Date();
 var minutes = today.getUTCMinutes();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcmonth/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcmonth/index.html
index b5bcae30228079d..02d082fdb6026c5 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcmonth/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcmonth/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
dateObj.getUTCMonth()

+
dateObj.getUTCMonth()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Using getUTCMonth()

 
The following example assigns the month portion of the current date to the variable
   month.

 
-
var today = new Date();
+
var today = new Date();
 var month = today.getUTCMonth();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getutcseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/getutcseconds/index.html
index 49e8a3d9225fa94..813efa31eb421ba 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getutcseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getutcseconds/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.getUTCSeconds()

+
dateObj.getUTCSeconds()

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Using getUTCSeconds()

 
The following example assigns the seconds portion of the current time to the variable
   seconds.

 
-
var today = new Date();
+
var today = new Date();
 var seconds = today.getUTCSeconds();
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/getyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/getyear/index.html
index 9214f22020b14f0..782c066f72e38d5 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/getyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/getyear/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
dateObj.getYear()

+
dateObj.getYear()

 
 
Return value

 
@@ -64,7 +64,7 @@ 
Years between 1900 and 1999

 
 
The second statement assigns the value 95 to the variable year.

 
-
var Xmas = new Date('December 25, 1995 23:15:00');
+
var Xmas = new Date('December 25, 1995 23:15:00');
 var year = Xmas.getYear(); // returns 95
 

 
@@ -72,7 +72,7 @@ 
Years above 1999

 
 
The second statement assigns the value 100 to the variable year.

 
-
var Xmas = new Date('December 25, 2000 23:15:00');
+
var Xmas = new Date('December 25, 2000 23:15:00');
 var year = Xmas.getYear(); // returns 100
 

 
@@ -80,7 +80,7 @@ 
Years below 1900

 
 
The second statement assigns the value -100 to the variable year.

 
-
var Xmas = new Date('December 25, 1800 23:15:00');
+
var Xmas = new Date('December 25, 1800 23:15:00');
 var year = Xmas.getYear(); // returns -100
 

 
@@ -90,7 +90,7 @@ 
Setting and getting a
 
The third statement assigns the value 95 to the variable year,
   representing the year 1995.

 
-
var Xmas = new Date('December 25, 2015 23:15:00');
+
var Xmas = new Date('December 25, 2015 23:15:00');
 Xmas.setYear(95);
 var year = Xmas.getYear(); // returns 95
 

diff --git a/files/en-us/web/javascript/reference/global_objects/date/index.html b/files/en-us/web/javascript/reference/global_objects/date/index.html
index db0f86db20f4f0e..164ae81664be5f1 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/index.html
@@ -166,7 +166,7 @@ 
Several ways to create a Date obje
 
Note: Parsing of date strings with the Date constructor (and Date.parse, they are equivalent) is strongly discouraged due to browser differences and inconsistencies.

 
 
-
let today = new Date()
+
let today = new Date()
 let birthday = new Date('December 17, 1995 03:24:00')
 let birthday = new Date('1995-12-17T03:24:00')
 let birthday = new Date(1995, 11, 17)            // the month is 0-indexed
@@ -176,7 +176,7 @@ 
Several ways to create a Date obje
 
 
 To get Date, Month and Year or Time

 
-
let [month, date, year]    = new Date().toLocaleDateString("en-US").split("/")
+
let [month, date, year]    = new Date().toLocaleDateString("en-US").split("/")
 let [hour, minute, second] = new Date().toLocaleTimeString("en-US").split(/:| /)

 
 
Two digit years map to 1900 – 1999

@@ -185,7 +185,7 @@ 
Two digit years map to 1900 – 19
 
 
In order to create and get dates between the years 0 and 99 the {{jsxref("Date.prototype.setFullYear()")}} and {{jsxref("Date.prototype.getFullYear()")}} methods should be used.

 
-
let date = new Date(98, 1)  // Sun Feb 01 1998 00:00:00 GMT+0000 (GMT)
+
let date = new Date(98, 1)  // Sun Feb 01 1998 00:00:00 GMT+0000 (GMT)
 
 // Deprecated method; 98 maps to 1998 here as well
 date.setYear(98)            // Sun Feb 01 1998 00:00:00 GMT+0000 (GMT)
@@ -199,7 +199,7 @@ 
Calculating elapsed time

 
 
Due to the differing lengths of days (due to daylight saving changeover), months, and years, expressing elapsed time in units greater than hours, minutes, and seconds requires addressing a number of issues, and should be thoroughly researched before being attempted.

 
-
// Using Date objects
+
// Using Date objects
 let start = Date.now()
 
 // The event to time goes here:
@@ -208,7 +208,7 @@ 
Calculating elapsed time

 let elapsed = end - start // elapsed time in milliseconds
 

 
-
// Using built-in methods
+
// Using built-in methods
 let start = new Date()
 
 // The event to time goes here:
@@ -217,7 +217,7 @@ 
Calculating elapsed time

 let elapsed = end.getTime() - start.getTime() // elapsed time in milliseconds
 

 
-
// To test a function and get back its return
+
// To test a function and get back its return
 function printElapsedTime(fTest) {
   let nStartTime = Date.now(),
       vReturn = fTest(),
@@ -236,7 +236,7 @@ 
Calculating elapsed time

 
 
Get the number of seconds since the ECMAScript Epoch

 
-
let seconds = Math.floor(Date.now() / 1000)
+
let seconds = Math.floor(Date.now() / 1000)
 

 
 
In this case, it's important to return only an integer—so a simple division won't do. It's also important to only return actually elapsed seconds. (That's why this code uses {{jsxref("Math.floor()")}}, and not {{jsxref("Math.round()")}}.)

diff --git a/files/en-us/web/javascript/reference/global_objects/date/now/index.html b/files/en-us/web/javascript/reference/global_objects/date/now/index.html
index 247817f2a881056..7692afe5d4409bc 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/now/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/now/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
var timeInMs = Date.now();

+
var timeInMs = Date.now();

 
 
Return value

 
@@ -30,7 +30,7 @@ 
Polyfill

   been updated to support this method can work around the absence of this method using the
   following shim:

 
-
if (!Date.now) {
+
if (!Date.now) {
   Date.now = function now() {
     return new Date().getTime();
   };
@@ -46,7 +46,7 @@ 
Reduced time precision

   In Firefox, the privacy.reduceTimerPrecision  preference is enabled by
   default and defaults to 20µs in Firefox 59; in 60 it will be 2ms.

 
-
// reduced time precision (2ms) in Firefox 60
+
// reduced time precision (2ms) in Firefox 60
 Date.now()
 // 1519211809934
 // 1519211810362
diff --git a/files/en-us/web/javascript/reference/global_objects/date/parse/index.html b/files/en-us/web/javascript/reference/global_objects/date/parse/index.html
index 7ec9ecc697a7702..7e052c285ba8472 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/parse/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/parse/index.html
@@ -31,12 +31,12 @@ 
Syntax

 
 
Direct call:

 
-
Date.parse(dateString)
+
Date.parse(dateString)
 

 
 
Implicit call:

 
-
new Date(dateString)
+
new Date(dateString)
 

 
 
Parameters

diff --git a/files/en-us/web/javascript/reference/global_objects/date/setdate/index.html b/files/en-us/web/javascript/reference/global_objects/date/setdate/index.html
index 23629b180b56c73..a5e89a729a43365 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setdate/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setdate/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.setDate(dayValue)

+
dateObj.setDate(dayValue)

 
 
Parameters

 
@@ -53,7 +53,7 @@ 
Examples

 
 
Using setDate()

 
-
var theBigDay = new Date(1962, 6, 7); // 1962-07-07 (7th of July 1962)
+
var theBigDay = new Date(1962, 6, 7); // 1962-07-07 (7th of July 1962)
 theBigDay.setDate(24);  // 1962-07-24 (24th of July 1962)
 theBigDay.setDate(32);  // 1962-08-01 (1st of August 1962)
 theBigDay.setDate(22);  // 1962-08-22 (22th of August 1962)
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setfullyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/setfullyear/index.html
index 25605ce43fab479..6e2f8aefea0e74b 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setfullyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setfullyear/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setFullYear(yearValue[, monthValue[, dateValue]])

+  class="brush: js">dateObj.setFullYear(yearValue[, monthValue[, dateValue]])

 
 
Parameters

 
@@ -62,7 +62,7 @@ 
Examples

 
 
Using setFullYear()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setFullYear(1997);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/sethours/index.html b/files/en-us/web/javascript/reference/global_objects/date/sethours/index.html
index 07a2a60b605f1a1..783b33504f79c53 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/sethours/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/sethours/index.html
@@ -25,12 +25,12 @@
 
Syntax

 
 
dateObj.setHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])

+  class="brush: js">dateObj.setHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])

 
 
Versions prior to JavaScript 1.3

 
 
dateObj.setHours(hoursValue)

+  class="brush: js">dateObj.setHours(hoursValue)

 
 
Parameters

 
@@ -79,7 +79,7 @@ 
Examples

 
 
Using setHours()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setHours(7);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setmilliseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/setmilliseconds/index.html
index 9b8619d1a88043b..085b0913010b275 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setmilliseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setmilliseconds/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setMilliseconds(millisecondsValue)

+  class="brush: js">dateObj.setMilliseconds(millisecondsValue)

 
 
Parameters

 
@@ -48,7 +48,7 @@ 
Examples

 
 
Using setMilliseconds()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setMilliseconds(100);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setminutes/index.html b/files/en-us/web/javascript/reference/global_objects/date/setminutes/index.html
index ee16b38e43a1ff7..ad08738776fc904 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setminutes/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setminutes/index.html
@@ -24,12 +24,12 @@
 
Syntax

 
 
dateObj.setMinutes(minutesValue[, secondsValue[, msValue]])

+  class="brush: js">dateObj.setMinutes(minutesValue[, secondsValue[, msValue]])

 
 
Versions prior to JavaScript 1.3

 
 
dateObj.setMinutes(minutesValue)

+  class="brush: js">dateObj.setMinutes(minutesValue)

 
 
Parameters

 
@@ -69,7 +69,7 @@ 
Examples

 
 
Using setMinutes()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setMinutes(45);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setmonth/index.html b/files/en-us/web/javascript/reference/global_objects/date/setmonth/index.html
index 6286a7c50d02922..5286ea23aefe5a6 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setmonth/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setmonth/index.html
@@ -18,12 +18,12 @@
 
Syntax

 
 
dateObj.setMonth(monthValue[, dayValue])

+  class="brush: js">dateObj.setMonth(monthValue[, dayValue])

 
 
Versions prior to JavaScript 1.3

 
 
dateObj.setMonth(monthValue)

+  class="brush: js">dateObj.setMonth(monthValue)

 
 
Parameters

 
@@ -62,7 +62,7 @@ 
Examples

 
 
Using setMonth()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setMonth(6);
 
 //Watch out for end of month transitions
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/setseconds/index.html
index c4c0a8b46fea0fa..dd6de1109f3e4b7 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setseconds/index.html
@@ -24,12 +24,12 @@
 
Syntax

 
 
dateObj.setSeconds(secondsValue[, msValue])

+  class="brush: js">dateObj.setSeconds(secondsValue[, msValue])

 
 
Versions prior to JavaScript 1.3

 
 
dateObj.setSeconds(secondsValue)

+  class="brush: js">dateObj.setSeconds(secondsValue)

 
 
Parameters

 
@@ -61,7 +61,7 @@ 
Examples

 
 
Using setSeconds()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setSeconds(30);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/settime/index.html b/files/en-us/web/javascript/reference/global_objects/date/settime/index.html
index e83fb0f3ae427b9..865c77391507422 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/settime/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/settime/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
dateObj.setTime(timeValue)

+
dateObj.setTime(timeValue)

 
 
Parameters

 
@@ -48,7 +48,7 @@ 
Examples

 
 
Using setTime()

 
-
var theBigDay = new Date('July 1, 1999');
+
var theBigDay = new Date('July 1, 1999');
 var sameAsBigDay = new Date();
 sameAsBigDay.setTime(theBigDay.getTime());
 

diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcdate/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcdate/index.html
index ee8228d67eade12..4ef70b348c3008f 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcdate/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcdate/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCDate(dayValue)

+  class="brush: js">dateObj.setUTCDate(dayValue)

 
 
Parameters

 
@@ -50,7 +50,7 @@ 
Examples

 
 
Using setUTCDate()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCDate(20);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcfullyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcfullyear/index.html
index 6113029cd9c0597..f84d5bab3ed9f10 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcfullyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcfullyear/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCFullYear(yearValue[, monthValue[, dayValue]])

+  class="brush: js">dateObj.setUTCFullYear(yearValue[, monthValue[, dayValue]])

 
 
Parameters

 
@@ -62,7 +62,7 @@ 
Examples

 
 
Using setUTCFullYear()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCFullYear(1997);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutchours/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutchours/index.html
index fcb3eeef8ec5ff4..ce235fab63c8401 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutchours/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutchours/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
dateObj.setUTCHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])

+  class="brush: js">dateObj.setUTCHours(hoursValue[, minutesValue[, secondsValue[, msValue]]])

 
 
Parameters

 
@@ -69,7 +69,7 @@ 
Examples

 
 
Using setUTCHours()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCHours(8);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcmilliseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcmilliseconds/index.html
index f91f97546d8d9c4..0b08a90c812265d 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcmilliseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcmilliseconds/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCMilliseconds(millisecondsValue)

+  class="brush: js">dateObj.setUTCMilliseconds(millisecondsValue)

 
 
Parameters

 
@@ -50,7 +50,7 @@ 
Examples

 
 
Using setUTCMilliseconds()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCMilliseconds(500);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcminutes/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcminutes/index.html
index d6210f6d20cf6bc..27edb8860ad2faf 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcminutes/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcminutes/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCMinutes(minutesValue[, secondsValue[, msValue]])

+  class="brush: js">dateObj.setUTCMinutes(minutesValue[, secondsValue[, msValue]])

 
 
Parameters

 
@@ -64,7 +64,7 @@ 
Examples

 
 
Using setUTCMinutes()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCMinutes(43);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcmonth/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcmonth/index.html
index 6cd34e0fa18ec75..0ac8a7c0b5377b9 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcmonth/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcmonth/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCMonth(monthValue[, dayValue])

+  class="brush: js">dateObj.setUTCMonth(monthValue[, dayValue])

 
 
Parameters

 
@@ -54,7 +54,7 @@ 
Examples

 
 
Using setUTCMonth()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCMonth(11);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setutcseconds/index.html b/files/en-us/web/javascript/reference/global_objects/date/setutcseconds/index.html
index a89a6e6ba7f2895..c8a454ffca204fd 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setutcseconds/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setutcseconds/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
dateObj.setUTCSeconds(secondsValue[, msValue])

+  class="brush: js">dateObj.setUTCSeconds(secondsValue[, msValue])

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using setUTCSeconds()

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 theBigDay.setUTCSeconds(20);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/setyear/index.html b/files/en-us/web/javascript/reference/global_objects/date/setyear/index.html
index 853ecd22b04ad99..f2b5c4e366c55f5 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/setyear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/setyear/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
dateObj.setYear(yearValue)

+
dateObj.setYear(yearValue)

 
 
Parameters

 
@@ -44,7 +44,7 @@ 
Using setYear()

 
 
The first two lines set the year to 1996. The third sets the year to 2000.

 
-
var theBigDay = new Date();
+
var theBigDay = new Date();
 
 theBigDay.setYear(96);
 theBigDay.setYear(1996);
diff --git a/files/en-us/web/javascript/reference/global_objects/date/todatestring/index.html b/files/en-us/web/javascript/reference/global_objects/date/todatestring/index.html
index a6bc56162b6de51..581c06efde50f44 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/todatestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/todatestring/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
dateObj.toDateString()

+
dateObj.toDateString()

 
 
Return value

 
@@ -55,7 +55,7 @@ 
Examples

 
 
A basic usage of toDateString()

 
-
var d = new Date(1993, 5, 28, 14, 39, 7);
+
var d = new Date(1993, 5, 28, 14, 39, 7);
 
 console.log(d.toString());     // logs Mon Jun 28 1993 14:39:07 GMT-0600 (PDT)
 console.log(d.toDateString()); // logs Mon Jun 28 1993
diff --git a/files/en-us/web/javascript/reference/global_objects/date/togmtstring/index.html b/files/en-us/web/javascript/reference/global_objects/date/togmtstring/index.html
index e69a62e2b65733d..b3e4ca8adf78a6d 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/togmtstring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/togmtstring/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
dateObj.toGMTString()

+
dateObj.toGMTString()

 
 
Return value

 
@@ -39,7 +39,7 @@ 
Simple example

   using the operating system's time-zone offset and returns a string value that is similar
   to the following form. The exact format depends on the platform.

 
-
var today = new Date();
+
var today = new Date();
 var str = today.toGMTString();  // deprecated! use toUTCString()
 
 console.log(str);               // Mon, 18 Dec 1995 17:28:35 GMT
diff --git a/files/en-us/web/javascript/reference/global_objects/date/toisostring/index.html b/files/en-us/web/javascript/reference/global_objects/date/toisostring/index.html
index 270468764534984..ae2648353df0f8d 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/toisostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/toisostring/index.html
@@ -31,7 +31,7 @@
 
 
Syntax

 
-
dateObj.toISOString()

+
dateObj.toISOString()

 
 
Return value

 
@@ -45,7 +45,7 @@ 
Polyfill

   updated to support this method can work around the absence of this method using the
   following shim:

 
-
if (!Date.prototype.toISOString) {
+
if (!Date.prototype.toISOString) {
   (function() {
 
     function pad(number) {
@@ -74,7 +74,7 @@ 
Examples

 
 
Using toISOString()

 
-
let today = new Date('05 October 2011 14:48 UTC')
+
let today = new Date('05 October 2011 14:48 UTC')
 
 console.log(today.toISOString())  // Returns 2011-10-05T14:48:00.000Z
 

diff --git a/files/en-us/web/javascript/reference/global_objects/date/tojson/index.html b/files/en-us/web/javascript/reference/global_objects/date/tojson/index.html
index d0b3c343ca5c47d..3cf725c37301b89 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tojson/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tojson/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.toJSON()

+
dateObj.toJSON()

 
 
Return value

 
@@ -41,7 +41,7 @@ 
Examples

 
 
Using toJSON()

 
-
var jsonDate = (new Date()).toJSON();
+
var jsonDate = (new Date()).toJSON();
 var backToDate = new Date(jsonDate);
 
 console.log(jsonDate); //2015-10-26T07:46:36.611Z
diff --git a/files/en-us/web/javascript/reference/global_objects/date/tolocaledatestring/index.html b/files/en-us/web/javascript/reference/global_objects/date/tolocaledatestring/index.html
index 3d174ee50526599..5e4da173b96c1de 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tolocaledatestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tolocaledatestring/index.html
@@ -31,7 +31,7 @@
 
Syntax

 
 
dateObj.toLocaleDateString([locales[, options]])

+  class="brush: js">dateObj.toLocaleDateString([locales[, options]])

 
 
Parameters

 
@@ -68,7 +68,7 @@ 
Using toLocaleDateString()

 
In basic use without specifying a locale, a formatted string in the default locale and
   with default options is returned.

 
-
var date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
 
 // toLocaleDateString() without arguments depends on the implementation,
 // the default locale, and the default time zone
@@ -84,7 +84,7 @@ 
Checking for sup
   requirement that illegal language tags are rejected with a {{jsxref("RangeError")}}
   exception:

 
-
function toLocaleDateStringSupportsLocales() {
+
function toLocaleDateStringSupportsLocales() {
   try {
     new Date().toLocaleDateString('i');
   } catch (e) {
@@ -101,7 +101,7 @@ 
Using locales

   specify that language (and possibly some fallback languages) using the
   locales argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // formats below assume the local time zone of the locale;
 // America/Los_Angeles for the US
@@ -142,7 +142,7 @@ 
Using options

 
The results provided by toLocaleDateString() can be customized using the
   options argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // request a weekday along with a long date
 var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
diff --git a/files/en-us/web/javascript/reference/global_objects/date/tolocalestring/index.html b/files/en-us/web/javascript/reference/global_objects/date/tolocalestring/index.html
index 170f214a3bee6c2..e600484c85ae917 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tolocalestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tolocalestring/index.html
@@ -27,7 +27,7 @@
 
Syntax

 
 
dateObj.toLocaleString([locales[, options]])

+  class="brush: js">dateObj.toLocaleString([locales[, options]])

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Using toLocaleString()

 
In basic use without specifying a locale, a formatted string in the default locale and
   with default options is returned.

 
-
let date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
+
let date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
 
 // toLocaleString() without arguments depends on the
 // implementation, the default locale, and the default time zone
@@ -73,7 +73,7 @@ 
Checking for sup
   already, you can use the requirement that illegal language tags are rejected with a
   {{jsxref("RangeError")}} exception:

 
-
function toLocaleStringSupportsLocales() {
+
function toLocaleStringSupportsLocales() {
   try {
     new Date().toLocaleString('i');
   } catch (e) {
@@ -90,7 +90,7 @@ 
Using locales

   sure to specify that language (and possibly some fallback languages) using the
   locales argument:

 
-
let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // formats below assume the local time zone of the locale;
 // America/Los_Angeles for the US
@@ -127,7 +127,7 @@ 
Using options

 
The results provided by toLocaleString() can be customized using the
   options argument:

 
-
let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
let date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // request a weekday along with a long date
 let options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
@@ -160,7 +160,7 @@ 
Avoid comparing
 
For this reason, you cannot expect to be able to compare the results of
   toLocaleString() to a static value:

 
-
"1/1/2019, 01:00:00" === new Date("2019-01-01T01:00:00Z").toLocaleString("en-US");
+
"1/1/2019, 01:00:00" === new Date("2019-01-01T01:00:00Z").toLocaleString("en-US");
 // true in Firefox and others
 // false in IE and Edge

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/tolocaletimestring/index.html b/files/en-us/web/javascript/reference/global_objects/date/tolocaletimestring/index.html
index 8f88ef870a2fc7b..6eb857d6e824a4c 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tolocaletimestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tolocaletimestring/index.html
@@ -30,7 +30,7 @@
 
Syntax

 
 
dateObj.toLocaleTimeString([locales[, options]])

+  class="brush: js">dateObj.toLocaleTimeString([locales[, options]])

 
 
Parameters

 
@@ -67,7 +67,7 @@ 
Using toLocaleTimeString()

 
In basic use without specifying a locale, a formatted string in the default locale and
   with default options is returned.

 
-
var date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 12, 3, 0, 0));
 
 // toLocaleTimeString() without arguments depends on the implementation,
 // the default locale, and the default time zone
@@ -83,7 +83,7 @@ 
Checking for sup
   requirement that illegal language tags are rejected with a {{jsxref("RangeError")}}
   exception:

 
-
function toLocaleTimeStringSupportsLocales() {
+
function toLocaleTimeStringSupportsLocales() {
   try {
     new Date().toLocaleTimeString('i');
   } catch (e) {
@@ -100,7 +100,7 @@ 
Using locales

   specify that language (and possibly some fallback languages) using the
   locales argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // formats below assume the local time zone of the locale;
 // America/Los_Angeles for the US
@@ -132,7 +132,7 @@ 
Using options

 
The results provided by toLocaleTimeString() can be customized using the
   options argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // an application may want to use UTC and make that visible
 var options = { timeZone: 'UTC', timeZoneName: 'short' };
diff --git a/files/en-us/web/javascript/reference/global_objects/date/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/date/tosource/index.html
index 520b28b7f753fcb..f254c2b25ab9848 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tosource/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
dateObj.toSource()
+
dateObj.toSource()
 Date.toSource()

 
 
Return value

diff --git a/files/en-us/web/javascript/reference/global_objects/date/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/date/tostring/index.html
index 5d068f0b8696f62..59fd5c0d64bb9e6 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/tostring/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
dateObj.toString()

+
dateObj.toString()

 
 
Return value

 
@@ -90,7 +90,7 @@ 
Using toString()

 
The following assigns the toString() value of a {{jsxref("Date")}} object
   to myVar:

 
-
var x = new Date();
+
var x = new Date();
 var myVar = x.toString(); // assigns a string value to myVar in the same format as:
                           // Mon Sep 08 1998 14:36:22 GMT-0700 (PDT)
 

diff --git a/files/en-us/web/javascript/reference/global_objects/date/totimestring/index.html b/files/en-us/web/javascript/reference/global_objects/date/totimestring/index.html
index 9d3d1d8b9df1fd9..efa873d9033c7bd 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/totimestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/totimestring/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateObj.toTimeString()

+
dateObj.toTimeString()

 
 
Return value

 
@@ -51,7 +51,7 @@ 
Examples

 
 
A basic usage of toTimeString()

 
-
var d = new Date(1993, 6, 28, 14, 39, 7);
+
var d = new Date(1993, 6, 28, 14, 39, 7);
 
 console.log(d.toString());     // Wed Jul 28 1993 14:39:07 GMT-0600 (PDT)
 console.log(d.toTimeString()); // 14:39:07 GMT-0600 (PDT)
diff --git a/files/en-us/web/javascript/reference/global_objects/date/toutcstring/index.html b/files/en-us/web/javascript/reference/global_objects/date/toutcstring/index.html
index 624c6385beef3b7..56f51d5c18bf479 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/toutcstring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/toutcstring/index.html
@@ -29,7 +29,7 @@
 
 
Syntax

 
-
dateObj.toUTCString()

+
dateObj.toUTCString()

 
 
Return value

 
@@ -88,7 +88,7 @@ 
Examples

 
 
Using toUTCString()

 
-
let today = new Date('Wed, 14 Jun 2017 00:00:00 PDT');
+
let today = new Date('Wed, 14 Jun 2017 00:00:00 PDT');
 let UTCstring = today.toUTCString(); // Wed, 14 Jun 2017 07:00:00 GMT
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/date/utc/index.html b/files/en-us/web/javascript/reference/global_objects/date/utc/index.html
index f94edce543ed466..e50a6a06fcba09c 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/utc/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/utc/index.html
@@ -26,13 +26,13 @@ 
Syntax

 
Since ECMAScript 2017:

 
 
Date.UTC(year[, month[, day[, hour[, minute[, second[, millisecond]]]]]])

+  class="brush: js">Date.UTC(year[, month[, day[, hour[, minute[, second[, millisecond]]]]]])

 
 
ECMAScript 2016 and earlier: (month used
     to be required)

 
 
Date.UTC(year, month[, day[, hour[, minute[, second[, millisecond]]]]])

+  class="brush: js">Date.UTC(year, month[, day[, hour[, minute[, second[, millisecond]]]]])

 
 
Parameters

 
@@ -100,7 +100,7 @@ 
Using Date.UTC()

 
The following statement creates a {{jsxref("Date")}} object with the arguments treated
   as UTC instead of local:

 
-
let utcDate = new Date(Date.UTC(2018, 11, 1, 0, 0, 0));
+
let utcDate = new Date(Date.UTC(2018, 11, 1, 0, 0, 0));
 

 
 
Specifications

@@ -133,7 +133,7 @@ 
Date.UTC() with fewer than two a
     href="https://bugzilla.mozilla.org/show_bug.cgi?id=1050755">bug 1050755, ecma-262 #642).

 
-
Date.UTC();
+
Date.UTC();
 Date.UTC(1);
 
 // Safari: NaN
diff --git a/files/en-us/web/javascript/reference/global_objects/date/valueof/index.html b/files/en-us/web/javascript/reference/global_objects/date/valueof/index.html
index 35abbb29d198fc0..ca9d45a10c82765 100644
--- a/files/en-us/web/javascript/reference/global_objects/date/valueof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/date/valueof/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
dateObj.valueOf()

+
dateObj.valueOf()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Examples

 
 
Using valueOf()

 
-
var x = new Date(56, 6, 17);
+
var x = new Date(56, 6, 17);
 var myVar = x.valueOf();      // assigns -424713600000 to myVar
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/decodeuri/index.html b/files/en-us/web/javascript/reference/global_objects/decodeuri/index.html
index a45cc78df9d2040..e72595ec812981b 100644
--- a/files/en-us/web/javascript/reference/global_objects/decodeuri/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/decodeuri/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
decodeURI(encodedURI)

+
decodeURI(encodedURI)

 
 
Parameters

 
@@ -52,13 +52,13 @@ 
Examples

 
 
Decoding a Cyrillic URL

 
-
decodeURI('https://developer.mozilla.org/ru/docs/JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B');
+
decodeURI('https://developer.mozilla.org/ru/docs/JavaScript_%D1%88%D0%B5%D0%BB%D0%BB%D1%8B');
 // "https://developer.mozilla.org/ru/docs/JavaScript_шеллы"
 

 
 
Catching errors

 
-
try {
+
try {
   var a = decodeURI('%E0%A4%A');
 } catch(e) {
   console.error(e);
diff --git a/files/en-us/web/javascript/reference/global_objects/decodeuricomponent/index.html b/files/en-us/web/javascript/reference/global_objects/decodeuricomponent/index.html
index 304ec7643f95408..61c1ef2a0815ff5 100644
--- a/files/en-us/web/javascript/reference/global_objects/decodeuricomponent/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/decodeuricomponent/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
decodeURIComponent(encodedURI)

+
decodeURIComponent(encodedURI)

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/encodeuri/index.html b/files/en-us/web/javascript/reference/global_objects/encodeuri/index.html
index 810af1bb634fad7..f00f8c2c1bf0d4c 100644
--- a/files/en-us/web/javascript/reference/global_objects/encodeuri/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/encodeuri/index.html
@@ -27,7 +27,7 @@
 
 
Syntax

 
-
encodeURI(URI)

+
encodeURI(URI)

 
 
Parameters

 
@@ -48,7 +48,7 @@ 
Description

   special meaning:

 
 
http://username:password@www.example.com:80/path/to/file.php?foo=316&bar=this+has+spaces#anchor

+  class="brush: plain">http://username:password@www.example.com:80/path/to/file.php?foo=316&bar=this+has+spaces#anchor

 
 
Hence encodeURI() does not encode characters that are
   necessary to formulate a complete URI. Also, encodeURI() does
@@ -58,7 +58,7 @@ 
Description

 
 
encodeURI() escapes all characters except:

 
-
Not Escaped:
+
Not Escaped:
 
     A-Z a-z 0-9 ; , / ? : @ & = + $ - _ . ! ~ * ' ( ) #
 
@@ -71,7 +71,7 @@ 
encodeURI vs encodeURIComponent

 
encodeURI() differs from {{jsxref("encodeURIComponent",
   "encodeURIComponent()")}} as follows:

 
-
var set1 = ";,/?:@&=+$#"; // Reserved Characters
+
var set1 = ";,/?:@&=+$#"; // Reserved Characters
 var set2 = "-_.!~*'()";   // Unreserved Marks
 var set3 = "ABC abc 123"; // Alphanumeric Characters + Space
 
@@ -96,7 +96,7 @@ 
Encoding a lone high surrogate th
 
An {{jsxref("URIError")}} will be thrown if one attempts to encode a surrogate which is
   not part of a high-low pair, e.g.,

 
-
// high-low pair ok
+
// high-low pair ok
 console.log(encodeURI('\uD800\uDFFF'));
 
 // lone high surrogate throws "URIError: malformed URI sequence"
@@ -112,7 +112,7 @@ 
Encoding for IPv6

   brackets reserved (for {{glossary("IPv6")}}) and thus not encoded when forming something
   which could be part of a URL (such as a host), the following code snippet may help:

 
-
function fixedEncodeURI(str) {
+
function fixedEncodeURI(str) {
     return encodeURI(str).replace(/%5B/g, '[').replace(/%5D/g, ']');
 }

 
diff --git a/files/en-us/web/javascript/reference/global_objects/encodeuricomponent/index.html b/files/en-us/web/javascript/reference/global_objects/encodeuricomponent/index.html
index 7c9c0ed7b340d01..06ae744664cd1ac 100644
--- a/files/en-us/web/javascript/reference/global_objects/encodeuricomponent/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/encodeuricomponent/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
encodeURIComponent(str);

+
encodeURIComponent(str);

 
 
Parameters

 
@@ -43,7 +43,7 @@ 
Description

 
 
encodeURIComponent() escapes all characters except:

 
-
Not Escaped:
+
Not Escaped:
 
     A-Z a-z 0-9 - _ . ! ~ * ' ( )
 
@@ -52,7 +52,7 @@ 
Description

 
encodeURIComponent() differs from encodeURI
   as follows:

 
-
var set1 = ";,/?:@&=+$";  // Reserved Characters
+
var set1 = ";,/?:@&=+$";  // Reserved Characters
 var set2 = "-_.!~*'()";   // Unescaped Characters
 var set3 = "#";           // Number Sign
 var set4 = "ABC abc 123"; // Alphanumeric Characters + Space
@@ -72,7 +72,7 @@ 
Description

 
Note that a {{jsxref("URIError")}} will be thrown if one attempts to encode a surrogate
   which is not part of a high-low pair, e.g.,

 
-
// high-low pair ok
+
// high-low pair ok
 console.log(encodeURIComponent('\uD800\uDFFF'));
 
 // lone high surrogate throws "URIError: malformed URI sequence"
@@ -98,7 +98,7 @@ 
Description

   and *), even though these characters have no formalized URI delimiting uses, the
   following can be safely used:

 
-
function fixedEncodeURIComponent(str) {
+
function fixedEncodeURIComponent(str) {
   return encodeURIComponent(str).replace(/[!'()*]/g, function(c) {
     return '%' + c.charCodeAt(0).toString(16);
   });
@@ -114,7 +114,7 @@ 
Encoding for
   {{HTTPHeader("Content-Disposition")}} and {{HTTPHeader("Link")}} server response header
   parameters (e.g., UTF-8 filenames):

 
-
var fileName = 'my file(2).txt';
+
var fileName = 'my file(2).txt';
 var header = "Content-Disposition: attachment; filename*=UTF-8''"
              + encodeRFC5987ValueChars(fileName);
 
diff --git a/files/en-us/web/javascript/reference/global_objects/error/columnnumber/index.html b/files/en-us/web/javascript/reference/global_objects/error/columnnumber/index.html
index eac5a801ab724cb..2f226fe1ecff6ed 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/columnnumber/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/columnnumber/index.html
@@ -15,7 +15,7 @@ 
Examples

 
 
Using columnNumber

 
-
var e = new Error('Could not parse input');
+
var e = new Error('Could not parse input');
 throw e;
 console.log(e.columnNumber) // 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/error/filename/index.html b/files/en-us/web/javascript/reference/global_objects/error/filename/index.html
index 2f3fa1928fdd7c5..cb2c7c94b1d5fea 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/filename/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/filename/index.html
@@ -19,7 +19,7 @@ 
Examples

 
 
Using fileName

 
-
var e = new Error('Could not parse input');
+
var e = new Error('Could not parse input');
 throw e;
 // e.fileName could look like "file:///C:/example.html"
 

diff --git a/files/en-us/web/javascript/reference/global_objects/error/index.html b/files/en-us/web/javascript/reference/global_objects/error/index.html
index d38aa638346f6d7..33a5311f2e4eda1 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/index.html
@@ -86,7 +86,7 @@ 
Throwing a generic error

 
 
Usually you create an Error object with the intention of raising it using the {{JSxRef("Statements/throw", "throw")}} keyword. You can handle the error using the {{JSxRef("Statements/try...catch", "try...catch")}} construct:

 
-
try {
+
try {
   throw new Error('Whoops!')
 } catch (e) {
   console.error(e.name + ': ' + e.message)
@@ -97,7 +97,7 @@ 
Handling a specific error

 
 
You can choose to handle only specific error types by testing the error type with the error's {{JSxRef("Object.prototype.constructor", "constructor")}} property or, if you're writing for modern JavaScript engines, {{JSxRef("Operators/instanceof", "instanceof")}} keyword:

 
-
try {
+
try {
   foo.bar()
 } catch (e) {
   if (e instanceof EvalError) {
@@ -125,7 +125,7 @@ 
ES6 Custom Error Class

 
Some browsers include the CustomError constructor in the stack trace when using ES2015 classes.

 
 
-
class CustomError extends Error {
+
class CustomError extends Error {
   constructor(foo = 'bar', ...params) {
     // Pass remaining arguments (including vendor specific ones) to parent constructor
     super(...params)
@@ -157,7 +157,7 @@ 
ES5 Custom Error Object

 
All browsers include the CustomError constructor in the stack trace when using a prototypal declaration.

 
 
-
function CustomError(foo, message, fileName, lineNumber) {
+
function CustomError(foo, message, fileName, lineNumber) {
   var instance = new Error(message, fileName, lineNumber);
   instance.name = 'CustomError';
   instance.foo = foo;
diff --git a/files/en-us/web/javascript/reference/global_objects/error/linenumber/index.html b/files/en-us/web/javascript/reference/global_objects/error/linenumber/index.html
index c9194ab2c833255..60732e85091b9ff 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/linenumber/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/linenumber/index.html
@@ -16,14 +16,14 @@ 
Examples

 
 
Using lineNumber

 
-
var e = new Error('Could not parse input');
+
var e = new Error('Could not parse input');
 throw e;
 console.log(e.lineNumber) // 2
 

 
 
Alternative example using error event

 
-
window.addEventListener('error', function(e) {
+
window.addEventListener('error', function(e) {
   console.log(e.lineNumber); // 5
 });
 var e = new Error('Could not parse input');
diff --git a/files/en-us/web/javascript/reference/global_objects/error/message/index.html b/files/en-us/web/javascript/reference/global_objects/error/message/index.html
index 0f5b236658619fd..1e109c9f0936bc1 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/message/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/message/index.html
@@ -20,7 +20,7 @@ 
Examples

 
 
Throwing a custom error

 
-
var e = new Error('Could not parse input');
+
var e = new Error('Could not parse input');
 // e.message is 'Could not parse input'
 throw e;
 

diff --git a/files/en-us/web/javascript/reference/global_objects/error/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/error/tosource/index.html
index d969f17f8e409a9..ee7d5e474300879 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/tosource/index.html
@@ -14,7 +14,7 @@
 
 
Syntax

 
-
e.toSource()

+
e.toSource()

 
 
Return value

 
@@ -32,7 +32,7 @@ 
Using toSource

   the source follows the structure of the {{jsxref("Error")}} constructor. For example:
 

 
-
(newname(message ,fileName,lineNumber))
+
(newname(message ,fileName,lineNumber))
 

 
 
where these attributes correspond to the respective properties of the error instance.
diff --git a/files/en-us/web/javascript/reference/global_objects/error/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/error/tostring/index.html
index 9919762ca95277a..9674d06ced4ffd9 100644
--- a/files/en-us/web/javascript/reference/global_objects/error/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/error/tostring/index.html
@@ -13,7 +13,7 @@
 
 
Syntax

 
-
e.toString()

+
e.toString()

 
 
Return value

 
@@ -25,7 +25,7 @@ 
Description

   method inherited by all objects. Its semantics are as follows (assuming
   {{jsxref("Object")}} and {{jsxref("String")}} have their original values):

 
-
Error.prototype.toString = function() {
+
Error.prototype.toString = function() {
   'use strict';
 
   var obj = Object(this);
@@ -54,7 +54,7 @@ 
Examples

 
 
Using toString()

 
-
var e1 = new Error('fatal error');
+
var e1 = new Error('fatal error');
 console.log(e1.toString()); // 'Error: fatal error'
 
 var e2 = new Error('fatal error');
diff --git a/files/en-us/web/javascript/reference/global_objects/escape/index.html b/files/en-us/web/javascript/reference/global_objects/escape/index.html
index 4ef906bcc9567a6..41c2cbdcdda4230 100644
--- a/files/en-us/web/javascript/reference/global_objects/escape/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/escape/index.html
@@ -38,7 +38,7 @@
 
 
Syntax

 
-
escape(str)

+
escape(str)

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/eval/index.html b/files/en-us/web/javascript/reference/global_objects/eval/index.html
index fe6ae3ecf2b1d76..8730ae3d3845165 100644
--- a/files/en-us/web/javascript/reference/global_objects/eval/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/eval/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
eval(string)

+
eval(string)

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/evalerror/evalerror/index.html b/files/en-us/web/javascript/reference/global_objects/evalerror/evalerror/index.html
index 69dd86577f40dcb..8527a9398ea0306 100644
--- a/files/en-us/web/javascript/reference/global_objects/evalerror/evalerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/evalerror/evalerror/index.html
@@ -16,7 +16,7 @@
 
Syntax

 
 
new EvalError([message[, fileName[, lineNumber]]])

+  class="brush: js">new EvalError([message[, fileName[, lineNumber]]])

 
 
Parameters

 
@@ -37,7 +37,7 @@ 
Examples

 
 
Creating an EvalError

 
-
try {
+
try {
   throw new EvalError('Hello', 'someFile.js', 10);
 } catch (e) {
   console.log(e instanceof EvalError); // true
diff --git a/files/en-us/web/javascript/reference/global_objects/evalerror/index.html b/files/en-us/web/javascript/reference/global_objects/evalerror/index.html
index 02dc617729dab29..8f3244273aebf26 100644
--- a/files/en-us/web/javascript/reference/global_objects/evalerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/evalerror/index.html
@@ -42,7 +42,7 @@ 
Examples

 
 
Creating an EvalError

 
-
try {
+
try {
   throw new EvalError('Hello', 'someFile.js', 10);
 } catch (e) {
   console.log(e instanceof EvalError); // true
diff --git a/files/en-us/web/javascript/reference/global_objects/float32array/float32array/index.html b/files/en-us/web/javascript/reference/global_objects/float32array/float32array/index.html
index 6607726e88aa861..97f6f9d7c0f0ea0 100644
--- a/files/en-us/web/javascript/reference/global_objects/float32array/float32array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/float32array/float32array/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
new Float32Array(); // new in ES2017
+  class="brush: js">new Float32Array(); // new in ES2017
 new Float32Array(length);
 new Float32Array(typedArray);
 new Float32Array(object);
diff --git a/files/en-us/web/javascript/reference/global_objects/float32array/index.html b/files/en-us/web/javascript/reference/global_objects/float32array/index.html
index af3f038e6a27208..64a1df241656769 100644
--- a/files/en-us/web/javascript/reference/global_objects/float32array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/float32array/index.html
@@ -110,7 +110,7 @@ 
Examples

 
 
Different ways to create a Float32Array

 
-
// From a length
+
// From a length
 var float32 = new Float32Array(2);
 float32[0] = 42;
 console.log(float32[0]); // 42
diff --git a/files/en-us/web/javascript/reference/global_objects/float64array/float64array/index.html b/files/en-us/web/javascript/reference/global_objects/float64array/float64array/index.html
index 612b31089bf2dde..394f77f1a179fe4 100644
--- a/files/en-us/web/javascript/reference/global_objects/float64array/float64array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/float64array/float64array/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
new Float64Array(); // new in ES2017
+  class="brush: js">new Float64Array(); // new in ES2017
 new Float64Array(length);
 new Float64Array(typedArray);
 new Float64Array(object);
diff --git a/files/en-us/web/javascript/reference/global_objects/function/apply/index.html b/files/en-us/web/javascript/reference/global_objects/function/apply/index.html
index 7e180b7a1a2aac4..78cb5b2fe7520b6 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/apply/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/apply/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
func.apply(thisArg, [ argsArray])

+
func.apply(thisArg, [ argsArray])

 
 
Parameters

 
@@ -76,7 +76,7 @@ 
Using apply to append an arra
 
 
apply to the rescue!

 
-
const array = ['a', 'b'];
+
const array = ['a', 'b'];
 const elements = [0, 1, 2];
 array.push.apply(array, elements);
 console.info(array); // ["a", "b", 0, 1, 2]
@@ -88,7 +88,7 @@ 
Using apply and built-in functionsAs an example, here are Math.max/Math.min, used to find out the maximum/minimum value in an array.

 
-
// min/max number in an array
+
// min/max number in an array
 const numbers = [5, 6, 2, 3, 7];
 
 // using Math.min/Math.max apply
@@ -117,7 +117,7 @@ 
Using apply and built-in functionsIf your value array might grow into the tens of thousands, use a hybrid strategy: apply your function to chunks of the array at a time:

 
-
function minOfArray(arr) {
+
function minOfArray(arr) {
   let min = Infinity;
   let QUANTUM = 32768;
 
@@ -139,7 +139,7 @@ 
Using apply to chain constructors
In the following example we will create a global {{jsxref("Function")}} method called construct, which will enable you to use an array-like object with a constructor instead of an arguments list.

 
-
Function.prototype.construct = function(aArgs) {
+
Function.prototype.construct = function(aArgs) {
   let oNew = Object.create(this.prototype);
   this.apply(oNew, aArgs);
   return oNew;
@@ -151,7 +151,7 @@ 
Using apply to chain constructors
Using {{jsxref("Object/__proto__", "Object.__proto__")}}:

 
-
Function.prototype.construct = function (aArgs) {
+
Function.prototype.construct = function (aArgs) {
   let oNew = {};
   oNew.__proto__ = this.prototype;
   this.apply(oNew, aArgs);
@@ -161,7 +161,7 @@ 
Using apply to chain constructors
Using closures:

 
-
Function.prototype.construct = function(aArgs) {
+
Function.prototype.construct = function(aArgs) {
   let fConstructor = this, fNewConstr = function() {
     fConstructor.apply(this, aArgs);
   };
@@ -171,7 +171,7 @@ 
Using apply to chain constructors
Using the {{jsxref("Function")}} constructor:

 
-
Function.prototype.construct = function (aArgs) {
+
Function.prototype.construct = function (aArgs) {
   let fNewConstr = new Function("");
   fNewConstr.prototype = this.prototype;
   let oNew = new fNewConstr();
@@ -183,7 +183,7 @@ 
Using apply to chain constructors
Example usage:

 
-
function MyConstructor() {
+
function MyConstructor() {
   for (let nProp = 0; nProp < arguments.length; nProp++) {
     this['property' + nProp] = arguments[nProp];
   }
diff --git a/files/en-us/web/javascript/reference/global_objects/function/bind/index.html b/files/en-us/web/javascript/reference/global_objects/function/bind/index.html
index 2971ddc5323e5a3..ac158a974eba04e 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/bind/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/bind/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
let boundFunc = func.bind(thisArg[, arg1[, arg2[, ...argN]]])
+
let boundFunc = func.bind(thisArg[, arg1[, arg2[, ...argN]]])
 

 
 
Parameters

@@ -104,7 +104,7 @@ 
Creating a bound function

 
Without special care, however, the original object is usually lost. Creating a bound
   function from the function, using the original object, neatly solves this problem:

 
-
this.x = 9;    // 'this' refers to global 'window' object here in a browser
+
this.x = 9;    // 'this' refers to global 'window' object here in a browser
 const module = {
   x: 81,
   getX: function() { return this.x; }
@@ -134,7 +134,7 @@ 
Partially applied functions

   inserted at the start of the arguments passed to the target function, followed by
   whatever arguments are passed bound function at the time it is called.

 
-
function list() {
+
function list() {
   return Array.prototype.slice.call(arguments);
 }
 
@@ -176,7 +176,7 @@ 
With setTimeout()

   that require this to refer to class instances, you may explicitly bind
   this to the callback function, in order to maintain the instance.

 
-
function LateBloomer() {
+
function LateBloomer() {
   this.petalCount = Math.floor(Math.random() * 12) + 1;
 }
 
@@ -211,7 +211,7 @@ 
Bound functions used as constructo
 
 
However, provided arguments are still prepended to the constructor call:

 
-
function Point(x, y) {
+
function Point(x, y) {
   this.x = x;
   this.y = y;
 }
@@ -248,7 +248,7 @@ 
Bound functions used as constructo
   called plainly, even if you would rather require the bound function to only be called
   using {{jsxref("Operators/new", "new")}}.

 
-
//  Example can be run directly in your JavaScript console
+
//  Example can be run directly in your JavaScript console
 //  ...continued from above
 
 //  Can still be called as a normal function
@@ -271,7 +271,7 @@ 
Creating shortcuts

   converting an array-like object to a real array. You could create a shortcut like this:
 

 
-
const slice = Array.prototype.slice;
+
const slice = Array.prototype.slice;
 
 // ...
 
@@ -287,7 +287,7 @@ 
Creating shortcuts

   {{jsxref("Array.prototype")}}. This means that additional apply() calls can
   be eliminated:

 
-
//  same as "slice" in the previous example
+
//  same as "slice" in the previous example
 const unboundSlice = Array.prototype.slice;
 const slice = Function.prototype.apply.bind(unboundSlice);
 
@@ -315,7 +315,7 @@ 
Polyfill

 
Generally, in most code it's very rare to see new used on a bound
   function, so it is generally best to go with the first option.

 
-
//  Does not work with `new (funcA.bind(thisArg, args))`
+
//  Does not work with `new (funcA.bind(thisArg, args))`
 if (!Function.prototype.bind) (function(){
   var slice = Array.prototype.slice;
   Function.prototype.bind = function() {
@@ -338,7 +338,7 @@ 
Polyfill

   your scripts, allowing use of much of the functionality of bind() in
   implementations that do not natively support it.

 
-
//  Yes, it does work with `new (funcA.bind(thisArg, args))`
+
//  Yes, it does work with `new (funcA.bind(thisArg, args))`
 if (!Function.prototype.bind) (function(){
   var ArrayPrototypeSlice = Array.prototype.slice;
   Function.prototype.bind = function(otherThis) {
diff --git a/files/en-us/web/javascript/reference/global_objects/function/call/index.html b/files/en-us/web/javascript/reference/global_objects/function/call/index.html
index 6cebb3e34ae9116..ec0710b8707e73f 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/call/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/call/index.html
@@ -17,7 +17,7 @@
 
Syntax

 
 
func.call([thisArg[, arg1, arg2, ...argN]])

+  class="brush: js">func.call([thisArg[, arg1, arg2, ...argN]])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/function/caller/index.html b/files/en-us/web/javascript/reference/global_objects/function/caller/index.html
index 8af16a8c8a4650c..1b85e5f84323e00 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/caller/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/caller/index.html
@@ -23,24 +23,24 @@ 
Notes

 
 
Note that in case of recursion, you can't reconstruct the call stack using this property. Consider:

 
-
function f(n) { g(n - 1); }
+
function f(n) { g(n - 1); }
 function g(n) { if (n > 0) { f(n); } else { stop(); } }
 f(2);
 

 
 
At the moment stop() is called the call stack will be:

 
-
f(2) -> g(1) -> f(1) -> g(0) -> stop()
+
f(2) -> g(1) -> f(1) -> g(0) -> stop()
 

 
 
The following is true:

 
-
stop.caller === g && f.caller === g && g.caller === f
+
stop.caller === g && f.caller === g && g.caller === f
 

 
 
so if you tried to get the stack trace in the stop() function like this:

 
-
var f = stop;
+
var f = stop;
 var stack = 'Stack trace:';
 while (f) {
   stack += '\n' + f.name;
@@ -56,7 +56,7 @@ 
Checking the value of
 
 
The following code checks the value a function's caller property.

 
-
function myFunc() {
+
function myFunc() {
   if (myFunc.caller == null) {
     return 'The function was called from the top!';
   } else {
diff --git a/files/en-us/web/javascript/reference/global_objects/function/function/index.html b/files/en-us/web/javascript/reference/global_objects/function/function/index.html
index 83245a64f0522a9..04bf1e0a91d62c6 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/function/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/function/index.html
@@ -27,7 +27,7 @@
 
Syntax

 
 
new Function([arg1 [, arg2 [, ...argN]] ,] functionBody)

+  class="brush: js">new Function([arg1 [, arg2 [, ...argN]] ,] functionBody)

 
 
Parameters

 
@@ -65,7 +65,7 @@ 
Specifying arguments
 
 
The following code creates a Function object that takes two arguments.

 
-
// Example can be run directly in your JavaScript console
+
// Example can be run directly in your JavaScript console
 
 // Create a function that takes two arguments, and returns the sum of those arguments
 const adder = new Function('a', 'b', 'return a + b');
diff --git a/files/en-us/web/javascript/reference/global_objects/function/index.html b/files/en-us/web/javascript/reference/global_objects/function/index.html
index 10a1fab53a890db..5556b4861fe55d2 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/index.html
@@ -54,7 +54,7 @@ 
Differ
 
 
Functions created with the Function constructor do not create closures to their creation contexts; they always are created in the global scope. When running them, they will only be able to access their own local variables and global ones, not the ones from the scope in which the Function constructor was created. This is different from using {{jsxref("eval")}} with code for a function expression.

 
-
var x = 10;
+
var x = 10;
 
 function createFunction1() {
     var x = 20;
diff --git a/files/en-us/web/javascript/reference/global_objects/function/length/index.html b/files/en-us/web/javascript/reference/global_objects/function/length/index.html
index 5f25b6fd7a1f2a4..c582c25d1bf2588 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/length/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/length/index.html
@@ -32,7 +32,7 @@ 
Examples

 
 
Using function length

 
-
console.log(Function.length); /* 1 */
+
console.log(Function.length); /* 1 */
 
 console.log((function()        {}).length); /* 0 */
 console.log((function(a)       {}).length); /* 1 */
diff --git a/files/en-us/web/javascript/reference/global_objects/function/name/index.html b/files/en-us/web/javascript/reference/global_objects/function/name/index.html
index 713c097999d3ac1..634993e23ac6482 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/name/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/name/index.html
@@ -27,7 +27,7 @@ 
JavaScript compressors and minifie
 
 
Source code such as:

 
-
function Foo() {};
+
function Foo() {};
 let foo = new Foo();
 
 if (foo.constructor.name === 'Foo') {
@@ -39,7 +39,7 @@ 
JavaScript compressors and minifie
 
 
may be compressed to:

 
-
function a() {};
+
function a() {};
 let b = new a();
 if (b.constructor.name === 'Foo') {
   console.log("'foo' is an instance of 'Foo'");
@@ -56,7 +56,7 @@ 
Function statement name

 
 
The name property returns the name of a function statement.

 
-
function doSomething() {}
+
function doSomething() {}
 doSomething.name; // "doSomething"
 

 
@@ -64,13 +64,13 @@ 
Function constructor name

 
 
Functions created with the syntax new Function(...) or just Function(...) create {{jsxref("Function")}} objects and their name is "anonymous".

 
-
(new Function).name; // "anonymous"

+
(new Function).name; // "anonymous"

 
 
Anonymous function expression

 
 
Anonymous function expressions that were created using the keyword function or arrow functions would have "" (an empty string) as their name.

 
-
(function() {}).name; // ""
+
(function() {}).name; // ""
 (() => {}).name; // ""
 

 
@@ -78,7 +78,7 @@ 
Inferred function names

 
 
Variables and methods can infer the name of an anonymous function from its syntactic position (new in ECMAScript 2015).

 
-
let f = function() {};
+
let f = function() {};
 let object = {
   someMethod: function() {}
 };
@@ -89,7 +89,7 @@ 
Inferred function names

 
 
You can define a function with a name in a {{jsxref("Operators/Function", "function expression", "", 1)}}:

 
-
let object = {
+
let object = {
   someMethod: function object_someMethod() {}
 };
 console.log(object.someMethod.name); // logs "object_someMethod"
@@ -104,7 +104,7 @@ 
Inferred function names

 
Example below contradicts with what is said at the beginning of this section and doesn't work as described.

 
 
-
 let object = {
+
 let object = {
   // anonymous
   someMethod: function() {}
 };
@@ -117,7 +117,7 @@ 
Inferred function names

 
 
Shorthand method names

 
-
var o = {
+
var o = {
   foo(){}
 };
 o.foo.name; // "foo";

@@ -126,7 +126,7 @@ 
Bound function names

 
 
{{jsxref("Function.bind()")}} produces a function whose name is "bound " plus the function name.

 
-
function foo() {};
+
function foo() {};
 foo.bind({}).name; // "bound foo"
 

 
@@ -134,7 +134,7 @@ 
Function names for getters and s
 
 
When using get and set accessor properties, "get" or "set" will appear in the function name.

 
-
let o = {
+
let o = {
   get foo(){},
   set foo(x){}
 };
@@ -147,7 +147,7 @@ 
Function names in classes

 
 
You can use obj.constructor.name to check the "class" of an object (but be sure to read the warnings below):

 
-
function Foo() {}  // ES2015 Syntax: class Foo {}
+
function Foo() {}  // ES2015 Syntax: class Foo {}
 
 var fooInstance = new Foo();
 console.log(fooInstance.constructor.name); // logs "Foo"
@@ -159,7 +159,7 @@ 
Function names in classes

 
 
Therefore we can't obtain the class name for virtually any class with a static method property name():

 
-
class Foo {
+
class Foo {
   constructor() {}
   static name() {}
 }
@@ -167,20 +167,20 @@ 
Function names in classes

 
 
With a static name() method Foo.name no longer holds the actual class name but a reference to the name() function object. Above class definition in ES2015 syntax will behave in Chrome or Firefox similar to the following snippet in ES5 syntax:

 
-
function Foo() {}
+
function Foo() {}
 Object.defineProperty(Foo, 'name', { writable: true });
 Foo.name = function() {};
 

 
 
Trying to obtain the class of fooInstance via fooInstance.constructor.name won't give us the class name at all but a reference to the static class method. Example:

 
-
let fooInstance = new Foo();
+
let fooInstance = new Foo();
 console.log(fooInstance.constructor.name); // logs function name()
 

 
 
You may also see from the ES5 syntax example that in Chrome or Firefox our static definition of Foo.name becomes writable. The built-in definition in the absence of a custom static definition is read-only:

 
-
Foo.name = 'Hello';
+
Foo.name = 'Hello';
 console.log(Foo.name); // logs "Hello" if class Foo has a static name() property but "Foo" if not.
 

 
@@ -190,7 +190,7 @@ 
Symbols as function names

 
 
If a {{jsxref("Symbol")}} is used a function name and the symbol has a description, the method's name is the description in square brackets.

 
-
let sym1 = Symbol("foo");
+
let sym1 = Symbol("foo");
 let sym2 = Symbol();
 let o = {
   [sym1]: function(){},
diff --git a/files/en-us/web/javascript/reference/global_objects/function/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/function/tosource/index.html
index ecb256b819f144e..0bda29e5d0b1cb9 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/tosource/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
function.toSource();
+
function.toSource();
 

 
 
Return value

@@ -31,7 +31,7 @@ 
Native functions

 
For the built-in {{jsxref("Function")}} object, toSource() returns the
   following string indicating that the source code is not available:

 
-
function Function() {
+
function Function() {
   [native code]
 }
 

@@ -41,7 +41,7 @@ 
Custom functions

 
For custom functions, toSource() returns the JavaScript source that
   defines the object as a string.

 
-
// For example:
+
// For example:
 function hello() {
   console.log("Hello, World!");
 }
@@ -49,7 +49,7 @@ 
Custom functions

 hello.toSource();
 

 
-
// Results in:
+
// Results in:
 "function hello() {
     console.log(\"Hello, World!\");
 }"

diff --git a/files/en-us/web/javascript/reference/global_objects/function/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/function/tostring/index.html
index babc15a80a65597..6521459377348f9 100644
--- a/files/en-us/web/javascript/reference/global_objects/function/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/function/tostring/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
function.toString()

+
function.toString()

 
 
Return value

 
@@ -44,14 +44,14 @@ 
Description

     ("Function.prototype.toString called on incompatible object"), if its
     this value object is not a Function object.

 
-
Function.prototype.toString.call('foo'); // TypeError
+
Function.prototype.toString.call('foo'); // TypeError
 

 
 
If the toString() method is called on built-in function objects or a
     function created by Function.prototype.bind, toString()
     returns a native function string which looks like

 
-
"function () {\n    [native code]\n}"
+
"function () {\n    [native code]\n}"
 

 
 
If the toString() method is called on a function created by the
@@ -62,7 +62,7 @@ 
Description

 
It's also possible to explicitly get the string representation of a function using the
     + operator:

 
-
function foo() { return 'bar' }
+
function foo() { return 'bar' }
 console.log(foo + ''); // "function foo() { return 'bar' }"

 
 
Examples

@@ -80,125 +80,125 @@ 
Comparing actual sour
     
         
             
-                
+                
 function f(){}

             
             
-                
+                
 "function f(){}"

             
         
         
             
-                
+                
 class A { a(){} }

             
             
-                
+                
 "class A { a(){} }"

             
         
         
             
-                
+                
 function* g(){}

             
             
-                
+                
 "function* g(){}"

             
         
         
             
-                
+                
 a => a

             
             
-                
+                
 "a => a"

             
         
         
             
-                
+                
 ({ a(){} }.a)

             
             
-                
+                
 "a(){}"

             
         
         
             
-                
+                
 ({ *a(){} }.a)

             
             
-                
+                
 "*a(){}"

             
         
         
             
-                
+                
 ({ [0](){} }[0])

             
             
-                
+                
 "[0](){}"

             
         
         
             
-                
+                
 Object.getOwnPropertyDescriptor({
     get a(){}
 }, "a").get

             
             
-                
+                
 "get a(){}"

             
         
         
             
-                
+                
 Object.getOwnPropertyDescriptor({
     set a(x){}
 }, "a").set

             
             
-                
+                
 "set a(x){}"

             
         
         
             
-                
+                
 Function.prototype.toString

             
             
-                
+                
 "function toString() { [native code] }"

             
         
         
             
-                
+                
 (function f(){}.bind(0))

             
             
-                
+                
 "function () { [native code] }"

             
         
         
             
-                
+                
 Function("a", "b")

             
             
-                
+                
 "function anonymous(a\n) {\nb\n}"

             
         
diff --git a/files/en-us/web/javascript/reference/global_objects/generator/index.html b/files/en-us/web/javascript/reference/global_objects/generator/index.html
index a4c7ea1a4fd270c..e07afea292d947a 100644
--- a/files/en-us/web/javascript/reference/global_objects/generator/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/generator/index.html
@@ -18,7 +18,7 @@ 
Constructor

 
 
This object cannot be instantiated directly. Instead, a Generator instance can be returned from a generator function:

 
-
function* generator() {
+
function* generator() {
   yield 1;
   yield 2;
   yield 3;
@@ -45,7 +45,7 @@ 
Examples

 
 
An infinite iterator

 
-
function* infinite() {
+
function* infinite() {
     let index = 0;
 
     while (true) {
diff --git a/files/en-us/web/javascript/reference/global_objects/generator/next/index.html b/files/en-us/web/javascript/reference/global_objects/generator/next/index.html
index b5ddb78dd4169c6..ec4144a14438f31 100644
--- a/files/en-us/web/javascript/reference/global_objects/generator/next/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/generator/next/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
gen.next(value)

+  class="brush: js">gen.next(value)

 
 
Parameters

 
@@ -56,7 +56,7 @@ 
Using next()

 
The following example shows a simple generator and the object that the
   next method returns:

 
-
function* gen() {
+
function* gen() {
   yield 1;
   yield 2;
   yield 3;
@@ -71,7 +71,7 @@ 
Using next()

 
 
Using next() with a list

 
-
function* getPage(pageSize = 1, list) {
+
function* getPage(pageSize = 1, list) {
     let output = [];
     let index = 0;
 
@@ -104,7 +104,7 @@ 
Sending values to the generator

 
Note that the first call does not log anything, because the generator was not yielding
   anything initially.

 
-
function* gen() {
+
function* gen() {
   while (true) {
     let value = yield null;
     console.log(value);
diff --git a/files/en-us/web/javascript/reference/global_objects/generator/return/index.html b/files/en-us/web/javascript/reference/global_objects/generator/return/index.html
index 5d21eead788fa9d..420feb786d056f8 100644
--- a/files/en-us/web/javascript/reference/global_objects/generator/return/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/generator/return/index.html
@@ -16,7 +16,7 @@
 
 
Syntax

 
-
gen.return(value)

+
gen.return(value)

 
 
Parameters

 
@@ -35,7 +35,7 @@ 
Using return()

 
 
The following example shows a simple generator and the return method.

 
-
function* gen() {
+
function* gen() {
   yield 1;
   yield 2;
   yield 3;
@@ -55,7 +55,7 @@ 
Using return()

   same as if .next(). If an argument is provided, it will be set to the value
   of the value property of the returned object.

 
-
function* gen() {
+
function* gen() {
   yield 1;
   yield 2;
   yield 3;
diff --git a/files/en-us/web/javascript/reference/global_objects/generator/throw/index.html b/files/en-us/web/javascript/reference/global_objects/generator/throw/index.html
index 9bc985779d7fcdb..0237018463d4eaa 100644
--- a/files/en-us/web/javascript/reference/global_objects/generator/throw/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/generator/throw/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
gen.throw(exception)

+  class="brush: js">gen.throw(exception)

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Using throw()

   throw method. An error can be caught by a
   {{jsxref("Statements/try...catch", "try...catch")}} block as usual.

 
-
function* gen() {
+
function* gen() {
   while(true) {
     try {
        yield 42;
diff --git a/files/en-us/web/javascript/reference/global_objects/generatorfunction/index.html b/files/en-us/web/javascript/reference/global_objects/generatorfunction/index.html
index 0af21abcdb25a62..5a4f6303d0b699b 100644
--- a/files/en-us/web/javascript/reference/global_objects/generatorfunction/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/generatorfunction/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
new GeneratorFunction ([arg1[, arg2[, ...argN]],] functionBody)

+  class="brush: js">new GeneratorFunction ([arg1[, arg2[, ...argN]],] functionBody)

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/int32array/index.html b/files/en-us/web/javascript/reference/global_objects/int32array/index.html
index d11e9446915555f..f8cbcf9460167db 100644
--- a/files/en-us/web/javascript/reference/global_objects/int32array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/int32array/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
new Int32Array(); // new in ES2017
+
new Int32Array(); // new in ES2017
 new Int32Array(length);
 new Int32Array(typedArray);
 new Int32Array(object);
@@ -58,7 +58,7 @@ 
Examples

 
Different ways to create an Int32Array
 

 
-
// From a length
+
// From a length
 var int32 = new Int32Array(2);
 int32[0] = 42;
 console.log(int32[0]); // 42
@@ -111,11 +111,11 @@ 
Compatibility notes

   Int32Array constructor as a function without new, will throw a
   {{jsxref("TypeError")}} from now on.

 
-
var dv = Int32Array([1, 2, 3]);
+
var dv = Int32Array([1, 2, 3]);
 // TypeError: calling a builtin Int32Array constructor
 // without new is forbidden

 
-
var dv = new Int32Array([1, 2, 3]);

+
var dv = new Int32Array([1, 2, 3]);

 
 
See also

 
diff --git a/files/en-us/web/javascript/reference/global_objects/int32array/int32array/index.html b/files/en-us/web/javascript/reference/global_objects/int32array/int32array/index.html
index 80d332cc83c1c4c..38ab2d16dccdd30 100644
--- a/files/en-us/web/javascript/reference/global_objects/int32array/int32array/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/int32array/int32array/index.html
@@ -18,7 +18,7 @@
 
 
Syntax

 
-
new Int32Array(); // new in ES2017
+
new Int32Array(); // new in ES2017
 new Int32Array(length);
 new Int32Array(typedArray);
 new Int32Array(object);
@@ -58,7 +58,7 @@ 
Examples

 
Different ways to create an Int32Array
 

 
-
// From a length
+
// From a length
 var int32 = new Int32Array(2);
 int32[0] = 42;
 console.log(int32[0]); // 42
@@ -111,11 +111,11 @@ 
Compatibility notes

   Int32Array constructor as a function without new, will throw a
   {{jsxref("TypeError")}} from now on.

 
-
var dv = Int32Array([1, 2, 3]);
+
var dv = Int32Array([1, 2, 3]);
 // TypeError: calling a builtin Int32Array constructor
 // without new is forbidden

 
-
var dv = new Int32Array([1, 2, 3]);

+
var dv = new Int32Array([1, 2, 3]);

 
 
See also

 
diff --git a/files/en-us/web/javascript/reference/global_objects/internalerror/index.html b/files/en-us/web/javascript/reference/global_objects/internalerror/index.html
index c7428383dceaa41..af058c225eba3be 100644
--- a/files/en-us/web/javascript/reference/global_objects/internalerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/internalerror/index.html
@@ -50,7 +50,7 @@ 
Too much recursion

 
 
This recursive function runs 10 times, as per the exit condition.

 
-
function loop(x) {
+
function loop(x) {
   if (x >= 10) // "x >= 10" is the exit condition
     return;
   // do stuff
@@ -60,7 +60,7 @@ 
Too much recursion

 
 
Setting this condition to an extremely high value, won't work:

 
-
function loop(x) {
+
function loop(x) {
   if (x >= 1000000000000)
     return;
   // do stuff
diff --git a/files/en-us/web/javascript/reference/global_objects/internalerror/internalerror/index.html b/files/en-us/web/javascript/reference/global_objects/internalerror/internalerror/index.html
index f275952adbbba8f..7e9d2ff07b0e99f 100644
--- a/files/en-us/web/javascript/reference/global_objects/internalerror/internalerror/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/internalerror/internalerror/index.html
@@ -16,7 +16,7 @@
 
Syntax

 
 
new InternalError([message[, fileName[, lineNumber]]])

+  class="brush: js">new InternalError([message[, fileName[, lineNumber]]])

 
 
Parameters

 
@@ -33,7 +33,7 @@ 
Examples

 
 
Creating a new InternalError

 
-
new InternalError("Engine failure");
+
new InternalError("Engine failure");
 

 
 
Specifications

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/@@tostringtag/index.html b/files/en-us/web/javascript/reference/global_objects/intl/@@tostringtag/index.html
index d1f91dbc77764bc..6f85460e307a738 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/@@tostringtag/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/@@tostringtag/index.html
@@ -22,13 +22,13 @@
 
 
Syntax

 
-
Intl[Symbol.toStringTag]

+
Intl[Symbol.toStringTag]

 
 
Examples

 
 
Using toStringTag

 
-
Object.prototype.toString.call(Intl) // "[object Intl]"
+
Object.prototype.toString.call(Intl) // "[object Intl]"
 Intl.toString() // "[object Intl]"
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/collator/collator/index.html b/files/en-us/web/javascript/reference/global_objects/intl/collator/collator/index.html
index 22cd51136fe45a5..d869972d60cf0a7 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/collator/collator/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/collator/collator/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
new Intl.Collator([locales[, options]])

+	class="brush: js">new Intl.Collator([locales[, options]])

 
 
Parameters

 
@@ -154,7 +154,7 @@ 
Using Collator

 
The following example demonstrates the different potential results for a string
 	occurring before, after, or at the same level as another:

 
-
console.log(new Intl.Collator().compare('a', 'c')); // → a negative value
+
console.log(new Intl.Collator().compare('a', 'c')); // → a negative value
 console.log(new Intl.Collator().compare('c', 'a')); // → a positive value
 console.log(new Intl.Collator().compare('a', 'a')); // → 0
 

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/collator/compare/index.html b/files/en-us/web/javascript/reference/global_objects/intl/collator/compare/index.html
index 9e8f0a04871b34d..94ca2b492e2a6c4 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/collator/compare/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/collator/compare/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
collator.compare(string1, string2)

+	class="brush: js">collator.compare(string1, string2)

 
 
Parameters

 
@@ -49,7 +49,7 @@ 
Using compare for array sort

 	is bound to the collator from which it was obtained, so it can be passed directly to
 	{{jsxref("Array.prototype.sort()")}}.

 
-
var a = ['Offenbach', 'Österreich', 'Odenwald'];
+
var a = ['Offenbach', 'Österreich', 'Odenwald'];
 var collator = new Intl.Collator('de-u-co-phonebk');
 a.sort(collator.compare);
 console.log(a.join(', '));
@@ -61,7 +61,7 @@ 
 
Use the compare getter function for finding matching strings in arrays:
 

 
-
var a = ['Congrès', 'congres', 'Assemblée', 'poisson'];
+
var a = ['Congrès', 'congres', 'Assemblée', 'poisson'];
 var collator = new Intl.Collator('fr', { usage: 'search', sensitivity: 'base' });
 var s = 'congres';
 var matches = a.filter(v => collator.compare(v, s) === 0);
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/collator/index.html b/files/en-us/web/javascript/reference/global_objects/intl/collator/index.html
index 6e90d4278d4512e..d92ea97b27fef88 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/collator/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/collator/index.html
@@ -46,7 +46,7 @@ 
Using Collator

 
 
The following example demonstrates the different potential results for a string occurring before, after, or at the same level as another:

 
-
console.log(new Intl.Collator().compare('a', 'c')); // → a negative value
+
console.log(new Intl.Collator().compare('a', 'c')); // → a negative value
 console.log(new Intl.Collator().compare('c', 'a')); // → a positive value
 console.log(new Intl.Collator().compare('a', 'a')); // → 0
 

@@ -57,7 +57,7 @@ 
Using locales

 
 
The results provided by {{jsxref("Collator.prototype.compare()")}} vary between languages. In order to get the sort order of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument:

 
-
// in German, ä sorts with a
+
// in German, ä sorts with a
 console.log(new Intl.Collator('de').compare('ä', 'z'));
 // → a negative value
 
@@ -70,7 +70,7 @@ 
Using options

 
 
The results provided by {{jsxref("Collator.prototype.compare()")}} can be customized using the options argument:

 
-
// in German, ä has a as the base letter
+
// in German, ä has a as the base letter
 console.log(new Intl.Collator('de', { sensitivity: 'base' }).compare('ä', 'a'));
 // → 0
 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/collator/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/collator/resolvedoptions/index.html
index 60c185df9fab054..fcd61a1dc7a65cb 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/collator/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/collator/resolvedoptions/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
collator.resolvedOptions()

+
collator.resolvedOptions()

 
 
Return value

 
@@ -60,7 +60,7 @@ 
Examples

 
 
Using the resolvedOptions method

 
-
var de = new Intl.Collator('de', { sensitivity: 'base' })
+
var de = new Intl.Collator('de', { sensitivity: 'base' })
 var usedOptions = de.resolvedOptions();
 
 usedOptions.locale;            // "de"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/collator/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/collator/supportedlocalesof/index.html
index a053e5657153f03..b981bab30216156 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/collator/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/collator/supportedlocalesof/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
Intl.Collator.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.Collator.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -72,7 +72,7 @@ 
Using supportedLocalesOf()

 	also understand Indonesian, and therefore return the Balinese language tag as well.
 

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.Collator.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/datetimeformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/datetimeformat/index.html
index f4724d2eee21eae..1a29f6350772ef4 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/datetimeformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/datetimeformat/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
new Intl.DateTimeFormat([locales[, options]])

+	class="brush: js">new Intl.DateTimeFormat([locales[, options]])

 
 
Parameters

 
@@ -267,7 +267,7 @@ 
Using DateTimeFormat

 	locale and default options.

 
 
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+	class="brush: js">var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // toLocaleString without arguments depends on the implementation,
 // the default locale, and the default time zone
@@ -276,7 +276,7 @@ 
Using DateTimeFormat

 
 
Using timeStyle and dateStyle

 
-
let o = new Intl.DateTimeFormat("en" , {
+
let o = new Intl.DateTimeFormat("en" , {
   timeStyle: "short"
 });
 console.log(o.format(Date.now())); // "13:31 AM"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/format/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/format/index.html
index 7ae4a0ee795a9c4..658d328c6d1a286 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/format/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/format/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
dateTimeFormat.format(date)

+
dateTimeFormat.format(date)

 
 
Parameters

 
@@ -45,7 +45,7 @@ 
Using format

 
Use the format getter function for formatting a single date, here for
 	Serbia:

 
-
var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
+
var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
 var dateTimeFormat = new Intl.DateTimeFormat('sr-RS', options);
 console.log(dateTimeFormat.format(new Date()));
 // → "недеља, 7. април 2013."
@@ -58,7 +58,7 @@ 
Using format with map

 	from which it was obtained, so it can be passed directly to
 	{{jsxref("Array.prototype.map()")}}.

 
-
var a = [new Date(2012, 08), new Date(2012, 11), new Date(2012, 03)];
+
var a = [new Date(2012, 08), new Date(2012, 11), new Date(2012, 03)];
 var options = { year: 'numeric', month: 'long' };
 var dateTimeFormat = new Intl.DateTimeFormat('pt-BR', options);
 var formatted = a.map(dateTimeFormat.format);
@@ -78,7 +78,7 @@ 
Avoid comparing
 
For this reason you cannot expect to be able to compare the results of
 	format() to a static value:

 
-
let d = new Date("2019-01-01T00:00:00.000000Z");
+
let d = new Date("2019-01-01T00:00:00.000000Z");
 let formattedDate = Intl.DateTimeFormat(undefined, {
   year: 'numeric',
   month: 'numeric',
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrange/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrange/index.html
index d91df68dafa87c8..c9fc4d64b31dc41 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrange/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrange/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
Intl.DateTimeFormat.prototype.formatRange(startDate, endDate)

+  class="brush: js">Intl.DateTimeFormat.prototype.formatRange(startDate, endDate)

 
 
Examples

 
@@ -35,7 +35,7 @@ 
Basic formatRange usage

   concise way based on the locale and options provided when
   instantiating {{jsxref("DateTimeFormat", "Intl.DateTimeFormat")}}.

 
-
let date1 = new Date(Date.UTC(2007, 0, 10, 10, 0, 0));
+
let date1 = new Date(Date.UTC(2007, 0, 10, 10, 0, 0));
 let date2 = new Date(Date.UTC(2007, 0, 10, 11, 0, 0));
 let date3 = new Date(Date.UTC(2007, 0, 20, 10, 0, 0));
 // > 'Wed, 10 Jan 2007 10:00:00 GMT'
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrangetoparts/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrangetoparts/index.html
index a6adadd304afb8b..def788cb58d6838 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrangetoparts/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formatrangetoparts/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
Intl.DateTimeFormat.prototype.formatRangeToParts(startDate, endDate)

+	class="brush: js">Intl.DateTimeFormat.prototype.formatRangeToParts(startDate, endDate)

 
 
Examples

 
@@ -35,7 +35,7 @@ 
Basic formatRangeToParts usage

 	objects containing the locale-specific tokens representing each part of the formatted
 	date range.

 
-
let date1 = new Date(Date.UTC(2007, 0, 10, 10, 0, 0));
+
let date1 = new Date(Date.UTC(2007, 0, 10, 10, 0, 0));
 let date2 = new Date(Date.UTC(2007, 0, 10, 11, 0, 0));
 // > 'Wed, 10 Jan 2007 10:00:00 GMT'
 // > 'Wed, 10 Jan 2007 11:00:00 GMT'
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formattoparts/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formattoparts/index.html
index 64b551f4c77519a..8ab91b661889efa 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formattoparts/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/formattoparts/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
dateTimeFormat.formatToParts(date)

+  class="brush: js">dateTimeFormat.formatToParts(date)

 
 
Parameters

 
@@ -41,7 +41,7 @@ 
Description

   locale-specific parts. The structure the formatToParts() method returns,
   looks like this:

 
-
[
+
[
   { type: 'day', value: '17' },
   { type: 'weekday', value: 'Monday' }
 ]

@@ -101,7 +101,7 @@ 
Examples

 
DateTimeFormat outputs localized, opaque strings that cannot be
   manipulated directly:

 
-
var date = Date.UTC(2012, 11, 17, 3, 0, 42);
+
var date = Date.UTC(2012, 11, 17, 3, 0, 42);
 
 var formatter = new Intl.DateTimeFormat('en-us', {
   weekday: 'long',
@@ -125,7 +125,7 @@ 
Examples

   produced by DateTimeFormat formatters by providing you the string in parts:
 

 
-
formatter.formatToParts(date);
+
formatter.formatToParts(date);
 
 // return value:
 [
@@ -156,7 +156,7 @@ 
Examples

     href="/en-US/docs/Web/JavaScript/Reference/Template_literals">template literals,
   and {{jsxref("Array.prototype.join()")}}.

 
-
var dateString = formatter.formatToParts(date).map(({type, value}) => {
+
var dateString = formatter.formatToParts(date).map(({type, value}) => {
   switch (type) {
     case 'dayPeriod': return `<b>${value}</b>`;
     default : return value;
@@ -167,7 +167,7 @@ 
Examples

 
This will make the day period bold, when using the formatToParts() method.
 

 
-
console.log(formatter.format(date));
+
console.log(formatter.format(date));
 // "Monday, 12/17/2012, 3:00:42.000 AM"
 
 console.log(dateString);
@@ -185,7 +185,7 @@ 
Named Years and Mixed calendars

   value) will yield both the and the yearName Gregorian
   relatedYear:

 
-
let opts = { year: "numeric", month: "numeric", day: "numeric" };
+
let opts = { year: "numeric", month: "numeric", day: "numeric" };
 let df = new Intl.DateTimeFormat("zh-u-ca-chinese", opts);
 df.formatToParts(Date.UTC(2012, 11, 17, 3, 0, 42));
 
@@ -201,7 +201,7 @@ 
Named Years and Mixed calendars

 
If the year option is not set in the bag (to any value), the result will
   include only the relatedYear:

 
-
let df = new Intl.DateTimeFormat("zh-u-ca-chinese");
+
let df = new Intl.DateTimeFormat("zh-u-ca-chinese");
 df.formatToParts(Date.UTC(2012, 11, 17, 3, 0, 42));
 
 // return value
@@ -216,7 +216,7 @@ 
Named Years and Mixed calendars

 
In cases where the year would be output, .format() may
   commonly present these side-by-side:

 
-
let df = new Intl.DateTimeFormat("zh-u-ca-chinese", {year: "numeric"});
+
let df = new Intl.DateTimeFormat("zh-u-ca-chinese", {year: "numeric"});
 df.format(Date.UTC(2012, 11, 17, 3, 0, 42));
 
 // return value
@@ -224,7 +224,7 @@ 
Named Years and Mixed calendars

 
 
This also makes it possible to mix locale and calendar in both format:

 
-
let df = new Intl.DateTimeFormat("en-u-ca-chinese", {year: "numeric"});
+
let df = new Intl.DateTimeFormat("en-u-ca-chinese", {year: "numeric"});
 let date = Date.UTC(2012, 11, 17, 3, 0, 42);
 df.format(date);
 
@@ -234,7 +234,7 @@ 
Named Years and Mixed calendars

 
 
And formatToParts:

 
-
let opts = {month: 'numeric', day: 'numeric', year: "numeric"};
+
let opts = {month: 'numeric', day: 'numeric', year: "numeric"};
 let df = new Intl.DateTimeFormat("en-u-ca-chinese", opts);
 let date = Date.UTC(2012, 11, 17, 3);
 df.formatToParts(date)
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/index.html
index bbf14282e5855be..3f7942f05032bb0 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/index.html
@@ -52,7 +52,7 @@ 
Using DateTimeFormat

 
 
In basic use without specifying a locale, DateTimeFormat uses the default locale and default options.

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // toLocaleString without arguments depends on the implementation,
 // the default locale, and the default time zone
@@ -64,7 +64,7 @@ 
Using locales

 
 
This example shows some of the variations in localized date and time formats. In order to get the format of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0));
 
 // Results below use the time zone of America/Los_Angeles (UTC-0800, Pacific Standard Time)
 
@@ -99,7 +99,7 @@ 
Using options

 
 
The date and time formats can be customized using the options argument:

 
-
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0, 200));
+
var date = new Date(Date.UTC(2012, 11, 20, 3, 0, 0, 200));
 
 // request a weekday along with a long date
 var options = { weekday: 'long', year: 'numeric', month: 'long', day: 'numeric' };
@@ -148,7 +148,7 @@ 
Using options

 
 
The used calendar and numbering formats can also be set independently via options arguments:

 
-
var options = {calendar: 'chinese', numberingSystem: 'arab'};
+
var options = {calendar: 'chinese', numberingSystem: 'arab'};
 var dateFormat = new Intl.DateTimeFormat('default', options);
 var usedOptions = dateFormat.resolvedOptions();
 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/resolvedoptions/index.html
index 07d4242f64b9141..087edbee5847d28 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/resolvedoptions/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
dateTimeFormat.resolvedOptions()

+
dateTimeFormat.resolvedOptions()

 
 
Return value

 
@@ -77,7 +77,7 @@ 
Examples

 
 
Using the resolvedOptions method

 
-
var germanFakeRegion = new Intl.DateTimeFormat('de-XX', { timeZone: 'UTC' });
+
var germanFakeRegion = new Intl.DateTimeFormat('de-XX', { timeZone: 'UTC' });
 var usedOptions = germanFakeRegion.resolvedOptions();
 
 usedOptions.locale;          // "de"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/supportedlocalesof/index.html
index 8a07aa5cae68796..6db610e6bc37eca 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/datetimeformat/supportedlocalesof/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
Intl.DateTimeFormat.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.DateTimeFormat.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -73,7 +73,7 @@ 
Using supportedLocalesOf()

 	that Indonesian is an adequate match for Balinese since most Balinese speakers also
 	understand Indonesian, and therefore return the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.DateTimeFormat.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/displaynames/index.html b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/displaynames/index.html
index e9d89a1c31f1225..223cc2bf25fd12e 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/displaynames/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/displaynames/index.html
@@ -22,7 +22,7 @@
 
Syntax

 
 
new Intl.DisplayNames([locales[, options]])

+	class="brush: js">new Intl.DisplayNames([locales[, options]])

 
 
Parameters

 
@@ -94,7 +94,7 @@ 
Basic usage

 
In basic use without specifying a locale, a formatted string in the default locale and
 	with default options is returned.

 
-
console.log((new Intl.DisplayNames([], {type: 'language'})).of('US'));
+
console.log((new Intl.DisplayNames([], {type: 'language'})).of('US'));
 // Expected output: 'us'
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/index.html b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/index.html
index f60a5635f6fddb1..3cea8d492df0530 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/index.html
@@ -46,7 +46,7 @@ 
Region Code Display Names

 
 
To create an Intl.DisplayNames for a locale and get the display name for a region code.

 
-
// Get display names of region in English
+
// Get display names of region in English
 let regionNames = new Intl.DisplayNames(['en'], {type: 'region'});
 regionNames.of('419'); // "Latin America"
 regionNames.of('BZ');  // "Belize"
@@ -66,7 +66,7 @@ 
Language Display Names

 
 
To create an Intl.DisplayNames for a locale and get the display name for a language-script-region sequence.

 
-
// Get display names of language in English
+
// Get display names of language in English
 let languageNames = new Intl.DisplayNames(['en'], {type: 'language'});
 languageNames.of('fr');      // "French"
 languageNames.of('de');      // "German"
@@ -85,7 +85,7 @@ 
Script Code Display Names

 
 
To create an Intl.DisplayNames for a locale and get the display name for a script code.

 
-
// Get display names of script in English
+
// Get display names of script in English
 let scriptNames = new Intl.DisplayNames(['en'], {type: 'script'});
 // Get script names
 scriptNames.of('Latn'); // "Latin"
@@ -102,7 +102,7 @@ 
Currency Code Display Names

 
 
To create an Intl.DisplayNames for a locale and get the display name for currency code.

 
-
// Get display names of currency code in English
+
// Get display names of currency code in English
 let currencyNames = new Intl.DisplayNames(['en'], {type: 'currency'});
 // Get currency names
 currencyNames.of('USD'); // "US Dollar"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/of/index.html b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/of/index.html
index 4995eb0e126100c..2bc4073a635405a 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/of/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/of/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
displayNames.of(code);

+
displayNames.of(code);

 
 
Parameters

 
@@ -60,7 +60,7 @@ 
Examples

 
 
Using the of method

 
-
let regionNames = new Intl.DisplayNames(['en'], {type: 'region'});
+
let regionNames = new Intl.DisplayNames(['en'], {type: 'region'});
 regionNames.of('419'); // "Latin America"
 
 let languageNames = new Intl.DisplayNames(['en'], {type: 'language'});
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/resolvedoptions/index.html
index 6b2554fe06e0050..a4550d930f7a6f9 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/resolvedoptions/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
displayNames.resolvedOptions()

+
displayNames.resolvedOptions()

 
 
Return value

 
@@ -56,7 +56,7 @@ 
Examples

 
 
Using resolvedOptions

 
-
const displayNames = new Intl.DisplayNames(['de-DE'], {type: 'region'});
+
const displayNames = new Intl.DisplayNames(['de-DE'], {type: 'region'});
 
 const usedOptions = displayNames.resolvedOptions();
 console.log(usedOptions.locale);   // "de-DE"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/supportedlocalesof/index.html
index 09ea84a5cbde279..ee26967e5089dca 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/displaynames/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/displaynames/supportedlocalesof/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
Intl.DisplayNames.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.DisplayNames.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -67,7 +67,7 @@ 
Using supportedLocalesOf()

 	Balinese since most Balinese speakers also understand Indonesian, and therefore return
 	the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.DisplayNames.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/getcanonicallocales/index.html b/files/en-us/web/javascript/reference/global_objects/intl/getcanonicallocales/index.html
index 1f6b64cab367581..b5aeadb27bc7b43 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/getcanonicallocales/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/getcanonicallocales/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
Intl.getCanonicalLocales(locales)

+
Intl.getCanonicalLocales(locales)

 
 
Parameters

 
@@ -37,7 +37,7 @@ 
Examples

 
 
Using getCanonicalLocales

 
-
Intl.getCanonicalLocales('EN-US'); // ["en-US"]
+
Intl.getCanonicalLocales('EN-US'); // ["en-US"]
 Intl.getCanonicalLocales(['EN-US', 'Fr']); // ["en-US", "fr"]
 
 Intl.getCanonicalLocales('EN_US');
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/index.html b/files/en-us/web/javascript/reference/global_objects/intl/index.html
index 5107b279e72bdfb..35198ee0b7c7ed1 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/index.html
@@ -112,7 +112,7 @@ 
Formatting dates and numbers

 
 
You can use Intl to format dates and numbers in a form that's conventional for a specific language and region:

 
-
const count = 26254.39;
+
const count = 26254.39;
 const date = new Date("2012-05-24");
 
 function log(locale) {
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/format/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/format/index.html
index 078ee4b0020b194..62518d2b79e40ee 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/format/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/format/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
listFormat.format([list])

+
listFormat.format([list])

 
 
Parameters

 
@@ -49,7 +49,7 @@ 
Using format

 
The following example shows how to create a List formatter using the English language.
 

 
-
const list = ['Motorcycle', 'Bus', 'Car'];
+
const list = ['Motorcycle', 'Bus', 'Car'];
 
  console.log(new Intl.ListFormat('en-GB', { style: 'long', type: 'conjunction' }).format(list));
 // > Motorcycle, Bus and Car
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/formattoparts/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/formattoparts/index.html
index 52506280a6fc88a..502b99835e3e15e 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/formattoparts/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/formattoparts/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
Intl.ListFormat.prototype.formatToParts(list)
+
Intl.ListFormat.prototype.formatToParts(list)
 

 
 
Parameters

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/index.html
index 60f751849075653..ed2f95b7c06e494 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/index.html
@@ -46,7 +46,7 @@ 
Using format

 
 
The following example shows how to create a List formatter using the English language.

 
-
const list = ['Motorcycle', 'Bus', 'Car'];
+
const list = ['Motorcycle', 'Bus', 'Car'];
 
  console.log(new Intl.ListFormat('en-GB', { style: 'long', type: 'conjunction' }).format(list));
 // > Motorcycle, Bus and Car
@@ -62,7 +62,7 @@ 
Using formatToParts

 
 
The following example shows how to create a List formatter returning formatted parts

 
-
const list = ['Motorcycle', 'Bus', 'Car'];
+
const list = ['Motorcycle', 'Bus', 'Car'];
 console.log(new Intl.ListFormat('en-GB', { style: 'long', type: 'conjunction' }).formatToParts(list));
 
 // [ { "type": "element", "value": "Motorcycle" },
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/listformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/listformat/index.html
index 9117509af7799a8..9f9c9f366c9f3a7 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/listformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/listformat/index.html
@@ -21,7 +21,7 @@
 
Syntax

 
 
new Intl.ListFormat([locales[, options]])

+  class="brush: js">new Intl.ListFormat([locales[, options]])

 
 
Parameters

 
@@ -66,7 +66,7 @@ 
Using format

 
The following example shows how to create a List formatter using the English language.
 

 
-
const list = ['Motorcycle', 'Bus', 'Car'];
+
const list = ['Motorcycle', 'Bus', 'Car'];
 
  console.log(new Intl.ListFormat('en-GB', { style: 'long', type: 'conjunction' }).format(list));
 // > Motorcycle, Bus and Car
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/resolvedoptions/index.html
index d5f27e80ae68f58..905c45d5c096205 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/resolvedoptions/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
listFormat.resolvedOptions()

+
listFormat.resolvedOptions()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/listformat/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/listformat/supportedlocalesof/index.html
index 5af64290a0f253d..c168a8b8bfef4c9 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/listformat/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/listformat/supportedlocalesof/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
Intl.ListFormat.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.ListFormat.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -66,7 +66,7 @@ 
Using supportedLocalesOf()

 	adequate match for Balinese since most Balinese speakers also understand Indonesian,
 	and therefore return the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.ListFormat.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/locale/locale/index.html b/files/en-us/web/javascript/reference/global_objects/intl/locale/locale/index.html
index 303d10ad2ff1bc5..2dbdd130785a5c3 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/locale/locale/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/locale/locale/index.html
@@ -21,7 +21,7 @@
 
Syntax

 
 
new Intl.Locale(tag [, options])

+  class="brush: js">new Intl.Locale(tag [, options])

 
 
Parameters

 
@@ -40,7 +40,7 @@ 
Basic usage

 
At its very simplest, the {{jsxref("Locale/Locale", "Intl.Locale")}} constructor takes
   a locale identifier string as its argument:

 
-
let us = new Intl.Locale('en-US');

+
let us = new Intl.Locale('en-US');

 
 
Using the Locale constructor
   with an options object

@@ -51,7 +51,7 @@ 
Using the Locale co
   property of the configuration object to your desired hour cycle type, and then pass it
   into the constructor:

 
-
let us12hour = new Intl.Locale("en-US", {hourCycle: "h12"});
+
let us12hour = new Intl.Locale("en-US", {hourCycle: "h12"});
 console.log(us12hour.hourCycle); // Prints "h12"

 
 
Polyfill

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/locale/maximize/index.html b/files/en-us/web/javascript/reference/global_objects/intl/locale/maximize/index.html
index 7c7fe3b04c50389..e0550aa758ca1a1 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/locale/maximize/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/locale/maximize/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
locale.maximize()

+
locale.maximize()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/locale/minimize/index.html b/files/en-us/web/javascript/reference/global_objects/intl/locale/minimize/index.html
index d59bebd45ec133a..d7393c59097851d 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/locale/minimize/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/locale/minimize/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
locale.minimize()

+
locale.minimize()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/locale/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/intl/locale/tostring/index.html
index e2503b1653cd45a..3914d5533f3301c 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/locale/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/locale/tostring/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
locale.toString()

+
locale.toString()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/format/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/format/index.html
index ad23ce6c968ca87..6134432a1f8d655 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/format/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/format/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
numberFormat.format(number)

+
numberFormat.format(number)

 
 
Parameters

 
@@ -44,7 +44,7 @@ 
Using format

 
Use the format getter function for formatting a single currency value,
 	here for Russia:

 
-
var options = { style: 'currency', currency: 'RUB' };
+
var options = { style: 'currency', currency: 'RUB' };
 var numberFormat = new Intl.NumberFormat('ru-RU', options);
 console.log(numberFormat.format(654321.987));
 // → "654 321,99 руб."
@@ -59,7 +59,7 @@ 
Using format with map

 	for new features, but is preserved to maintain compatibility with existing programs.
 

 
-
var a = [123456.789, 987654.321, 456789.123];
+
var a = [123456.789, 987654.321, 456789.123];
 var numberFormat = new Intl.NumberFormat('es-ES');
 var formatted = a.map(n => numberFormat.format(n));
 console.log(formatted.join('; '));
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/formattoparts/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/formattoparts/index.html
index 3620828006a4046..57d049bcab81b17 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/formattoparts/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/formattoparts/index.html
@@ -20,7 +20,7 @@
 
Syntax

 
 
Intl.NumberFormat.prototype.formatToParts(number)

+	class="brush: js">Intl.NumberFormat.prototype.formatToParts(number)

 
 
Parameters

 
@@ -41,7 +41,7 @@ 
Description

 	locale-specific parts. The structure the formatToParts() method returns,
 	looks like this:

 
-
[
+
[
   { type: "integer", value: "3" },
   { type: "group", value: "." },
   { type: "integer", value: "500" }
@@ -85,7 +85,7 @@ 
Comparing format and formatToPartsNumberFormat outputs localized, opaque strings that cannot be manipulated
 	directly:

 
-
var number = 3500;
+
var number = 3500;
 
 var formatter = new Intl.NumberFormat('de-DE', {
   style: 'currency',
@@ -101,7 +101,7 @@ 
Comparing format and formatToPartsNumberFormat formatters by providing you the string
 	in parts:

 
-
formatter.formatToParts(number);
+
formatter.formatToParts(number);
 
 // return value:
 [
@@ -124,7 +124,7 @@ 
Comparing format and formatToPartstemplate
 		literals, and {{jsxref("Array.prototype.reduce()")}}.

 
-
var numberString = formatter.formatToParts(number).map(({type, value}) => {
+
var numberString = formatter.formatToParts(number).map(({type, value}) => {
   switch (type) {
     case 'currency': return `<strong>${value}</strong>`;
     default : return value;
@@ -135,7 +135,7 @@ 
Comparing format and formatToPartsThis will make the currency bold, when using the formatToParts() method.
 

 
-
console.log(numberString);
+
console.log(numberString);
 // "3.500,00 <strong>€</strong>"

 
 
Specifications

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/index.html
index 32cd39aee159094..761141d25477974 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/index.html
@@ -48,7 +48,7 @@ 
Basic usage

 
 
In basic use without specifying a locale, a formatted string in the default locale and with default options is returned.

 
-
var number = 3500;
+
var number = 3500;
 
 console.log(new Intl.NumberFormat().format(number));
 // → '3,500' if in US English locale
@@ -58,7 +58,7 @@ 
Using locales

 
 
This example shows some of the variations in localized number formats. In order to get the format of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument:

 
-
var number = 123456.789;
+
var number = 123456.789;
 
 // German uses comma as decimal separator and period for thousands
 console.log(new Intl.NumberFormat('de-DE').format(number));
@@ -86,7 +86,7 @@ 
Using options

 
 
The results can be customized using the options argument:

 
-
var number = 123456.789;
+
var number = 123456.789;
 
 // request a currency format
 console.log(new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(number));
@@ -103,7 +103,7 @@ 
Using options

 
 
Using style and unit

 
-
console.log(new Intl.NumberFormat("pt-PT",  {
+
console.log(new Intl.NumberFormat("pt-PT",  {
     style: 'unit',
     unit: "mile-per-hour"
 }).format(50));
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/numberformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/numberformat/index.html
index 4749e147ac7d8f4..46279c1e68e3c8e 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/numberformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/numberformat/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
new Intl.NumberFormat([locales[, options]])
+
new Intl.NumberFormat([locales[, options]])
 

 
 
Parameters

@@ -220,14 +220,14 @@ 
Basic usage

 
In basic use without specifying a locale, a formatted string in the default locale and
 	with default options is returned.

 
-
let amount = 3500;
+
let amount = 3500;
 
 console.log(new Intl.NumberFormat().format(amount));
 // → '3,500' if in US English locale

 
 
Decimal and percent formatting

 
-
let amount = 3500;
+
let amount = 3500;
 
 new Intl.NumberFormat('en-US', {style: 'decimal'}).format(amount);
 // → '3,500'
@@ -240,7 +240,7 @@ 
Unit formatting

 
If the style is 'unit', a unit property must be
 	provided. Optionally, unitDisplay controls the unit formatting.

 
-
let amount = 3500;
+
let amount = 3500;
 
 new Intl.NumberFormat('en-US', {style: 'unit', unit: 'liter'}).format(amount);
 // → '3,500 L'
@@ -255,7 +255,7 @@ 
Currency formatting

 	must be provided. Optionally, currencyDisplay and
 	currencySign control the unit formatting.

 
-
let amount = -3500;
+
let amount = -3500;
 new Intl.NumberFormat('en-US', {style: 'currency', currency: 'USD'}).format(amount);
 // → '-$3,500.00'
 
@@ -280,7 +280,7 @@ 
Scientific, engineering or
 
Scientific and compact notation are represented by the notation option and
 	can be formatted like this:

 
-
new Intl.NumberFormat('en-US', { notation: "scientific" }).format(987654321);
+
new Intl.NumberFormat('en-US', { notation: "scientific" }).format(987654321);
 // → 9.877E8
 
 new Intl.NumberFormat('pt-PT', { notation: "scientific" }).format(987654321);
@@ -311,7 +311,7 @@ 
Displaying signs

 
 
Display a sign for positive and negative numbers, but not zero:

 
-
new Intl.NumberFormat("en-US", {
+
new Intl.NumberFormat("en-US", {
     style: "percent",
     signDisplay: "exceptZero"
 }).format(0.55);
@@ -320,7 +320,7 @@ 
Displaying signs

 
Note that when the currency sign is "accounting", parentheses might be used instead of
 	a minus sign:

 
-
new Intl.NumberFormat('bn', {
+
new Intl.NumberFormat('bn', {
   style: 'currency',
   currency: 'USD',
   currencySign: 'accounting',
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/resolvedoptions/index.html
index f79ec5a914769f8..78c24ec3bc43773 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/resolvedoptions/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
numberFormat.resolvedOptions()

+
numberFormat.resolvedOptions()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/supportedlocalesof/index.html
index 500544cd7c4ca4a..7a9c0bc5cc499df 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/numberformat/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/numberformat/supportedlocalesof/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
Intl.NumberFormat.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.NumberFormat.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -72,7 +72,7 @@ 
Using supportedLocalesOf()

 	adequate match for Balinese since most Balinese speakers also understand Indonesian,
 	and therefore return the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.NumberFormat.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/index.html b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/index.html
index da1ffec0cd35a75..80b23481db592ba 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/index.html
@@ -43,7 +43,7 @@ 
Using locales

 
 
This example shows some of the variations in localized plural rules. In order to get the format of the language used in the user interface of your application, make sure to specify that language (and possibly some fallback languages) using the locales argument:

 
-
// Arabic has different plural rules
+
// Arabic has different plural rules
 
 new Intl.PluralRules('ar-EG').select(0);
 // → 'zero'
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/pluralrules/index.html b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/pluralrules/index.html
index 6fbbea34c9be3e0..1ae350bb461d2a8 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/pluralrules/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/pluralrules/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
new Intl.PluralRules([locales[, options]])
+
new Intl.PluralRules([locales[, options]])
 

 
 
Parameters

diff --git a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/resolvedoptions/index.html
index 06e2d3c5846f984..93fb0fb4cea9b50 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/resolvedoptions/index.html
@@ -19,7 +19,7 @@
 
 
Syntax

 
-
pluralRule.resolvedOptions()

+
pluralRule.resolvedOptions()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/select/index.html b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/select/index.html
index 4d058bfe1401aeb..bed02ef003ed5a7 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/select/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/select/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
pluralCategory = pluralRule.select(number)

+	class="brush: js">pluralCategory = pluralRule.select(number)

 
 
Parameters

 
@@ -43,7 +43,7 @@ 
Examples

 
 
Using select()

 
-
 new Intl.PluralRules('ar-EG').select(0);
+
 new Intl.PluralRules('ar-EG').select(0);
 // → 'zero'
 
 new Intl.PluralRules('ar-EG').select(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/supportedlocalesof/index.html
index 9ef6c575ba47bea..d8a941329f12597 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/pluralrules/supportedlocalesof/index.html
@@ -19,7 +19,7 @@
 
Syntax

 
 
Intl.PluralRules.supportedLocalesOf(locales[, options])

+	class="brush: js">Intl.PluralRules.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -67,7 +67,7 @@ 
Using supportedLocalesOf()

 	adequate match for Balinese since most Balinese speakers also understand Indonesian,
 	and therefore return the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.PluralRules.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/format/index.html b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/format/index.html
index 3437c61c2709c47..58203462c3016ba 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/format/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/format/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
relativeTimeFormat.format(value, unit)

+
relativeTimeFormat.format(value, unit)

 
 
Parameters

 
@@ -41,7 +41,7 @@ 
Basic format usage

 
 
The following example shows how to create a relative time formatter using the English language.

 
-
// Create a relative time formatter in your locale
+
// Create a relative time formatter in your locale
 // with default values explicitly passed in.
 const rtf = new Intl.RelativeTimeFormat("en", {
     localeMatcher: "best fit", // other values: "lookup"
@@ -61,7 +61,7 @@ 
Using the auto option

 
 
If numeric:auto option is passed, it will produce the string yesterday or tomorrow instead of 1 day ago or in 1 day. This allows to not always have to use numeric values in the output.

 
-
// Create a relative time formatter in your locale
+
// Create a relative time formatter in your locale
 // with numeric: "auto" option value passed in.
 const rtf = new Intl.RelativeTimeFormat("en", { numeric: "auto" });
 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/index.html
index 6d43fa521e7c428..81050fa0cdc058c 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/index.html
@@ -48,7 +48,7 @@ 
Basic format usage

 
 
The following example shows how to use a relative time formatter for the English language.

 
-
// Create a relative time formatter in your locale
+
// Create a relative time formatter in your locale
 // with default values explicitly passed in.
 const rtf = new Intl.RelativeTimeFormat("en", {
     localeMatcher: "best fit", // other values: "lookup"
@@ -68,7 +68,7 @@ 
Using formatToParts

 
 
The following example shows how to create a relative time formatter returning formatted parts

 
-
const rtf = new Intl.RelativeTimeFormat("en", { numeric: "auto" });
+
const rtf = new Intl.RelativeTimeFormat("en", { numeric: "auto" });
 
 // Format relative time using the day unit.
 rtf.formatToParts(-1, "day");
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/relativetimeformat/index.html b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/relativetimeformat/index.html
index d92b8d9f236b107..8c0ffd45dd6f437 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/relativetimeformat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/relativetimeformat/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
new Intl.RelativeTimeFormat([locales[, options]])

+
new Intl.RelativeTimeFormat([locales[, options]])

 
 
Parameters

 
@@ -60,7 +60,7 @@ 
Basic format usage

 
 
The following example shows how to create a relative time formatter using the English language.

 
-
// Create a relative time formatter in your locale
+
// Create a relative time formatter in your locale
 // with default values explicitly passed in.
 const rtf = new Intl.RelativeTimeFormat("en", {
     localeMatcher: "best fit", // other values: "lookup"
@@ -80,7 +80,7 @@ 
Using the auto option

 
 
If numeric:auto option is passed, it will produce the string yesterday or tomorrow instead of 1 day ago or in 1 day. This allows to not always have to use numeric values in the output.

 
-
// Create a relative time formatter in your locale
+
// Create a relative time formatter in your locale
 // with numeric: "auto" option value passed in.
 const rtf = new Intl.RelativeTimeFormat("en", { numeric: "auto" });
 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/resolvedoptions/index.html b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/resolvedoptions/index.html
index 4aebc8454858624..17ab4eabcaf3dc6 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/resolvedoptions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/resolvedoptions/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
relativeTimeFormat.resolvedOptions()

+
relativeTimeFormat.resolvedOptions()

 
 
Return value

 
diff --git a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/supportedlocalesof/index.html b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/supportedlocalesof/index.html
index 031bb72e3a4fb30..e718ced7c0b1677 100644
--- a/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/supportedlocalesof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/intl/relativetimeformat/supportedlocalesof/index.html
@@ -20,7 +20,7 @@
 
 
Syntax

 
-
Intl.RelativeTimeFormat.supportedLocalesOf(locales[, options])

+
Intl.RelativeTimeFormat.supportedLocalesOf(locales[, options])

 
 
Parameters

 
@@ -52,7 +52,7 @@ 
Using supportedLocalesOf()

 
 
Assuming a runtime that supports Indonesian and German but not Balinese in date and time formatting, supportedLocalesOf returns the Indonesian and German language tags unchanged, even though pinyin collation is neither relevant to date and time formatting nor used with Indonesian, and a specialized German for Indonesia is unlikely to be supported. Note the specification of the "lookup" algorithm here — a "best fit" matcher might decide that Indonesian is an adequate match for Balinese since most Balinese speakers also understand Indonesian, and therefore return the Balinese language tag as well.

 
-
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
+
const locales = ['ban', 'id-u-co-pinyin', 'de-ID'];
 const options = { localeMatcher: 'lookup' };
 console.log(Intl.RelativeTimeFormat.supportedLocalesOf(locales, options).join(', '));
 // → "id-u-co-pinyin, de-ID"
diff --git a/files/en-us/web/javascript/reference/global_objects/isfinite/index.html b/files/en-us/web/javascript/reference/global_objects/isfinite/index.html
index 377c2fa5a2c8263..22c0a686fc14706 100644
--- a/files/en-us/web/javascript/reference/global_objects/isfinite/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/isfinite/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
isFinite(testValue)

+
isFinite(testValue)

 
 
Parameters

 
@@ -52,7 +52,7 @@ 
Examples

 
 
Using isFinite

 
-
isFinite(Infinity);  // false
+
isFinite(Infinity);  // false
 isFinite(NaN);       // false
 isFinite(-Infinity); // false
 
diff --git a/files/en-us/web/javascript/reference/global_objects/isnan/index.html b/files/en-us/web/javascript/reference/global_objects/isnan/index.html
index cbdaf7c79e761f9..80bd80c7b432157 100644
--- a/files/en-us/web/javascript/reference/global_objects/isnan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/isnan/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
isNaN(value)

+
isNaN(value)

 
 
Parameters

 
@@ -79,14 +79,14 @@ 
Confusing special-case behavior

 
A polyfill for isNaN would be (the polyfill leverages the unique
   never-equal-to-itself characteristic of NaN):

 
-
var isNaN = function(value) {
+
var isNaN = function(value) {
     var n = Number(value);
     return n !== n;
 };

 
 
Examples

 
-
isNaN(NaN);       // true
+
isNaN(NaN);       // true
 isNaN(undefined); // true
 isNaN({});        // true
 
diff --git a/files/en-us/web/javascript/reference/global_objects/json/index.html b/files/en-us/web/javascript/reference/global_objects/json/index.html
index 90412d9a4da2d5a..52af31003906fc0 100644
--- a/files/en-us/web/javascript/reference/global_objects/json/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/json/index.html
@@ -44,7 +44,7 @@ 
JavaScript and JSON differences

 
Consider this example where {{jsxref("JSON.parse()")}} parses the string as JSON and
   {{jsxref("eval")}} executes the string as JavaScript:

 
-
let code = '"\u2028\u2029"'
+
let code = '"\u2028\u2029"'
 JSON.parse(code)  // evaluates to "\u2028\u2029" in all engines
 eval(code)        // throws a SyntaxError in old engines
 

@@ -59,7 +59,7 @@ 
Full JSON syntax

 
 
The full JSON syntax is as follows:

 
-
JSON = null
+
JSON = null
     or true or false
     or JSONNumber
     or JSONString
@@ -141,7 +141,7 @@ 
Examples

 
 
Example JSON

 
-
{
+
{
   "browsers": {
     "firefox": {
       "name": "Firefox",
diff --git a/files/en-us/web/javascript/reference/global_objects/json/parse/index.html b/files/en-us/web/javascript/reference/global_objects/json/parse/index.html
index 56ffbb21967724b..cbd716d595993ba 100644
--- a/files/en-us/web/javascript/reference/global_objects/json/parse/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/json/parse/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
JSON.parse(text[, reviver])

+
JSON.parse(text[, reviver])

 
 
Parameters

 
@@ -50,7 +50,7 @@ 
Exceptions

 
 
Polyfill

 
-
// From https://github.com/douglascrockford/JSON-js/blob/master/json2.js
+
// From https://github.com/douglascrockford/JSON-js/blob/master/json2.js
 if (typeof JSON.parse !== "function") {
     var rx_one = /^[\],:{}\s]*$/;
     var rx_two = /\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g;
@@ -151,7 +151,7 @@ 
Examples

 
 
Using JSON.parse()

 
-
JSON.parse('{}');              // {}
+
JSON.parse('{}');              // {}
 JSON.parse('true');            // true
 JSON.parse('"foo"');           // "foo"
 JSON.parse('[1, 5, "false"]'); // [1, 5, "false"]
@@ -175,7 +175,7 @@ 
Using the reviver parameter

   certain to return all untransformed values as-is, otherwise, they will be deleted from
   the resulting object.

 
-
JSON.parse('{"p": 5}', (key, value) =>
+
JSON.parse('{"p": 5}', (key, value) =>
   typeof value === 'number'
     ? value * 2 // return value * 2 for numbers
     : value     // return everything else unchanged
@@ -200,7 +200,7 @@ 
Using the reviver parameter

 
JSON.parse() does not allow trailing
   commas

 
-
// both will throw a SyntaxError
+
// both will throw a SyntaxError
 JSON.parse('[1, 2, 3, 4, ]');
 JSON.parse('{"foo" : 1, }');
 

@@ -208,7 +208,7 @@ 
JSON.parse() does not allow t
 
JSON.parse() does not allow single quotes
 

 
-
// will throw a SyntaxError
+
// will throw a SyntaxError
 JSON.parse("{'foo': 1}");
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/json/stringify/index.html b/files/en-us/web/javascript/reference/global_objects/json/stringify/index.html
index f42c51498ea888e..95c9662c803aa8a 100644
--- a/files/en-us/web/javascript/reference/global_objects/json/stringify/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/json/stringify/index.html
@@ -21,7 +21,7 @@
 
Syntax

 
 
JSON.stringify(value[, replacer[, space]])

+  class="brush: js">JSON.stringify(value[, replacer[, space]])

 
 
Parameters

 
@@ -92,7 +92,7 @@ 
Examples

 
 
Using JSON.stringify

 
-
JSON.stringify({});                    // '{}'
+
JSON.stringify({});                    // '{}'
 JSON.stringify(true);                  // 'true'
 JSON.stringify('foo');                 // '"foo"'
 JSON.stringify([1, 'false', false]);   // '[1,"false",false]'
@@ -196,7 +196,7 @@ 
The replacer parameter

 
 
Example replacer, as a function

 
-
function replacer(key, value) {
+
function replacer(key, value) {
   // Filtering out properties
   if (typeof value === 'string') {
     return undefined;
@@ -215,7 +215,7 @@ 
Example replacer, as an array
 
-
JSON.stringify(foo, ['week', 'month']);
+
JSON.stringify(foo, ['week', 'month']);
 // '{"week":45,"month":7}', only keep "week" and "month" properties
 

 
@@ -230,7 +230,7 @@ 
The space argument

     string (or the first ten characters of it).
 
 
-
JSON.stringify({ a: 2 }, null, ' ');
+
JSON.stringify({ a: 2 }, null, ' ');
 // '{
 //  "a": 2
 // }'
@@ -238,7 +238,7 @@ 
The space argument

 
 
Using a tab character mimics standard pretty-print appearance:

 
-
JSON.stringify({ uno: 1, dos: 2 }, null, '\t');
+
JSON.stringify({ uno: 1, dos: 2 }, null, '\t');
 // returns the string:
 // '{
 //     "uno": 1,
@@ -263,7 +263,7 @@ 
toJSON() behavior

 
 
For example:

 
-
var obj = {
+
var obj = {
     data: 'data',
 
     toJSON (key) {
@@ -293,7 +293,7 @@ 
Issue wi
     exists), a {{JSxRef("TypeError")}} will be thrown if one attempts to encode an
   object with circular references.

 
-
const circularReference = {};
+
const circularReference = {};
 circularReference.myself = circularReference;
 
 // Serializing circular references throws "TypeError: cyclic object value"
@@ -323,7 +323,7 @@ 
Issue with plain
   part of a JSONP URL, and the following
   utility can be used:

 
-
function jsFriendlyJSONStringify (s) {
+
function jsFriendlyJSONStringify (s) {
     return JSON.stringify(s).
         replace(/\u2028/g, '\\u2028').
         replace(/\u2029/g, '\\u2029');
@@ -353,7 +353,7 @@ 
Issue with plain
     same object within the stringification.

 
 
-
var a = JSON.stringify({ foo: "bar", baz: "quux" })
+
var a = JSON.stringify({ foo: "bar", baz: "quux" })
 //'{"foo":"bar","baz":"quux"}'
 var b = JSON.stringify({ baz: "quux", foo: "bar" })
 //'{"baz":"quux","foo":"bar"}'
@@ -370,7 +370,7 @@ 
Example of using
   restored even after the browser has been closed, the following example is a model for
   the applicability of JSON.stringify():

 
-
// Creating an example of JSON
+
// Creating an example of JSON
 var session = {
   'screens': [],
   'state': true
@@ -405,13 +405,13 @@ 
Well-formed JSON.stringify()

   any lone surrogates; such strings could not be encoded in valid UTF-8 or UTF-16:

 
 
JSON.stringify("\uD800"); // '"�"'

+  class="brush: js no-line-numbers">JSON.stringify("\uD800"); // '"�"'

 
 
But with this change JSON.stringify represents lone surrogates using JSON
   escape sequences that can be encoded in valid UTF-8 or UTF-16:

 
 
JSON.stringify("\uD800"); // '"\\ud800"'

+  class="brush: js no-line-numbers">JSON.stringify("\uD800"); // '"\\ud800"'

 
 
This change should be backwards-compatible as long as you pass the result of
   JSON.stringify to APIs such as JSON.parse that will accept any
diff --git a/files/en-us/web/javascript/reference/global_objects/map/@@iterator/index.html b/files/en-us/web/javascript/reference/global_objects/map/@@iterator/index.html
index 94af501eee80658..de6f8ded4e817f0 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/@@iterator/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/@@iterator/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
myMap[Symbol.iterator]

+
myMap[Symbol.iterator]

 
 
Return value

 
@@ -37,7 +37,7 @@ 
Examples

 
 
Using [@@iterator]()

 
-
const myMap = new Map()
+
const myMap = new Map()
 myMap.set('0', 'foo')
 myMap.set(1, 'bar')
 myMap.set({}, 'baz')
@@ -51,7 +51,7 @@ 
Using [@@iterator]()

 
 
Using [@@iterator]() with for..of

 
-
const myMap = new Map()
+
const myMap = new Map()
 myMap.set('0', 'foo')
 myMap.set(1, 'bar')
 myMap.set({}, 'baz')
diff --git a/files/en-us/web/javascript/reference/global_objects/map/@@species/index.html b/files/en-us/web/javascript/reference/global_objects/map/@@species/index.html
index e6d2eec465f5aa1..0341e8a09f19b5a 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/@@species/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/@@species/index.html
@@ -21,13 +21,13 @@ 
Species in ordinary objects

 
 
The species property returns the default constructor function, which is the Map constructor for Map objects:

 
-
Map[Symbol.species]; // function Map()

+
Map[Symbol.species]; // function Map()

 
 
Species in derived objects

 
 
In a derived collection object (e.g. your custom map MyMap), the MyMap species is the MyMap constructor. However, you might want to overwrite this, in order to return parent Map objects in your derived class methods:

 
-
class MyMap extends Map {
+
class MyMap extends Map {
   // Overwrite MyMap species to the parent Map constructor
   static get [Symbol.species]() { return Map; }
 }

diff --git a/files/en-us/web/javascript/reference/global_objects/map/@@tostringtag/index.html b/files/en-us/web/javascript/reference/global_objects/map/@@tostringtag/index.html
index 7f2fca07a40f267..a5e37524462f7b5 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/@@tostringtag/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/@@tostringtag/index.html
@@ -27,7 +27,7 @@
 
 
Syntax

 
-
Map[Symbol.toStringTag]

+
Map[Symbol.toStringTag]

 
 
Examples

 
diff --git a/files/en-us/web/javascript/reference/global_objects/map/clear/index.html b/files/en-us/web/javascript/reference/global_objects/map/clear/index.html
index bee18cc86d72259..7fa411012cbecf3 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/clear/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/clear/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
myMap.clear();
+
myMap.clear();
 

 
 
Return value

@@ -35,7 +35,7 @@ 
Examples

 
 
Using clear()

 
-
var myMap = new Map();
+
var myMap = new Map();
 myMap.set('bar', 'baz');
 myMap.set(1, 'foo');
 
diff --git a/files/en-us/web/javascript/reference/global_objects/map/delete/index.html b/files/en-us/web/javascript/reference/global_objects/map/delete/index.html
index ae7d6f0fdb7001a..a13cfb92ccd48de 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/delete/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/delete/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
myMap.delete(key);

+
myMap.delete(key);

 
 
Parameters

 
@@ -42,7 +42,7 @@ 
Examples

 
 
Using delete()

 
-
var myMap = new Map();
+
var myMap = new Map();
 myMap.set('bar', 'foo');
 
 myMap.delete('bar'); // Returns true. Successfully removed.
diff --git a/files/en-us/web/javascript/reference/global_objects/map/entries/index.html b/files/en-us/web/javascript/reference/global_objects/map/entries/index.html
index 7c8c8be6e5c234b..0577b8364055e24 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/entries/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/entries/index.html
@@ -28,7 +28,7 @@
 
 
Syntax

 
-
myMap.entries()

+
myMap.entries()

 
 
Return value

 
@@ -38,7 +38,7 @@ 
Examples

 
 
Using entries()

 
-
let myMap = new Map()
+
let myMap = new Map()
 myMap.set('0', 'foo')
 myMap.set(1, 'bar')
 myMap.set({}, 'baz')
diff --git a/files/en-us/web/javascript/reference/global_objects/map/foreach/index.html b/files/en-us/web/javascript/reference/global_objects/map/foreach/index.html
index 756b39a94c788f5..30457c4b4fa2141 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/foreach/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/foreach/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
myMap.forEach(callback([value][, key][, map])[, thisArg])

+  class="brush: js">myMap.forEach(callback([value][, key][, map])[, thisArg])

 
 
Parameters

 
@@ -89,7 +89,7 @@ 
Printing the contents of a Map ob
 
 
The following code logs a line for each element in an Map object:

 
-
function logMapElements(value, key, map) {
+
function logMapElements(value, key, map) {
     console.log(`map.get('${key}') = ${value}`)
 }
 new Map([['foo', 3], ['bar', {}], ['baz', undefined]]).forEach(logMapElements)
diff --git a/files/en-us/web/javascript/reference/global_objects/map/get/index.html b/files/en-us/web/javascript/reference/global_objects/map/get/index.html
index 3839acf3d72abe4..2b26fcd51f0ef60 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/get/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/get/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
myMap.get(key)

+
myMap.get(key)

 
 
Parameters

 
@@ -44,7 +44,7 @@ 
Examples

 
 
Using get()

 
-
let myMap = new Map();
+
let myMap = new Map();
 myMap.set('bar', 'foo');
 
 myMap.get('bar');   // Returns "foo"
diff --git a/files/en-us/web/javascript/reference/global_objects/map/has/index.html b/files/en-us/web/javascript/reference/global_objects/map/has/index.html
index 6dabead83616512..99699185cf1cbc1 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/has/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/has/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
myMap.has(key)

+
myMap.has(key)

 
 
Parameters

 
@@ -42,7 +42,7 @@ 
Examples

 
 
Using has()

 
-
let myMap = new Map()
+
let myMap = new Map()
 myMap.set('bar', "foo")
 
 myMap.has('bar')   // returns true
diff --git a/files/en-us/web/javascript/reference/global_objects/map/index.html b/files/en-us/web/javascript/reference/global_objects/map/index.html
index ba8bbcd0aa02cfd..12a2de2fc6c3848 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/index.html
@@ -160,7 +160,7 @@ 
Setting object properties

 
 
Therefore, this appears to work in a way:

 
-
let wrongMap = new Map()
+
let wrongMap = new Map()
 wrongMap['bla'] = 'blaa'
 wrongMap['bla2'] = 'blaaa2'
 
@@ -171,14 +171,14 @@ 
Setting object properties

   uses the feature of the generic object. The value of 'bla' is not stored in the Map for
   queries. Other operations on the data fail:

 
-
wrongMap.has('bla')    // false
+
wrongMap.has('bla')    // false
 wrongMap.delete('bla') // false
 console.log(wrongMap)  // Map { bla: 'blaa', bla2: 'blaaa2' }

 
 
The correct usage for storing data in the Map is through the
   set(key, value) method.

 
-
let contacts = new Map()
+
let contacts = new Map()
 contacts.set('Jessie', {phone: "213-555-1234", address: "123 N 1st Ave"})
 contacts.has('Jessie') // true
 contacts.get('Hilary') // undefined
@@ -261,7 +261,7 @@ 
Examples

 
 
Using the Map object

 
-
let myMap = new Map()
+
let myMap = new Map()
 
 let keyString = 'a string'
 let keyObj    = {}
@@ -291,7 +291,7 @@ 
Using NaN as Map keys

   equal to itself (NaN !== NaN is true), the following example works because
   NaNs are indistinguishable from each other:

 
-
let myMap = new Map()
+
let myMap = new Map()
 myMap.set(NaN, 'not a number')
 
 myMap.get(NaN)
@@ -306,7 +306,7 @@ 
Iterating Map with for..of

 
 
Maps can be iterated using a for..of loop:

 
-
let myMap = new Map()
+
let myMap = new Map()
 myMap.set(0, 'zero')
 myMap.set(1, 'one')
 
@@ -340,7 +340,7 @@ 
Iterating Map with forEach()

 
Maps can be iterated using the {{jsxref("Map.prototype.forEach", "forEach()")}} method:
 

 
-
myMap.forEach(function(value, key) {
+
myMap.forEach(function(value, key) {
   console.log(key + ' = ' + value)
 })
 // 0 = zero
@@ -349,7 +349,7 @@ 
Iterating Map with forEach()

 
 
Relation with Array objects

 
-
let kvArray = [['key1', 'value1'], ['key2', 'value2']]
+
let kvArray = [['key1', 'value1'], ['key2', 'value2']]
 
 // Use the regular Map constructor to transform a 2D key-value Array into a map
 let myMap = new Map(kvArray)
@@ -370,7 +370,7 @@ 
Cloning and merging Maps

 
 
Just like Arrays, Maps can be cloned:

 
-
let original = new Map([
+
let original = new Map([
   [1, 'one']
 ])
 
@@ -386,7 +386,7 @@ 
Cloning and merging Maps

 
 
Maps can be merged, maintaining key uniqueness:

 
-
let first = new Map([
+
let first = new Map([
   [1, 'one'],
   [2, 'two'],
   [3, 'three'],
@@ -407,7 +407,7 @@ 
Cloning and merging Maps

 
 
Maps can be merged with Arrays, too:

 
-
let first = new Map([
+
let first = new Map([
   [1, 'one'],
   [2, 'two'],
   [3, 'three'],
diff --git a/files/en-us/web/javascript/reference/global_objects/map/keys/index.html b/files/en-us/web/javascript/reference/global_objects/map/keys/index.html
index 8e17e0c5341ea5c..f957f33fdf9479b 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/keys/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/keys/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
myMap.keys()

+
myMap.keys()

 
 
Return value

 
@@ -36,7 +36,7 @@ 
Examples

 
 
Using keys()

 
-
var myMap = new Map();
+
var myMap = new Map();
 myMap.set('0', 'foo');
 myMap.set(1, 'bar');
 myMap.set({}, 'baz');
diff --git a/files/en-us/web/javascript/reference/global_objects/map/map/index.html b/files/en-us/web/javascript/reference/global_objects/map/map/index.html
index e3446f44d3e5042..8cdbe85c5f64fb4 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/map/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/map/index.html
@@ -14,7 +14,7 @@
 
 
Syntax

 
-
new Map([iterable])

+
new Map([iterable])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/map/set/index.html b/files/en-us/web/javascript/reference/global_objects/map/set/index.html
index 7c2346e26ae8095..a45aedc6daebe0f 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/set/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/set/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
myMap.set(key, value)

+  class="brush: js">myMap.set(key, value)

 
 
Parameters

 
@@ -44,7 +44,7 @@ 
Examples

 
 
Using set()

 
-
let myMap = new Map()
+
let myMap = new Map()
 
 // Add new elements to the map
 myMap.set('bar', 'foo')
@@ -59,7 +59,7 @@ 
Using the set() with chaining

 
Since the set() method returns back the same Map object, you
   can chain the method call like below:

 
-
// Add new elements to the map with chaining.
+
// Add new elements to the map with chaining.
 myMap.set('bar', 'foo')
      .set(1, 'foobar')
      .set(2, 'baz');
diff --git a/files/en-us/web/javascript/reference/global_objects/map/size/index.html b/files/en-us/web/javascript/reference/global_objects/map/size/index.html
index 3e32ec87c8160bf..d0278ca32dc7b3a 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/size/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/size/index.html
@@ -23,7 +23,7 @@ 
Examples

 
 
Using size

 
-
var myMap = new Map();
+
var myMap = new Map();
 myMap.set('a', 'alpha');
 myMap.set('b', 'beta');
 myMap.set('g', 'gamma');
diff --git a/files/en-us/web/javascript/reference/global_objects/map/values/index.html b/files/en-us/web/javascript/reference/global_objects/map/values/index.html
index 542dac5de3262bd..cfb945328ede43c 100644
--- a/files/en-us/web/javascript/reference/global_objects/map/values/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/map/values/index.html
@@ -26,7 +26,7 @@
 
 
Syntax

 
-
myMap.values()

+
myMap.values()

 
 
Return value

 
@@ -36,7 +36,7 @@ 
Examples

 
 
Using values()

 
-
var myMap = new Map();
+
var myMap = new Map();
 myMap.set('0', 'foo');
 myMap.set(1, 'bar');
 myMap.set({}, 'baz');
diff --git a/files/en-us/web/javascript/reference/global_objects/math/abs/index.html b/files/en-us/web/javascript/reference/global_objects/math/abs/index.html
index fad6a1a04fc03c6..5458f6a2171b1ee 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/abs/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/abs/index.html
@@ -89,7 +89,7 @@
 
 
Syntax

 
-
Math.abs(x)

+
Math.abs(x)

 
 
Parameters

 
@@ -116,7 +116,7 @@ 
Behavior of Math.abs()

   {{jsxref("undefined")}}/empty variable returns {{jsxref("NaN")}}. Passing
   {{jsxref("null")}}, an empty string or an empty array returns 0.

 
-
Math.abs('-1');     // 1
+
Math.abs('-1');     // 1
 Math.abs(-2);       // 2
 Math.abs(null);     // 0
 Math.abs('');       // 0
diff --git a/files/en-us/web/javascript/reference/global_objects/math/acos/index.html b/files/en-us/web/javascript/reference/global_objects/math/acos/index.html
index 5300a2f47278e85..4083766cf784b50 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/acos/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/acos/index.html
@@ -77,7 +77,7 @@
 
 
Syntax

 
-
Math.acos(x)

+
Math.acos(x)

 
 
Parameters

 
@@ -106,7 +106,7 @@ 
Examples

 
 
Using Math.acos()

 
-
Math.acos(-2);  // NaN
+
Math.acos(-2);  // NaN
 Math.acos(-1);  // 3.141592653589793
 Math.acos(0);   // 1.5707963267948966
 Math.acos(0.5); // 1.0471975511965979
diff --git a/files/en-us/web/javascript/reference/global_objects/math/acosh/index.html b/files/en-us/web/javascript/reference/global_objects/math/acosh/index.html
index afb5b867871fe2f..ac3d19ff490182c 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/acosh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/acosh/index.html
@@ -65,7 +65,7 @@
 
 
Syntax

 
-
Math.acosh(x)

+
Math.acosh(x)

 
 
Parameters

 
@@ -89,7 +89,7 @@ 
Examples

 
 
Using Math.acosh()

 
-
Math.acosh(-1);  // NaN
+
Math.acosh(-1);  // NaN
 Math.acosh(0);   // NaN
 Math.acosh(0.5); // NaN
 Math.acosh(1);   // 0
@@ -142,7 +142,7 @@ 
Polyfill

     
    and so this can be emulated with the following function:

 
-
Math.acosh = Math.acosh || function(x) {
+
Math.acosh = Math.acosh || function(x) {
   return Math.log(x + Math.sqrt(x * x - 1));
 };
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/asin/index.html b/files/en-us/web/javascript/reference/global_objects/math/asin/index.html
index 3f7bedea1e87109..493022dda88a778 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/asin/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/asin/index.html
@@ -89,7 +89,7 @@
 
 
Syntax

 
-
Math.asin(x)

+
Math.asin(x)

 
 
Parameters

 
@@ -135,7 +135,7 @@ 
Examples

 
 
Using Math.asin()

 
-
Math.asin(-2);  // NaN
+
Math.asin(-2);  // NaN
 Math.asin(-1);  // -1.5707963267948966 (-pi/2)
 Math.asin(0);   // 0
 Math.asin(0.5); // 0.5235987755982989
diff --git a/files/en-us/web/javascript/reference/global_objects/math/asinh/index.html b/files/en-us/web/javascript/reference/global_objects/math/asinh/index.html
index b888361ad5be8dd..ea20380e6aa689f 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/asinh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/asinh/index.html
@@ -58,7 +58,7 @@
 
 
Syntax

 
-
Math.asinh(x)

+
Math.asinh(x)

 
 
Parameters

 
@@ -81,7 +81,7 @@ 
Examples

 
 
Using Math.asinh()

 
-
Math.asinh(1);  // 0.881373587019543
+
Math.asinh(1);  // 0.881373587019543
 Math.asinh(0);  // 0
 

 
@@ -89,7 +89,7 @@ 
Polyfill

 
 
Math.asinh can be emulated with the following function:

 
-
if (!Math.asinh) Math.asinh = function(x) {
+
if (!Math.asinh) Math.asinh = function(x) {
     var absX = Math.abs(x), w
     if (absX < 3.725290298461914e-9) // |x| < 2^-28
         return x
diff --git a/files/en-us/web/javascript/reference/global_objects/math/atan/index.html b/files/en-us/web/javascript/reference/global_objects/math/atan/index.html
index d337addcdf00348..e41129bd7ed4aea 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/atan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/atan/index.html
@@ -75,7 +75,7 @@
 
 
Syntax

 
-
Math.atan(x)

+
Math.atan(x)

 
 
Parameters

 
@@ -119,7 +119,7 @@ 
Examples

 
 
Using Math.atan()

 
-
Math.atan(1);   // 0.7853981633974483
+
Math.atan(1);   // 0.7853981633974483
 Math.atan(0);   // 0
 Math.atan(-0);  // -0
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/atan2/index.html b/files/en-us/web/javascript/reference/global_objects/math/atan2/index.html
index 8a79fa8fe48ddec..cdf392c3741b0a2 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/atan2/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/atan2/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
Math.atan2(y, x)

+
Math.atan2(y, x)

 
 
Parameters

 
@@ -81,7 +81,7 @@ 
Examples

 
 
Using Math.atan2()

 
-
Math.atan2(90, 15); // 1.4056476493802699
+
Math.atan2(90, 15); // 1.4056476493802699
 Math.atan2(15, 90); // 0.16514867741462683
 
 Math.atan2(±0, -0);               // ±PI.
diff --git a/files/en-us/web/javascript/reference/global_objects/math/atanh/index.html b/files/en-us/web/javascript/reference/global_objects/math/atanh/index.html
index 73c912ce625be5a..5cb8ee09c8313ee 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/atanh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/atanh/index.html
@@ -72,7 +72,7 @@
 
 
Syntax

 
-
Math.atanh(x)

+
Math.atanh(x)

 
 
Parameters

 
@@ -95,7 +95,7 @@ 
Examples

 
 
Using Math.atanh()

 
-
Math.atanh(-2);  // NaN
+
Math.atanh(-2);  // NaN
 Math.atanh(-1);  // -Infinity
 Math.atanh(0);   // 0
 Math.atanh(0.5); // 0.5493061443340548
@@ -155,7 +155,7 @@ 
Polyfill

     
    so this can be emulated by the following function:

 
-
Math.atanh = Math.atanh || function(x) {
+
Math.atanh = Math.atanh || function(x) {
   return Math.log((1+x)/(1-x)) / 2;
 };
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/cbrt/index.html b/files/en-us/web/javascript/reference/global_objects/math/cbrt/index.html
index 350c7aaa8655770..cf5b97608a7425d 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/cbrt/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/cbrt/index.html
@@ -65,7 +65,7 @@
 
 
Syntax

 
-
Math.cbrt(x)

+
Math.cbrt(x)

 
 
Parameters

 
@@ -116,7 +116,7 @@ 
Polyfill

     
    so this can be emulated by the following function:

 
-
if (!Math.cbrt) {
+
if (!Math.cbrt) {
   Math.cbrt = (function(pow) {
     return function cbrt(x){
       // ensure negative numbers remain negative:
@@ -130,7 +130,7 @@ 
Examples

 
 
Using Math.cbrt()

 
-
Math.cbrt(NaN); // NaN
+
Math.cbrt(NaN); // NaN
 Math.cbrt(-1); // -1
 Math.cbrt(-0); // -0
 Math.cbrt(-Infinity); // -Infinity
diff --git a/files/en-us/web/javascript/reference/global_objects/math/ceil/index.html b/files/en-us/web/javascript/reference/global_objects/math/ceil/index.html
index adf223c15183169..c6cf7c9e39db1a7 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/ceil/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/ceil/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
Math.ceil(x)

+
Math.ceil(x)

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/clz32/index.html b/files/en-us/web/javascript/reference/global_objects/math/clz32/index.html
index 97bdc9425270cfb..aa7f43caa444a1b 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/clz32/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/clz32/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
Math.clz32(x)

+
Math.clz32(x)

 
 
Parameters

 
@@ -63,7 +63,7 @@ 
Count Leading Ones and beyond

 
 
Consider the following 32-bit word:

 
-
var a = 32776;   // 00000000000000001000000000001000 (16 leading zeros)
+
var a = 32776;   // 00000000000000001000000000001000 (16 leading zeros)
 Math.clz32(a);   // 16
 
 var b = ~32776;  // 11111111111111110111111111110111 (32776 inversed, 0 leading zeros)
@@ -71,7 +71,7 @@ 
Count Leading Ones and beyond

 
 
Using this logic, a clon function can be created as follows:

 
-
var clz = Math.clz32;
+
var clz = Math.clz32;
 function clon(integer){
     return clz(~integer);
 }
@@ -82,7 +82,7 @@ 
Count Leading Ones and beyond

   fills in all the high bits with the lowest filled bit, then negates the bits to erase
   all higher set bits so that clz can then be used.

 
-
var clz = Math.clz32;
+
var clz = Math.clz32;
 function ctrz(integer){ // count trailing zeros
     // 1. fill in all the higher bits after the first one
     integer |= integer << 16;
@@ -113,7 +113,7 @@ 
Count Leading Ones and beyond

 
Make these helper functions into ASM.JS module; then, you have a true performance
   masterpiece. Situations like these are exactly what ASM.JS was designed for.

 
-
var countTrailsMethods = (function(stdlib, foreign, heap) {
+
var countTrailsMethods = (function(stdlib, foreign, heap) {
     "use asm";
     var clz = stdlib.Math.clz32;
     function ctrz(integer) { // count trailing zeros
@@ -142,7 +142,7 @@ 
Examples

 
 
Using Math.clz32()

 
-
Math.clz32(1);           // 31
+
Math.clz32(1);           // 31
 Math.clz32(1000);        // 22
 Math.clz32();            // 32
 
@@ -156,7 +156,7 @@ 
Polyfill

 
 
The following polyfill is the most efficient.

 
-
if (!Math.clz32) Math.clz32 = (function(log, LN2){
+
if (!Math.clz32) Math.clz32 = (function(log, LN2){
   return function(x) {
     // Let n be ToUint32(x).
     // Let p be the number of leading zero bits in
diff --git a/files/en-us/web/javascript/reference/global_objects/math/cos/index.html b/files/en-us/web/javascript/reference/global_objects/math/cos/index.html
index a198b2101a929df..4088c2f1507fe51 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/cos/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/cos/index.html
@@ -53,7 +53,7 @@
 
 
Syntax

 
-
Math.cos(x)

+
Math.cos(x)

 
 
Parameters

 
@@ -79,7 +79,7 @@ 
Examples

 
 
Using Math.cos()

 
-
Math.cos(0);           // 1
+
Math.cos(0);           // 1
 Math.cos(1);           // 0.5403023058681398
 
 Math.cos(Math.PI);     // -1
diff --git a/files/en-us/web/javascript/reference/global_objects/math/cosh/index.html b/files/en-us/web/javascript/reference/global_objects/math/cosh/index.html
index 658ddca3675c9ad..924d058bd8fe701 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/cosh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/cosh/index.html
@@ -52,7 +52,7 @@
 
 
Syntax

 
-
Math.cosh(x)

+
Math.cosh(x)

 
 
Parameters

 
@@ -75,7 +75,7 @@ 
Examples

 
 
Using Math.cosh()

 
-
Math.cosh(0);  // 1
+
Math.cosh(0);  // 1
 Math.cosh(1);  // 1.5430806348152437
 Math.cosh(-1); // 1.5430806348152437
 

@@ -84,14 +84,14 @@ 
Polyfill

 
 
This can be emulated with the help of the {{jsxref("Math.exp()")}} function:

 
-
Math.cosh = Math.cosh || function(x) {
+
Math.cosh = Math.cosh || function(x) {
   return (Math.exp(x) + Math.exp(-x)) / 2;
 }
 

 
 
or using only one call to the {{jsxref("Math.exp()")}} function:

 
-
Math.cosh = Math.cosh || function(x) {
+
Math.cosh = Math.cosh || function(x) {
   var y = Math.exp(x);
   return (y + 1 / y) / 2;
 };
diff --git a/files/en-us/web/javascript/reference/global_objects/math/e/index.html b/files/en-us/web/javascript/reference/global_objects/math/e/index.html
index dec20da72d367c9..d9de4920dfcef00 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/e/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/e/index.html
@@ -29,7 +29,7 @@ 
Using Math.E

 
 
The following function returns e:

 
-
function getNapier() {
+
function getNapier() {
   return Math.E;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/exp/index.html b/files/en-us/web/javascript/reference/global_objects/math/exp/index.html
index 26a65048e18c484..d025d66c2ed54c4 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/exp/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/exp/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
Math.exp(x)

+
Math.exp(x)

 
 
Parameters

 
@@ -49,7 +49,7 @@ 
Examples

 
 
Using Math.exp()

 
-
Math.exp(-1); // 0.36787944117144233
+
Math.exp(-1); // 0.36787944117144233
 Math.exp(0);  // 1
 Math.exp(1);  // 2.718281828459045
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/expm1/index.html b/files/en-us/web/javascript/reference/global_objects/math/expm1/index.html
index 09985e83a48b4e4..1b03b9f98c76b88 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/expm1/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/expm1/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
Math.expm1(x)

+
Math.expm1(x)

 
 
Parameters

 
@@ -47,7 +47,7 @@ 
Examples

 
 
Using Math.expm1()

 
-
Math.expm1(-1); // -0.6321205588285577
+
Math.expm1(-1); // -0.6321205588285577
 Math.expm1(0);  // 0
 Math.expm1(1);  // 1.718281828459045
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/floor/index.html b/files/en-us/web/javascript/reference/global_objects/math/floor/index.html
index ca659f24ad7f464..50cb3bcdbf9cb19 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/floor/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/floor/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
Math.floor(x)

+
Math.floor(x)

 
 
Parameters

 
@@ -51,7 +51,7 @@ 
Examples

 
 
Using Math.floor()

 
-
Math.floor( 45.95); //  45
+
Math.floor( 45.95); //  45
 Math.floor( 45.05); //  45
 Math.floor(  4   ); //   4
 Math.floor(-45.05); // -46
@@ -60,7 +60,7 @@ 
Using Math.floor()

 
 
Decimal adjustment

 
-
/**
+
/**
  * Decimal adjustment of a number.
  *
  * @param {String}  type  The type of adjustment.
diff --git a/files/en-us/web/javascript/reference/global_objects/math/fround/index.html b/files/en-us/web/javascript/reference/global_objects/math/fround/index.html
index 9e1886911ea1424..345da5a354001ad 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/fround/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/fround/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
var singleFloat = Math.fround(doubleFloat);

+  class="brush: js">var singleFloat = Math.fround(doubleFloat);

 
 
Parameters

 
@@ -66,14 +66,14 @@ 
Using Math.fround()

 
The number 1.5 can be precisely represented in the binary numeral system, and is
   identical in 32-bit and 64-bit:

 
-
Math.fround(1.5); // 1.5
+
Math.fround(1.5); // 1.5
 Math.fround(1.5) === 1.5; // true
 

 
 
However, the number 1.337 cannot be precisely represented in the binary numeral system,
   so it differs in 32-bit and 64-bit:

 
-
Math.fround(1.337); // 1.3370000123977661
+
Math.fround(1.337); // 1.3370000123977661
 Math.fround(1.337) === 1.337; // false
 

 
@@ -87,7 +87,7 @@ 
Using Math.fround()

     
    is too big for a 32-bit float, so Infinity is returned:

 
-
2 ** 150; // 1.42724769270596e+45
+
2 ** 150; // 1.42724769270596e+45
 Math.fround(2 ** 150); // Infinity
 

 
@@ -95,7 +95,7 @@ 
Using Math.fround()

   "NaN", "not-a-number")}} (NaN), Math.fround() will return
   NaN:

 
-
Math.fround('abc'); // NaN
+
Math.fround('abc'); // NaN
 Math.fround(NaN); // NaN
 

 
@@ -104,7 +104,7 @@ 
Polyfill

 
This can be emulated with the following function, if {{jsxref("Float32Array")}} are
   supported:

 
-
Math.fround = Math.fround || (function (array) {
+
Math.fround = Math.fround || (function (array) {
   return function(x) {
     return array[0] = x, array[0];
   };
@@ -113,7 +113,7 @@ 
Polyfill

 
 
Supporting older browsers is slower, but also possible:

 
-
if (!Math.fround) Math.fround = function(arg) {
+
if (!Math.fround) Math.fround = function(arg) {
   arg = Number(arg);
   // Return early for ±0 and NaN.
   if (!arg) return arg;
diff --git a/files/en-us/web/javascript/reference/global_objects/math/hypot/index.html b/files/en-us/web/javascript/reference/global_objects/math/hypot/index.html
index 241a1c1197a67cd..1d11487522a1a49 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/hypot/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/hypot/index.html
@@ -98,7 +98,7 @@
 
Syntax

 
 
Math.hypot([value1[, value2[, ...]]])

+  class="brush: js">Math.hypot([value1[, value2[, ...]]])

 
 
Parameters

 
@@ -149,7 +149,7 @@ 
Examples

 
 
Using Math.hypot()

 
-
Math.hypot(3, 4);          // 5
+
Math.hypot(3, 4);          // 5
 Math.hypot(3, 4, 5);       // 7.0710678118654755
 Math.hypot();              // 0
 Math.hypot(NaN);           // NaN
@@ -163,7 +163,7 @@ 
Polyfill

 
 
A naive approach that does not handle overflow/underflow issues:

 
-
if (!Math.hypot) Math.hypot = function() {
+
if (!Math.hypot) Math.hypot = function() {
   var y = 0, i = arguments.length, containsInfinity = false;
   while (i--) {
     var arg = arguments[i];
@@ -177,7 +177,7 @@ 
Polyfill

 
 
A polyfill that avoids underflows and overflows:

 
-
if (!Math.hypot) Math.hypot = function () {
+
if (!Math.hypot) Math.hypot = function () {
   var max = 0;
   var s = 0;
   var containsInfinity = false;
diff --git a/files/en-us/web/javascript/reference/global_objects/math/imul/index.html b/files/en-us/web/javascript/reference/global_objects/math/imul/index.html
index 0f956abd94beeb3..4f3395cd940b55a 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/imul/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/imul/index.html
@@ -24,7 +24,7 @@
 
Syntax

 
 
var product = Math.imul(a, b);

+  class="brush: js">var product = Math.imul(a, b);

 
 
Parameters

 
@@ -62,7 +62,7 @@ 
Examples

 
 
Using Math.imul()

 
-
Math.imul(2, 4);          // 8
+
Math.imul(2, 4);          // 8
 Math.imul(-1, 8);         // -8
 Math.imul(-2, -2);        // 4
 Math.imul(0xffffffff, 5); // -5
@@ -73,7 +73,7 @@ 
Polyfill

 
 
This can be emulated with the following function:

 
-
if (!Math.imul) Math.imul = function(a, b) {
+
if (!Math.imul) Math.imul = function(a, b) {
   var aHi = (a >>> 16) & 0xffff;
   var aLo = a & 0xffff;
   var bHi = (b >>> 16) & 0xffff;
@@ -87,7 +87,7 @@ 
Polyfill

   in which this polyfill would be used do not optimize with an internal integer type in
   JavaScript, instead using floating points for all numbers.

 
-
if (!Math.imul) Math.imul = function(opA, opB) {
+
if (!Math.imul) Math.imul = function(opA, opB) {
   opB |= 0; // ensure that opB is an integer. opA will automatically be coerced.
   // floating points give us 53 bits of precision to work with plus 1 sign bit
   // automatically handled for our convienence:
diff --git a/files/en-us/web/javascript/reference/global_objects/math/index.html b/files/en-us/web/javascript/reference/global_objects/math/index.html
index b51fa72d2df2a78..7bbb8d8c4b46172 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/index.html
@@ -127,7 +127,7 @@ 
Converting between degrees and r
 
 
Since humans tend to think in degrees, and some functions (such as CSS transforms) can accept degrees, it is a good idea to keep functions handy that convert between the two:

 
-
function degToRad(degrees) {
+
function degToRad(degrees) {
   return degrees * (Math.PI / 180);
 };
 
@@ -143,7 +143,7 @@ 
Calculating the heigh
 
 
In JavaScript, we can do this with the following:

 
-
50 * Math.tan(degToRad(60)).

+
50 * Math.tan(degToRad(60)).

 
 
We use our degToRad() function to convert 60 degrees to radians, as {{jsxref("Math.tan()")}} expects an input value in radians.

 
@@ -151,7 +151,7 @@ 
Returning a random intege
 
 
This can be achieved with a combination of {{jsxref("Math.random()")}} and {{jsxref("Math.floor()")}}:

 
-
function random(min, max) {
+
function random(min, max) {
   const num = Math.floor(Math.random() * (max - min + 1)) + min;
   return num;
 }
diff --git a/files/en-us/web/javascript/reference/global_objects/math/ln10/index.html b/files/en-us/web/javascript/reference/global_objects/math/ln10/index.html
index acb0436c7daf823..0cbe095a236c8ca 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/ln10/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/ln10/index.html
@@ -29,7 +29,7 @@ 
Using Math.LN10

 
 
The following function returns the natural log of 10:

 
-
function getNatLog10() {
+
function getNatLog10() {
   return Math.LN10;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/ln2/index.html b/files/en-us/web/javascript/reference/global_objects/math/ln2/index.html
index 93018266a144dfa..ad18c2374d17ed1 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/ln2/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/ln2/index.html
@@ -29,7 +29,7 @@ 
Using Math.LN2

 
 
The following function returns the natural log of 2:

 
-
function getNatLog2() {
+
function getNatLog2() {
   return Math.LN2;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/log/index.html b/files/en-us/web/javascript/reference/global_objects/math/log/index.html
index 969dd7d93d7824e..d50e95d69aa1ef9 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log/index.html
@@ -65,7 +65,7 @@
 
 
Syntax

 
-
Math.log(x)

+
Math.log(x)

 
 
Parameters

 
@@ -101,7 +101,7 @@ 
Examples

 
 
Using Math.log()

 
-
Math.log(-1); // NaN, out of range
+
Math.log(-1); // NaN, out of range
 Math.log(0);  // -Infinity
 Math.log(1);  // 0
 Math.log(10); // 2.302585092994046
@@ -123,7 +123,7 @@ 
Using Math.log() with a different
     
   ):

 
-
function getBaseLog(x, y) {
+
function getBaseLog(x, y) {
   return Math.log(y) / Math.log(x);
 }
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/log10/index.html b/files/en-us/web/javascript/reference/global_objects/math/log10/index.html
index 8e3b145004aad77..755bdc17dabe51e 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log10/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log10/index.html
@@ -66,7 +66,7 @@
 
 
Syntax

 
-
Math.log10(x)

+
Math.log10(x)

 
 
Parameters

 
@@ -96,7 +96,7 @@ 
Examples

 
 
Using Math.log10()

 
-
Math.log10(2);      // 0.3010299956639812
+
Math.log10(2);      // 0.3010299956639812
 Math.log10(1);      // 0
 Math.log10(0);      // -Infinity
 Math.log10(-2);     // NaN
@@ -107,7 +107,7 @@ 
Polyfill

 
 
This can be emulated with the following function:

 
-
Math.log10 = Math.log10 || function(x) {
+
Math.log10 = Math.log10 || function(x) {
   return Math.log(x) * Math.LOG10E;
 };
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/log10e/index.html b/files/en-us/web/javascript/reference/global_objects/math/log10e/index.html
index 8a6e2f161374d43..6383734a7acf158 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log10e/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log10e/index.html
@@ -29,7 +29,7 @@ 
Using Math.LOG10E

 
 
The following function returns the base 10 logarithm of e:

 
-
function getLog10e() {
+
function getLog10e() {
   return Math.LOG10E;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/log1p/index.html b/files/en-us/web/javascript/reference/global_objects/math/log1p/index.html
index c008dfcbae3ea8d..7e6d558cc541e55 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log1p/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log1p/index.html
@@ -47,7 +47,7 @@
 
 
Syntax

 
-
Math.log1p(x)

+
Math.log1p(x)

 
 
Parameters

 
@@ -92,7 +92,7 @@ 
Examples

 
 
Using Math.log1p()

 
-
Math.log1p(1);  // 0.6931471805599453
+
Math.log1p(1);  // 0.6931471805599453
 Math.log1p(0);  // 0
 Math.log1p(-1); // -Infinity
 Math.log1p(-2); // NaN
diff --git a/files/en-us/web/javascript/reference/global_objects/math/log2/index.html b/files/en-us/web/javascript/reference/global_objects/math/log2/index.html
index 280b1e2a5b3922e..7dd8aabeda5704c 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log2/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log2/index.html
@@ -66,7 +66,7 @@
 
 
Syntax

 
-
Math.log2(x)

+
Math.log2(x)

 
 
Parameters

 
@@ -98,7 +98,7 @@ 
Polyfill

   imprecise values on some inputs (like 1 << 29), wrap into
   {{jsxref("Math.round()")}} if working with bit masks.

 
-
if (!Math.log2) Math.log2 = function(x) {
+
if (!Math.log2) Math.log2 = function(x) {
   return Math.log(x) * Math.LOG2E;
 };
 

@@ -107,7 +107,7 @@ 
Examples

 
 
Using Math.log2()

 
-
Math.log2(3);    // 1.584962500721156
+
Math.log2(3);    // 1.584962500721156
 Math.log2(2);    // 1
 Math.log2(1);    // 0
 Math.log2(0);    // -Infinity
diff --git a/files/en-us/web/javascript/reference/global_objects/math/log2e/index.html b/files/en-us/web/javascript/reference/global_objects/math/log2e/index.html
index 092509c452307c7..e4cba5f0db7bdea 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/log2e/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/log2e/index.html
@@ -29,7 +29,7 @@ 
Using Math.LOG2E

 
 
The following function returns the base 2 logarithm of e:

 
-
function getLog2e() {
+
function getLog2e() {
   return Math.LOG2E;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/max/index.html b/files/en-us/web/javascript/reference/global_objects/math/max/index.html
index 6400307b89fad7a..64f8a3a0fb309fa 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/max/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/max/index.html
@@ -31,7 +31,7 @@
 
Syntax

 
 
Math.max([value1[, value2[, ...]]])

+  class="brush: js">Math.max([value1[, value2[, ...]]])

 
 
Parameters

 
@@ -61,7 +61,7 @@ 
Examples

 
 
Using Math.max()

 
-
Math.max(10, 20);   //  20
+
Math.max(10, 20);   //  20
 Math.max(-10, -20); // -10
 Math.max(-10, 20);  //  20
 

@@ -72,7 +72,7 @@ 
Getting the maximum element of
 
{{jsxref("Array.prototype.reduce", "Array.reduce()")}} can be used to find the maximum
   element in a numeric array, by comparing each value:

 
-
var arr = [1,2,3];
+
var arr = [1,2,3];
 var max = arr.reduce(function(a, b) {
     return Math.max(a, b);
 });
@@ -84,7 +84,7 @@ 
Getting the maximum element of
   programmatically constructed arrays. This should only be used for arrays with relatively
   few elements.

 
-
function getMaxOfArray(numArray) {
+
function getMaxOfArray(numArray) {
   return Math.max.apply(null, numArray);
 }

 
@@ -92,7 +92,7 @@ 
Getting the maximum element of
     operator is a shorter way of writing the apply solution to get the
   maximum of an array:

 
-
var arr = [1, 2, 3];
+
var arr = [1, 2, 3];
 var max = Math.max(...arr);
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/min/index.html b/files/en-us/web/javascript/reference/global_objects/math/min/index.html
index 90a60184be3cf26..969468b143c13a9 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/min/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/min/index.html
@@ -31,7 +31,7 @@
 
Syntax

 
 
Math.min([value1[, value2[, ...]]])

+  class="brush: js">Math.min([value1[, value2[, ...]]])

 
 
Parameters

 
@@ -65,7 +65,7 @@ 
Using Math.min()

 
This finds the min of x and y and assigns it to
   z:

 
-
var x = 10, y = -20;
+
var x = 10, y = -20;
 var z = Math.min(x, y);
 

 
@@ -74,7 +74,7 @@ 
Clipping a value with Math.min()

 
Math.min() is often used to clip a value so that it is always less than or
   equal to a boundary. For instance, this

 
-
var x = f(foo);
+
var x = f(foo);
 
 if (x > boundary) {
   x = boundary;
@@ -83,7 +83,7 @@ 
Clipping a value with Math.min()

 
 
may be written as this

 
-
var x = Math.min(f(foo), boundary);
+
var x = Math.min(f(foo), boundary);
 

 
 
{{jsxref("Math.max()")}} can be used in a similar way to clip a value at the other end.
diff --git a/files/en-us/web/javascript/reference/global_objects/math/pi/index.html b/files/en-us/web/javascript/reference/global_objects/math/pi/index.html
index 042c0008d942bf8..ead40d97d136140 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/pi/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/pi/index.html
@@ -29,7 +29,7 @@ 
Using Math.PI

 
 
The following function uses Math.PI to calculate the circumference of a circle with a passed radius.

 
-
function calculateCircumference(radius) {
+
function calculateCircumference(radius) {
   return Math.PI * (radius + radius);
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/pow/index.html b/files/en-us/web/javascript/reference/global_objects/math/pow/index.html
index 7b4e623c1e3635e..ffa21122d335342 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/pow/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/pow/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
Math.pow(base, exponent)

+
Math.pow(base, exponent)

 
 
Parameters

 
@@ -54,7 +54,7 @@ 
Examples

 
 
Using Math.pow()

 
-
// simple
+
// simple
 Math.pow(7, 2);    // 49
 Math.pow(7, 3);    // 343
 Math.pow(2, 10);   // 1024
diff --git a/files/en-us/web/javascript/reference/global_objects/math/random/index.html b/files/en-us/web/javascript/reference/global_objects/math/random/index.html
index 131dbcd4955643f..8f38324ab51d1b7 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/random/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/random/index.html
@@ -28,7 +28,7 @@
 
 
Syntax

 
-
Math.random()

+
Math.random()

 
 
Return value

 
@@ -46,7 +46,7 @@ 
Examples

 
Getting a random
   number between 0 (inclusive) and 1 (exclusive)

 
-
function getRandom() {
+
function getRandom() {
   return Math.random();
 }
 

@@ -58,7 +58,7 @@ 
Getting a random number betw
   is no lower than (and may possibly equal) min, and is less than (and
   not equal) max.

 
-
function getRandomArbitrary(min, max) {
+
function getRandomArbitrary(min, max) {
   return Math.random() * (max - min) + min;
 }
 

@@ -71,7 +71,7 @@ 
Getting a random integer be
   min isn't an integer), and is less than (but not equal to)
   max.

 
-
function getRandomInt(min, max) {
+
function getRandomInt(min, max) {
   min = Math.ceil(min);
   max = Math.floor(max);
   return Math.floor(Math.random() * (max - min) + min); //The maximum is exclusive and the minimum is inclusive
@@ -92,7 +92,7 @@ 
Getting a random
   minimum and the maximum? The getRandomIntInclusive() function below
   accomplishes that.

 
-
function getRandomIntInclusive(min, max) {
+
function getRandomIntInclusive(min, max) {
   min = Math.ceil(min);
   max = Math.floor(max);
   return Math.floor(Math.random() * (max - min + 1) + min); //The maximum is inclusive and the minimum is inclusive
diff --git a/files/en-us/web/javascript/reference/global_objects/math/round/index.html b/files/en-us/web/javascript/reference/global_objects/math/round/index.html
index dc182dbb31fab5c..209824bf33a95ef 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/round/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/round/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
Math.round(x)

+
Math.round(x)

 
 
Parameters

 
@@ -49,7 +49,7 @@ 
Examples

 
 
Using round

 
-
Math.round( 20.49); //  20
+
Math.round( 20.49); //  20
 Math.round( 20.5 ); //  21
 Math.round( 42   ); //  42
 Math.round(-20.5 ); // -20
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sign/index.html b/files/en-us/web/javascript/reference/global_objects/math/sign/index.html
index b6ac9364fc69129..b334117226e5756 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sign/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sign/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
Math.sign(x)

+
Math.sign(x)

 
 
Parameters

 
@@ -55,7 +55,7 @@ 
Description

 
 
Polyfill

 
-
if (!Math.sign) {
+
if (!Math.sign) {
   Math.sign = function(x) {
     // If x is NaN, the result is NaN.
     // If x is -0, the result is -0.
@@ -83,7 +83,7 @@ 
Examples

 
 
Using Math.sign()

 
-
Math.sign(3);     //  1
+
Math.sign(3);     //  1
 Math.sign(-3);    // -1
 Math.sign('-3');  // -1
 Math.sign(0);     //  0
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sin/index.html b/files/en-us/web/javascript/reference/global_objects/math/sin/index.html
index f07e354f2a8b08f..86912b88ab27522 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sin/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sin/index.html
@@ -21,7 +21,7 @@
 
 
Syntax

 
-
Math.sin(x)

+
Math.sin(x)

 
 
Parameters

 
@@ -47,7 +47,7 @@ 
Examples

 
 
Using Math.sin()

 
-
Math.sin(0);           // 0
+
Math.sin(0);           // 0
 Math.sin(1);           // 0.8414709848078965
 
 Math.sin(Math.PI / 2); // 1
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sinh/index.html b/files/en-us/web/javascript/reference/global_objects/math/sinh/index.html
index 730a8b12cffb2f8..938586b4889e6e5 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sinh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sinh/index.html
@@ -53,7 +53,7 @@
 
 
Syntax

 
-
Math.sinh(x)

+
Math.sinh(x)

 
 
Parameters

 
@@ -76,14 +76,14 @@ 
Polyfill

 
 
This can be emulated with the help of the {{jsxref("Math.exp()")}} function:

 
-
Math.sinh = Math.sinh || function(x) {
+
Math.sinh = Math.sinh || function(x) {
   return (Math.exp(x) - Math.exp(-x)) / 2;
 }
 

 
 
or using only one call to the {{jsxref("Math.exp()")}} function:

 
-
Math.sinh = Math.sinh || function(x) {
+
Math.sinh = Math.sinh || function(x) {
   var y = Math.exp(x);
   return (y - 1 / y) / 2;
 }
@@ -93,7 +93,7 @@ 
Examples

 
 
Using Math.sinh()

 
-
Math.sinh(0); // 0
+
Math.sinh(0); // 0
 Math.sinh(1); // 1.1752011936438014
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sqrt/index.html b/files/en-us/web/javascript/reference/global_objects/math/sqrt/index.html
index 3342693949fa536..92ae99c65893104 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sqrt/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sqrt/index.html
@@ -71,7 +71,7 @@
 
 
Syntax

 
-
Math.sqrt(x)

+
Math.sqrt(x)

 
 
Parameters

 
@@ -98,7 +98,7 @@ 
Examples

 
 
Using Math.sqrt()

 
-
Math.sqrt(9); // 3
+
Math.sqrt(9); // 3
 Math.sqrt(2); // 1.414213562373095
 
 Math.sqrt(1);  // 1
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sqrt1_2/index.html b/files/en-us/web/javascript/reference/global_objects/math/sqrt1_2/index.html
index f3a726f4da6eacf..8d758071ae0a115 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sqrt1_2/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sqrt1_2/index.html
@@ -29,7 +29,7 @@ 
Using Math.SQRT1_2

 
 
The following function returns 1 over the square root of 2:

 
-
function getRoot1_2() {
+
function getRoot1_2() {
   return Math.SQRT1_2;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/sqrt2/index.html b/files/en-us/web/javascript/reference/global_objects/math/sqrt2/index.html
index 1707daff3aaf955..f196524cb357ca6 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/sqrt2/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/sqrt2/index.html
@@ -29,7 +29,7 @@ 
Using Math.SQRT2

 
 
The following function returns the square root of 2:

 
-
function getRoot2() {
+
function getRoot2() {
   return Math.SQRT2;
 }
 
diff --git a/files/en-us/web/javascript/reference/global_objects/math/tan/index.html b/files/en-us/web/javascript/reference/global_objects/math/tan/index.html
index 9fb06a2000bb0db..3713dec39eb0e99 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/tan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/tan/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
Math.tan(x)

+
Math.tan(x)

 
 
Parameters

 
@@ -48,14 +48,14 @@ 
Examples

 
 
Using Math.tan()

 
-
Math.tan(1); // 1.5574077246549023
+
Math.tan(1); // 1.5574077246549023
 

 
 
Because the Math.tan() function accepts radians, but it is often easier to
   work with degrees, the following function accepts a value in degrees, converts it to
   radians and returns the tangent.

 
-
function getTanDeg(deg) {
+
function getTanDeg(deg) {
   var rad = deg * Math.PI/180;
   return Math.tan(rad);
 }
diff --git a/files/en-us/web/javascript/reference/global_objects/math/tanh/index.html b/files/en-us/web/javascript/reference/global_objects/math/tanh/index.html
index adb986cd1ea9c5e..16fd3ff684d6490 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/tanh/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/tanh/index.html
@@ -95,7 +95,7 @@
 
 
Syntax

 
-
Math.tanh(x)

+
Math.tanh(x)

 
 
Parameters

 
@@ -118,7 +118,7 @@ 
Polyfill

 
 
This can be emulated with the help of the {{jsxref("Math.exp()")}} function:

 
-
Math.tanh = Math.tanh || function(x){
+
Math.tanh = Math.tanh || function(x){
     var a = Math.exp(+x), b = Math.exp(-x);
     return a == Infinity ? 1 : b == Infinity ? -1 : (a - b) / (a + b);
 }
@@ -128,7 +128,7 @@ 
Examples

 
 
Using Math.tanh()

 
-
Math.tanh(0);        // 0
+
Math.tanh(0);        // 0
 Math.tanh(Infinity); // 1
 Math.tanh(1);        // 0.7615941559557649
 

diff --git a/files/en-us/web/javascript/reference/global_objects/math/trunc/index.html b/files/en-us/web/javascript/reference/global_objects/math/trunc/index.html
index 2bf21129082cd07..d121c82d9a8bf63 100644
--- a/files/en-us/web/javascript/reference/global_objects/math/trunc/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/math/trunc/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
Math.trunc(x)
+
Math.trunc(x)
 

 
 
Parameters

@@ -53,7 +53,7 @@ 
Description

 
 
Polyfill

 
-
if (!Math.trunc) {
+
if (!Math.trunc) {
   Math.trunc = function(v) {
     v = +v;
     if (!isFinite(v)) return v;
@@ -77,7 +77,7 @@ 
Polyfill

 
 
or:

 
-
if (!Math.trunc) {
+
if (!Math.trunc) {
   Math.trunc = function (v) {
     return v < 0 ? Math.ceil(v) : Math.floor(v);
   };
@@ -88,7 +88,7 @@ 
Examples

 
 
Using Math.trunc()

 
-
Math.trunc(13.37);    // 13
+
Math.trunc(13.37);    // 13
 Math.trunc(42.84);    // 42
 Math.trunc(0.123);    //  0
 Math.trunc(-0.123);   // -0
diff --git a/files/en-us/web/javascript/reference/global_objects/nan/index.html b/files/en-us/web/javascript/reference/global_objects/nan/index.html
index 2efc0c1bc5c4e06..fd17964d17e4c2f 100644
--- a/files/en-us/web/javascript/reference/global_objects/nan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/nan/index.html
@@ -38,7 +38,7 @@ 
Testing against NaN

 
 
NaN compares unequal (via ==, !=, ===, and !==) to any other value -- including to another NaN value. Use {{jsxref("Number.isNaN()")}} or {{jsxref("Global_Objects/isNaN", "isNaN()")}} to most clearly determine whether a value is NaN. Or perform a self-comparison: NaN, and only NaN, will compare unequal to itself.

 
-
NaN === NaN;        // false
+
NaN === NaN;        // false
 Number.NaN === NaN; // false
 isNaN(NaN);         // true
 isNaN(Number.NaN);  // true
@@ -52,13 +52,13 @@ 
Testing against NaN

 
 
However, do note the difference between isNaN() and Number.isNaN(): the former will return true if the value is currently NaN, or if it is going to be NaN after it is coerced to a number, while the latter will return true only if the value is currently NaN:

 
-
isNaN('hello world');        // true
+
isNaN('hello world');        // true
 Number.isNaN('hello world'); // false
 

 
 
Additionally, some array methods cannot find NaN, while others can.

 
-
let arr = [2, 4, NaN, 12];
+
let arr = [2, 4, NaN, 12];
 arr.indexOf(NaN);                      // -1 (false)
 arr.includes(NaN);                     // true
 arr.findIndex(n => Number.isNaN(n));   // 2
diff --git a/files/en-us/web/javascript/reference/global_objects/null/index.html b/files/en-us/web/javascript/reference/global_objects/null/index.html
index 39dd424a76da306..a349455c9ff694c 100644
--- a/files/en-us/web/javascript/reference/global_objects/null/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/null/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
null

+
null

 
 
Description

 
@@ -28,10 +28,10 @@ 
Description

   to no object. In APIs, null is often retrieved in a place where an object
   can be expected but no object is relevant. 

 
-
// foo does not exist. It is not defined and has never been initialized:
+
// foo does not exist. It is not defined and has never been initialized:
 foo; //ReferenceError: foo is not defined

 
-
// foo is known to exist now but it has no type or value:
+
// foo is known to exist now but it has no type or value:
 var foo = null;
 foo; //null
 

@@ -46,7 +46,7 @@ 
Difference between null, as the former performs
   type-conversion.

 
-
typeof null          // "object" (not "null" for legacy reasons)
+
typeof null          // "object" (not "null" for legacy reasons)
 typeof undefined     // "undefined"
 null === undefined   // false
 null  == undefined   // true
diff --git a/files/en-us/web/javascript/reference/global_objects/number/epsilon/index.html b/files/en-us/web/javascript/reference/global_objects/number/epsilon/index.html
index fa664a65452fa22..954f403c451be90 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/epsilon/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/epsilon/index.html
@@ -27,7 +27,7 @@ 
Examples

 
 
Testing equality

 
-
x = 0.2;
+
x = 0.2;
 y = 0.3;
 z = 0.1;
 equal = (Math.abs(x - y + z) < Number.EPSILON);
@@ -35,7 +35,7 @@ 
Testing equality

 
 
Polyfill

 
-
if (Number.EPSILON === undefined) {
+
if (Number.EPSILON === undefined) {
     Number.EPSILON = Math.pow(2, -52);
 }
 

diff --git a/files/en-us/web/javascript/reference/global_objects/number/index.html b/files/en-us/web/javascript/reference/global_objects/number/index.html
index 6f772e41b82323b..3b31ed14bc3a375 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/index.html
@@ -25,13 +25,13 @@ 
Description

 
 
Literal syntax

 
-
123    // one-hundred twenty-three
+
123    // one-hundred twenty-three
 123.0  // same
 123 === 123.0  // true

 
 
Function syntax

 
-
Number('123')  // returns the number 123
+
Number('123')  // returns the number 123
 Number('123') === 123  // true
 
 Number("unicorn")  // NaN
@@ -108,7 +108,7 @@ 
Using the
 
 
The following example uses the Number object's properties to assign values to several numeric variables:

 
-
const biggestNum     = Number.MAX_VALUE
+
const biggestNum     = Number.MAX_VALUE
 const smallestNum    = Number.MIN_VALUE
 const infiniteNum    = Number.POSITIVE_INFINITY
 const negInfiniteNum = Number.NEGATIVE_INFINITY
@@ -119,7 +119,7 @@ 
Integer range for Number

 
 
The following example shows the minimum and maximum integer values that can be represented as Number object. (More details on this are described in the ECMAScript standard, chapter 6.1.6 The Number Type.)

 
-
const biggestInt  = Number.MAX_SAFE_INTEGER  //  (253 - 1) =>  9007199254740991
+
const biggestInt  = Number.MAX_SAFE_INTEGER  //  (253 - 1) =>  9007199254740991
 const smallestInt = Number.MIN_SAFE_INTEGER  // -(253 - 1) => -9007199254740991

 
 
When parsing data that has been serialized to JSON, integer values falling outside of this range can be expected to become corrupted when JSON parser coerces them to Number type.

@@ -132,7 +132,7 @@ 
Using Number to convert a Date ob
 
 
The following example converts the {{jsxref("Date")}} object to a numerical value using Number as a function:

 
-
let d = new Date('December 17, 1995 03:24:00')
+
let d = new Date('December 17, 1995 03:24:00')
 console.log(Number(d))
 

 
@@ -140,7 +140,7 @@ 
Using Number to convert a Date ob
 
 
Convert numeric strings and null to numbers

 
-
Number('123')     // 123
+
Number('123')     // 123
 Number('123') === 123 /// true
 Number('12.3')    // 12.3
 Number('12.00')   // 12
diff --git a/files/en-us/web/javascript/reference/global_objects/number/isfinite/index.html b/files/en-us/web/javascript/reference/global_objects/number/isfinite/index.html
index 2cd7dcfcb74fd47..36ac0da24d0b29e 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/isfinite/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/isfinite/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
Number.isFinite(value)

+
Number.isFinite(value)

 
 
Parameters

 
@@ -49,7 +49,7 @@ 
Examples

 
 
Using isFinite

 
-
Number.isFinite(Infinity);  // false
+
Number.isFinite(Infinity);  // false
 Number.isFinite(NaN);       // false
 Number.isFinite(-Infinity); // false
 
@@ -64,7 +64,7 @@ 
Using isFinite

 
 
Polyfill

 
-
if (Number.isFinite === undefined) Number.isFinite = function(value) {
+
if (Number.isFinite === undefined) Number.isFinite = function(value) {
     return typeof value === 'number' && isFinite(value);
 }
 

diff --git a/files/en-us/web/javascript/reference/global_objects/number/isinteger/index.html b/files/en-us/web/javascript/reference/global_objects/number/isinteger/index.html
index de9639956e84e26..e4d20ccf6aed899 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/isinteger/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/isinteger/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
Number.isInteger(value)

+
Number.isInteger(value)

 
 
Parameters

 
@@ -46,7 +46,7 @@ 
Examples

 
 
Using isInteger

 
-
Number.isInteger(0);         // true
+
Number.isInteger(0);         // true
 Number.isInteger(1);         // true
 Number.isInteger(-100000);   // true
 Number.isInteger(99999999999999999999999); // true
@@ -69,7 +69,7 @@ 
Using isInteger

 
 
Polyfill

 
-
Number.isInteger = Number.isInteger || function(value) {
+
Number.isInteger = Number.isInteger || function(value) {
   return typeof value === 'number' &&
     isFinite(value) &&
     Math.floor(value) === value;
diff --git a/files/en-us/web/javascript/reference/global_objects/number/isnan/index.html b/files/en-us/web/javascript/reference/global_objects/number/isnan/index.html
index dfe6ab6a4f28989..4aa7015db07b5ee 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/isnan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/isnan/index.html
@@ -24,7 +24,7 @@
 
 
Syntax

 
-
Number.isNaN(value)

+
Number.isNaN(value)

 
 
Parameters

 
@@ -57,7 +57,7 @@ 
Examples

 
 
Using isNaN

 
-
Number.isNaN(NaN);        // true
+
Number.isNaN(NaN);        // true
 Number.isNaN(Number.NaN); // true
 Number.isNaN(0 / 0);      // true
 
@@ -82,7 +82,7 @@ 
Polyfill

 
The following works because NaN is the only value in JavaScript which is not equal to
   itself.

 
-
Number.isNaN = Number.isNaN || function isNaN(input) {
+
Number.isNaN = Number.isNaN || function isNaN(input) {
     return typeof input === 'number' && input !== input;
 }
 

diff --git a/files/en-us/web/javascript/reference/global_objects/number/issafeinteger/index.html b/files/en-us/web/javascript/reference/global_objects/number/issafeinteger/index.html
index 3ab974972a3f17f..7d0fe8cd192ecaf 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/issafeinteger/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/issafeinteger/index.html
@@ -48,7 +48,7 @@
 
 
Syntax

 
-
Number.isSafeInteger(testValue)
+
Number.isSafeInteger(testValue)
 

 
 
Parameters

@@ -65,7 +65,7 @@ 
Return value

 
 
Polyfill

 
-
Number.isSafeInteger = Number.isSafeInteger || function (value) {
+
Number.isSafeInteger = Number.isSafeInteger || function (value) {
    return Number.isInteger(value) && Math.abs(value) <= Number.MAX_SAFE_INTEGER;
 };
 

@@ -74,7 +74,7 @@ 
Examples

 
 
Using isSafeInteger

 
-
Number.isSafeInteger(3);                    // true
+
Number.isSafeInteger(3);                    // true
 Number.isSafeInteger(Math.pow(2, 53));      // false
 Number.isSafeInteger(Math.pow(2, 53) - 1);  // true
 Number.isSafeInteger(NaN);                  // false
diff --git a/files/en-us/web/javascript/reference/global_objects/number/max_safe_integer/index.html b/files/en-us/web/javascript/reference/global_objects/number/max_safe_integer/index.html
index f877cebee3e4eec..ab5037d096ca9e6 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/max_safe_integer/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/max_safe_integer/index.html
@@ -31,7 +31,7 @@ 
Description

 
 
Polyfill

 
-
if (!Number.MAX_SAFE_INTEGER) {
+
if (!Number.MAX_SAFE_INTEGER) {
     Number.MAX_SAFE_INTEGER = 9007199254740991; // Math.pow(2, 53) - 1;
 }
 

@@ -40,14 +40,14 @@ 
Examples

 
 
Return value of MAX_SAFE_INTEGER

 
-
Number.MAX_SAFE_INTEGER; // 9007199254740991
+
Number.MAX_SAFE_INTEGER; // 9007199254740991
 

 
 
Numbers higher than safe integer

 
 
This returns 2 because in floating points, the value is actually the decimal trailing "1" except for in subnormal precision cases such as zero.

 
-
Number.MAX_SAFE_INTEGER * Number.EPSILON; // 2
+
Number.MAX_SAFE_INTEGER * Number.EPSILON; // 2
 

 
 
Specifications

diff --git a/files/en-us/web/javascript/reference/global_objects/number/max_value/index.html b/files/en-us/web/javascript/reference/global_objects/number/max_value/index.html
index e5b404a4578eb0d..39008a8daaf64b7 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/max_value/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/max_value/index.html
@@ -29,7 +29,7 @@ 
Using MAX_VALUE

 
 
The following code multiplies two numeric values. If the result is less than or equal to MAX_VALUE, the func1 function is called; otherwise, the func2 function is called.

 
-
if (num1 * num2 <= Number.MAX_VALUE) {
+
if (num1 * num2 <= Number.MAX_VALUE) {
   func1();
 } else {
   func2();
diff --git a/files/en-us/web/javascript/reference/global_objects/number/min_safe_integer/index.html b/files/en-us/web/javascript/reference/global_objects/number/min_safe_integer/index.html
index 41cba9a950de1c4..685477e4287961f 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/min_safe_integer/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/min_safe_integer/index.html
@@ -29,7 +29,7 @@ 
Examples

 
 
Using MIN_SAFE_INTEGER

 
-
Number.MIN_SAFE_INTEGER // -9007199254740991
+
Number.MIN_SAFE_INTEGER // -9007199254740991
 -(Math.pow(2, 53) - 1)  // -9007199254740991
 

 
diff --git a/files/en-us/web/javascript/reference/global_objects/number/min_value/index.html b/files/en-us/web/javascript/reference/global_objects/number/min_value/index.html
index f489dfbbca3ad0d..361668dda18edd0 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/min_value/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/min_value/index.html
@@ -30,7 +30,7 @@ 
Using MIN_VALUE

 
 
The following code divides two numeric values. If the result is greater than or equal to MIN_VALUE, the func1 function is called; otherwise, the func2 function is called.

 
-
if (num1 / num2 >= Number.MIN_VALUE) {
+
if (num1 / num2 >= Number.MIN_VALUE) {
   func1();
 } else {
   func2();
diff --git a/files/en-us/web/javascript/reference/global_objects/number/nan/index.html b/files/en-us/web/javascript/reference/global_objects/number/nan/index.html
index d1c6e1735e1e81e..57f14edb4046bb6 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/nan/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/nan/index.html
@@ -22,7 +22,7 @@ 
Examples

 
 
Checking whether values are numeric

 
-
function sanitise(x) {
+
function sanitise(x) {
   if (isNaN(x)) {
     return Number.NaN;
   }
diff --git a/files/en-us/web/javascript/reference/global_objects/number/negative_infinity/index.html b/files/en-us/web/javascript/reference/global_objects/number/negative_infinity/index.html
index d8efb372d2e5c96..32e801b309fc6af 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/negative_infinity/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/negative_infinity/index.html
@@ -45,7 +45,7 @@ 
Using NEGATIVE_INFINITY

 
 
In the following example, the variable smallNumber is assigned a value that is smaller than the minimum value. When the {{jsxref("Statements/if...else", "if")}} statement executes, smallNumber has the value -Infinity, so smallNumber is set to a more manageable value before continuing.

 
-
var smallNumber = (-Number.MAX_VALUE) * 2;
+
var smallNumber = (-Number.MAX_VALUE) * 2;
 
 if (smallNumber === Number.NEGATIVE_INFINITY) {
   smallNumber = returnFinite();
diff --git a/files/en-us/web/javascript/reference/global_objects/number/parsefloat/index.html b/files/en-us/web/javascript/reference/global_objects/number/parsefloat/index.html
index f94595e65082671..9af2b93cad9ea80 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/parsefloat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/parsefloat/index.html
@@ -17,7 +17,7 @@
 
 
Syntax

 
-
Number.parseFloat(string)

+
Number.parseFloat(string)

 
 
Parameters

 
@@ -34,7 +34,7 @@ 
Return value

 
 
Polyfill

 
-
if (Number.parseFloat === undefined) {
+
if (Number.parseFloat === undefined) {
   Number.parseFloat = parseFloat;
 }
 

@@ -45,7 +45,7 @@ 
Number.parseFloat vs parseFloat

 
 
This method has the same functionality as the global {{jsxref("parseFloat", "parseFloat()")}} function:

 
-
Number.parseFloat === parseFloat; // true
+
Number.parseFloat === parseFloat; // true
 

 
 
This method is also part of ECMAScript 2015. (Its purpose is modularization of globals.)

diff --git a/files/en-us/web/javascript/reference/global_objects/number/parseint/index.html b/files/en-us/web/javascript/reference/global_objects/number/parseint/index.html
index 22cc4997437ce02..5a977014ca2903b 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/parseint/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/parseint/index.html
@@ -17,7 +17,7 @@
 
Syntax

 
 
Number.parseInt(string,[ radix])

+  class="brush: js">Number.parseInt(string,[ radix])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/number/positive_infinity/index.html b/files/en-us/web/javascript/reference/global_objects/number/positive_infinity/index.html
index 1af5a0e0d5bcb4d..969c0431e0b643c 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/positive_infinity/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/positive_infinity/index.html
@@ -45,7 +45,7 @@ 
Using POSITIVE_INFINITY

 
 
In the following example, the variable bigNumber is assigned a value that is larger than the maximum value. When the {{jsxref("Statements/if...else", "if")}} statement executes, bigNumber has the value Infinity, so bigNumber is set to a more manageable value before continuing.

 
-
var bigNumber = Number.MAX_VALUE * 2;
+
var bigNumber = Number.MAX_VALUE * 2;
 
 if (bigNumber == Number.POSITIVE_INFINITY) {
   bigNumber = returnFinite();
diff --git a/files/en-us/web/javascript/reference/global_objects/number/toexponential/index.html b/files/en-us/web/javascript/reference/global_objects/number/toexponential/index.html
index ad6e48666a84c24..46cdc320899a7c2 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/toexponential/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/toexponential/index.html
@@ -23,7 +23,7 @@
 
Syntax

 
 
numObj.toExponential([fractionDigits])

+  class="brush: js">numObj.toExponential([fractionDigits])

 
 
Parameters

 
@@ -71,7 +71,7 @@ 
Examples

 
 
Using toExponential

 
-
var numObj = 77.1234;
+
var numObj = 77.1234;
 
 console.log(numObj.toExponential());  // logs 7.71234e+1
 console.log(numObj.toExponential(4)); // logs 7.7123e+1
diff --git a/files/en-us/web/javascript/reference/global_objects/number/tofixed/index.html b/files/en-us/web/javascript/reference/global_objects/number/tofixed/index.html
index c24b55ac964668a..89068112915a08c 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/tofixed/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/tofixed/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
numObj.toFixed([digits])

+
numObj.toFixed([digits])

 
 
Parameters

 
@@ -71,7 +71,7 @@ 
Examples

 
 
Using toFixed

 
-
let numObj = 12345.6789
+
let numObj = 12345.6789
 
 numObj.toFixed()       // Returns '12346': note rounding, no fractional part
 numObj.toFixed(1)      // Returns '12345.7': note rounding
diff --git a/files/en-us/web/javascript/reference/global_objects/number/tolocalestring/index.html b/files/en-us/web/javascript/reference/global_objects/number/tolocalestring/index.html
index b55ccae35448b30..a45a4f45cd967ae 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/tolocalestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/tolocalestring/index.html
@@ -18,7 +18,7 @@
 
Syntax

 
 
numObj.toLocaleString([locales [, options]])

+  class="brush: js">numObj.toLocaleString([locales [, options]])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/number/toprecision/index.html b/files/en-us/web/javascript/reference/global_objects/number/toprecision/index.html
index e82ab3f5fb6133c..27598879b3d14e0 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/toprecision/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/toprecision/index.html
@@ -17,7 +17,7 @@
 
Syntax

 
 
numObj.toPrecision([precision])

+  class="brush: js">numObj.toPrecision([precision])

 
 
Parameters

 
diff --git a/files/en-us/web/javascript/reference/global_objects/number/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/number/tosource/index.html
index 48c50f1266eb9ef..f5f12e0bf0326c2 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/tosource/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
numObj.toSource()
+
numObj.toSource()
 Number.toSource()

 
 
Return value

diff --git a/files/en-us/web/javascript/reference/global_objects/number/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/number/tostring/index.html
index 06d625f72d70576..2a830bbb0ad4357 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/tostring/index.html
@@ -22,7 +22,7 @@
 
 
Syntax

 
-
numObj.toString([radix])

+
numObj.toString([radix])

 
 
Parameters

 
@@ -74,7 +74,7 @@ 
Examples

 
 
Using toString

 
-
let count = 10
+
let count = 10
 
 console.log(count.toString())    // displays '10'
 console.log((17).toString())     // displays '17'
diff --git a/files/en-us/web/javascript/reference/global_objects/number/valueof/index.html b/files/en-us/web/javascript/reference/global_objects/number/valueof/index.html
index 3d412fc778195ca..749e76433cba0e1 100644
--- a/files/en-us/web/javascript/reference/global_objects/number/valueof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/number/valueof/index.html
@@ -23,7 +23,7 @@
 
 
Syntax

 
-
numObj.valueOf()

+
numObj.valueOf()

 
 
Return value

 
@@ -39,7 +39,7 @@ 
Examples

 
 
Using valueOf

 
-
let numObj = new Number(10)
+
let numObj = new Number(10)
 console.log(typeof numObj)  // object
 
 let num = numObj.valueOf()
diff --git a/files/en-us/web/javascript/reference/global_objects/object/__definegetter__/index.html b/files/en-us/web/javascript/reference/global_objects/object/__definegetter__/index.html
index ccbd62cccecd21c..f728d6509e066db 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/__definegetter__/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/__definegetter__/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
obj.__defineGetter__(prop, func)

+  class="brush: js">obj.__defineGetter__(prop, func)

 
 
Parameters

 
@@ -50,14 +50,14 @@ 
Examples

 
 
Non-standard and deprecated way

 
-
var o = {};
+
var o = {};
 o.__defineGetter__('gimmeFive', function() { return 5; });
 console.log(o.gimmeFive); // 5
 

 
 
Standard-compliant ways

 
-
// Using the get operator
+
// Using the get operator
 var o = { get gimmeFive() { return 5; } };
 console.log(o.gimmeFive); // 5
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/__definesetter__/index.html b/files/en-us/web/javascript/reference/global_objects/object/__definesetter__/index.html
index d52c325d1e353f9..87b53d653288719 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/__definesetter__/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/__definesetter__/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
obj.__defineSetter__(prop, fun)

+  class="brush: js">obj.__defineSetter__(prop, fun)

 
 
Parameters

 
@@ -35,7 +35,7 @@ 
Parameters

   
fun

   
A function to be called when there is an attempt to set the specified property. This
     function takes the form
-    
function(val) { . . . }

+    
function(val) { . . . }

 
     

       
val

@@ -58,7 +58,7 @@ 
Examples

 
 
Non-standard and deprecated way

 
-
var o = {};
+
var o = {};
 o.__defineSetter__('value', function(val) { this.anotherValue = val; });
 o.value = 5;
 console.log(o.value); // undefined
@@ -67,7 +67,7 @@ 
Non-standard and deprecated way

 
 
Standard-compliant ways

 
-
// Using the set operator
+
// Using the set operator
 var o = { set value(val) { this.anotherValue = val; } };
 o.value = 5;
 console.log(o.value); // undefined
diff --git a/files/en-us/web/javascript/reference/global_objects/object/__lookupgetter__/index.html b/files/en-us/web/javascript/reference/global_objects/object/__lookupgetter__/index.html
index 0a09c2a7411b843..47ea76e5e09b29e 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/__lookupgetter__/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/__lookupgetter__/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
obj.__lookupGetter__(sprop)

+
obj.__lookupGetter__(sprop)

 
 
Parameters

 
@@ -44,7 +44,7 @@ 
Examples

 

   Standard-compliant and non-standard ways to get a property getter

 
-
var obj = {
+
var obj = {
   get foo() {
     return Math.random() > 0.5 ? 'foo' : 'bar';
   }
diff --git a/files/en-us/web/javascript/reference/global_objects/object/__lookupsetter__/index.html b/files/en-us/web/javascript/reference/global_objects/object/__lookupsetter__/index.html
index 228175402bf30ee..30713f85adf61d2 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/__lookupsetter__/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/__lookupsetter__/index.html
@@ -15,7 +15,7 @@
 
 
Syntax

 
-
obj.__lookupSetter__(sprop)

+
obj.__lookupSetter__(sprop)

 
 
Parameters

 
@@ -43,7 +43,7 @@ 
Examples

 

   Standard-compliant and non-standard ways to get a property setter

 
-
var obj = {
+
var obj = {
   set foo(value) {
     this.bar = value;
   }
diff --git a/files/en-us/web/javascript/reference/global_objects/object/assign/index.html b/files/en-us/web/javascript/reference/global_objects/object/assign/index.html
index d3b45c65d285ac1..ba7f92c27a9d7cd 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/assign/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/assign/index.html
@@ -28,7 +28,7 @@
 
Syntax

 
 
Object.assign(target, ...sources)

+  class="brush: js">Object.assign(target, ...sources)

 
 
Parameters

 
@@ -79,7 +79,7 @@ 
Polyfill

 
This polyfill doesn't support symbol
   properties, since ES5 doesn't have symbols anyway:

 
-
if (typeof Object.assign !== 'function') {
+
if (typeof Object.assign !== 'function') {
   // Must be writable: true, enumerable: false, configurable: true
   Object.defineProperty(Object, "assign", {
     value: function assign(target, varArgs) { // .length of function is 2
@@ -114,7 +114,7 @@ 
Examples

 
 
Cloning an object

 
-
const obj = { a: 1 };
+
const obj = { a: 1 };
 const copy = Object.assign({}, obj);
 console.log(copy); // { a: 1 }
 

@@ -127,7 +127,7 @@ 
Warning for Deep Clone

 
If the source value is a reference to an object, it only copies the reference value.
 

 
-
function test() {
+
function test() {
   'use strict';
 
   let obj1 = { a: 0 , b: { c: 0}};
@@ -158,7 +158,7 @@ 
Warning for Deep Clone

 
 
Merging objects

 
-
const o1 = { a: 1 };
+
const o1 = { a: 1 };
 const o2 = { b: 2 };
 const o3 = { c: 3 };
 
@@ -168,7 +168,7 @@ 
Merging objects

 
 
Merging objects with same properties

 
-
const o1 = { a: 1, b: 1, c: 1 };
+
const o1 = { a: 1, b: 1, c: 1 };
 const o2 = { b: 2, c: 2 };
 const o3 = { c: 3 };
 
@@ -180,7 +180,7 @@ 
Merging objects with same properti
 
 
Copying symbol-typed properties

 
-
const o1 = { a: 1 };
+
const o1 = { a: 1 };
 const o2 = { [Symbol('foo')]: 2 };
 
 const obj = Object.assign({}, o1, o2);
@@ -191,7 +191,7 @@ 
Copying symbol-typed properties

 

   Properties on the prototype chain and non-enumerable properties cannot be copied

 
-
const obj = Object.create({ foo: 1 }, { // foo is on obj's prototype chain.
+
const obj = Object.create({ foo: 1 }, { // foo is on obj's prototype chain.
   bar: {
     value: 2  // bar is a non-enumerable property.
   },
@@ -207,7 +207,7 @@ 
Primitives will be wrapped to objects

 
-
const v1 = 'abc';
+
const v1 = 'abc';
 const v2 = true;
 const v3 = 10;
 const v4 = Symbol('foo');
@@ -221,7 +221,7 @@ 
Primitives will be wrapped to obj
 
Exceptions will interrupt the
   ongoing copying task

 
-
const target = Object.defineProperty({}, 'foo', {
+
const target = Object.defineProperty({}, 'foo', {
   value: 1,
   writable: false
 }); // target.foo is a read-only property
@@ -239,7 +239,7 @@ 
Exceptions will inte
 
 
Copying accessors

 
-
const obj = {
+
const obj = {
   foo: 1,
   get bar() {
     return 2;
diff --git a/files/en-us/web/javascript/reference/global_objects/object/constructor/index.html b/files/en-us/web/javascript/reference/global_objects/object/constructor/index.html
index b9d52a5880af83a..98d48d697971d39 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/constructor/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/constructor/index.html
@@ -17,7 +17,7 @@ 
Description

 
 
All objects (with the exception of objects created with Object.create(null)) will have a constructor property. Objects created without the explicit use of a constructor function (such as object- and array-literals) will have a constructor property that points to the Fundamental Object constructor type for that object.

 
-
let o = {}
+
let o = {}
 o.constructor === Object // true
 
 let o = new Object
@@ -39,7 +39,7 @@ 
Displaying the constructor of a
 
 
The following example creates a constructor (Tree) and an object of that type (theTree). The example then displays the constructor property for the object theTree.

 
-
function Tree(name) {
+
function Tree(name) {
   this.name = name
 }
 
@@ -49,7 +49,7 @@ 
Displaying the constructor of a
 
 
This example displays the following output:

 
-
theTree.constructor is function Tree(name) {
+
theTree.constructor is function Tree(name) {
   this.name = name
 }
 

@@ -58,7 +58,7 @@ 
Changing the constructor of an ob
 
 
One can assign the constructor property for any value except null and undefined since those don't have a corresponding constructor function (like String, Number, Boolean etc.), but values which are primitives won't keep the change (with no exception thrown). This is due to the same mechanism, which allows one to set any property on primitive values (except null and undefined) with no effect. namely wherenever one uses such a primitive as an object an instance of the corresponding constructor is created and discarded right after the statement was executed.

 
-
let val = null;
+
let val = null;
 val.constructor = 1; //TypeError: var is null
 
 val = 'abc';
@@ -69,7 +69,7 @@ 
Changing the constructor of an ob
 
 
So basically one can change the value of the constructor property for anything, except the primitives mentioned above, note that changing the constructor property does not affect the instanceof operator:

 
-
let a = [];
+
let a = [];
 a.constructor = String
 a.constructor === String // true
 a instanceof String //false
@@ -83,7 +83,7 @@ 
Changing the constructor of an ob
 
 
If the object is sealed/frozen then the change has no effect and no exception is thrown:

 
-
let a = Object.seal({});
+
let a = Object.seal({});
 a.constructor = Number;
 a.constructor === Object; //true

 
@@ -91,7 +91,7 @@ 
Changing the constructor of a fu
 
 
Mostly this property is used for defining a function as a function-constructor with further calling it with new and prototype-inherits chain.

 
-
function Parent() { /* ... */ }
+
function Parent() { /* ... */ }
 Parent.prototype.parentMethod = function parentMethod() {}
 
 function Child() {
@@ -107,7 +107,7 @@ 
Changing the constructor of a fu
 
 
Take the following case: the object has the create() method to create itself.

 
-
function Parent() { /* ... */ }
+
function Parent() { /* ... */ }
 function CreatedConstructor() {
    Parent.call(this)
 }
@@ -124,7 +124,7 @@ 
Changing the constructor of a fu
 
 
To avoid this, just assign the necessary constructor you are going to use.

 
-
function Parent() { /* ... */ }
+
function Parent() { /* ... */ }
 function CreatedConstructor() { /* ... */ }
 
 CreatedConstructor.prototype = Object.create(Parent.prototype)
@@ -140,7 +140,7 @@ 
Changing the constructor of a fu
 
 
Let's consider one more case.

 
-
function ParentWithStatic() {}
+
function ParentWithStatic() {}
 
 ParentWithStatic.startPosition = { x: 0, y:0 } // Static member property
 ParentWithStatic.getStartPosition = function getStartPosition() {
@@ -170,7 +170,7 @@ 
Changing the constructor of a fu
 
 
For this example we need either to stay parent constructor to continue to work properly or reassign static properties to child's constructor:

 
-
...
+
...
 Child = Object.assign(Child, ParentWithStatic) // Notice that we assign it before we create(...) a prototype below
 Child.prototype = Object.create(ParentWithStatic.prototype)
 ...
@@ -178,7 +178,7 @@ 
Changing the constructor of a fu
 
 
or assign parent constructor identifier to a separate property on the Child constructor function and access it via that property:

 
-
...
+
...
 Child.parentConstructor = ParentWithStatic
 Child.prototype = Object.create(ParentWithStatic.prototype)
 ...
diff --git a/files/en-us/web/javascript/reference/global_objects/object/create/index.html b/files/en-us/web/javascript/reference/global_objects/object/create/index.html
index e1573aa7f124686..9c0fc5e29808707 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/create/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/create/index.html
@@ -26,7 +26,7 @@
 
Syntax

 
 
Object.create(proto, [propertiesObject])

+  class="brush: js">Object.create(proto, [propertiesObject])

 
 
Parameters

 
@@ -67,7 +67,7 @@ 
Custom and Null objects

   (especially if using silent error-traps that ignore errors). For example, here are two
   objects:

 
-
oco = Object.create( {} );   // create a normal object
+
oco = Object.create( {} );   // create a normal object
 ocn = Object.create( null ); // create a "null" object
 
 > console.log(oco) // {} -- Seems normal
@@ -83,7 +83,7 @@ 
Custom and Null objects

 
As shown above, all seems normal so far. However, when attempting to actually use these
   objects, their differences quickly become apparent:

 
-
> "oco is: " + oco // shows "oco is: [object Object]"
+
> "oco is: " + oco // shows "oco is: [object Object]"
 
 > "ocn is: " + ocn // throws error: Cannot convert object to primitive value
 

@@ -91,7 +91,7 @@ 
Custom and Null objects

 
Testing just a few of the many most basic built-in functions shows the magnitude of the
   problem more clearly:

 
-
> alert(oco) // shows [object Object]
+
> alert(oco) // shows [object Object]
 > alert(ocn) // throws error: Cannot convert object to primitive value
 
 > oco.toString() // shows [object Object]
@@ -112,7 +112,7 @@ 
Custom and Null objects

 
 
A simple common debugging function:

 
-
// display top-level property name:value pairs of given object
+
// display top-level property name:value pairs of given object
 function ShowProperties(obj){
   for(var prop in obj){
     console.log(prop + ": " + obj[prop] + "\n" );
@@ -122,7 +122,7 @@ 
Custom and Null objects

 
Not such simple results: (especially if silent error-trapping had hidden the error
     messages)

 
-
ob={}; ob.po=oco; ob.pn=ocn; // create a compound object using the test objects from above as property values
+
ob={}; ob.po=oco; ob.pn=ocn; // create a compound object using the test objects from above as property values
 
 > ShowProperties( ob ) // display top-level properties
 - po: [object Object]
@@ -134,7 +134,7 @@ 
Custom and Null objects

 
(But if the same object is created in a different order -- at least in some
     implementations...)

 
-
ob={}; ob.pn=ocn; ob.po=oco; // create same compound object again, but create same properties in different order
+
ob={}; ob.pn=ocn; ob.po=oco; // create same compound object again, but create same properties in different order
 
 > ShowProperties( ob ) // display top-level properties
 - Error: Cannot convert object to primitive value
@@ -150,7 +150,7 @@ 
Custom and Null objects

 
Be aware of, also, that using Object.entries() on an object created via Object.create()
   will result in an empty array being returned.

 
-
var obj = Object.create({ a: 1, b: 2 });
+
var obj = Object.create({ a: 1, b: 2 });
 
 > console.log(Object.entries(obj)); // shows "[]"
 

@@ -161,7 +161,7 @@ 
Some NON-solutions

 
 
Adding the missing object-method directly from the standard-object does NOT work:

 
-
ocn = Object.create( null ); // create "null" object (same as before)
+
ocn = Object.create( null ); // create "null" object (same as before)
 
 ocn.toString = Object.toString; // since new object lacks method then try assigning it directly from standard-object
 
@@ -176,7 +176,7 @@ 
Some NON-solutions

   either, since the new object does not have a real prototype (which is really the cause
   of ALL these problems) and one cannot be directly added:

 
-
ocn = Object.create( null ); // create "null" object (same as before)
+
ocn = Object.create( null ); // create "null" object (same as before)
 
 ocn.prototype.toString = Object.toString; // Error: Cannot set property 'toString' of undefined
 
@@ -190,7 +190,7 @@ 
Some NON-solutions

   Adding the missing object-method by using the standard-object as new object's prototype
   does not work either:

 
-
ocn = Object.create( null );        // create "null" object (same as before)
+
ocn = Object.create( null );        // create "null" object (same as before)
 Object.setPrototypeOf(ocn, Object); // set new object's prototype to the standard-object
 
 > ocn.toString() // error: Function.prototype.toString requires that 'this' be a Function
@@ -202,7 +202,7 @@ 
Some OK solutions

   standard-object does NOT work. However, adding the
   generic method directly, DOES:

 
-
ocn = Object.create( null ); // create "null" object (same as before)
+
ocn = Object.create( null ); // create "null" object (same as before)
 
 ocn.toString = toString; // since new object lacks method then assign it directly from generic version
 
@@ -219,14 +219,14 @@ 
Some OK solutions

 
However, setting the generic prototype as the new object's prototype
   works even better:

 
-
ocn = Object.create( null );                  // create "null" object (same as before)
+
ocn = Object.create( null );                  // create "null" object (same as before)
 Object.setPrototypeOf(ocn, Object.prototype); // set new object's prototype to the "generic" object (NOT standard-object)
 

 
 
(In addition to all the string-related functions shown above, this also adds:)
 

 
-
> ocn.valueOf() // shows {}
+
> ocn.valueOf() // shows {}
 > ocn.hasOwnProperty("x") // shows "false"
 > ocn.constructor // shows "Object() { [native code] }"
 
@@ -244,7 +244,7 @@ 
Polyfill

   supported in the real ES5 Object.create, this polyfill cannot support it
   due to a limitation inherent in versions of ECMAScript lower than 5.

 
-
 if (typeof Object.create !== "function") {
+
 if (typeof Object.create !== "function") {
     Object.create = function (proto, propertiesObject) {
         if (typeof proto !== 'object' && typeof proto !== 'function') {
             throw new TypeError('Object prototype may only be an Object: ' + proto);
@@ -273,7 +273,7 @@ 
Classical inheritance with
   inheritance. This is for a single inheritance, which is all that JavaScript supports.
 

 
-
// Shape - superclass
+
// Shape - superclass
 function Shape() {
   this.x = 0;
   this.y = 0;
@@ -308,7 +308,7 @@ 
Classical inheritance with
 
 
If you wish to inherit from multiple objects, then mixins are a possibility.

 
-
function MyClass() {
+
function MyClass() {
   SuperClass.call(this);
   OtherSuperClass.call(this);
 }
@@ -336,7 +336,7 @@ 
Classical inheritance with
 
Using propertiesObject
   argument with Object.create()

 
-
var o;
+
var o;
 
 // create an object with null as prototype
 o = Object.create(null);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/defineproperties/index.html b/files/en-us/web/javascript/reference/global_objects/object/defineproperties/index.html
index d891003a83654fe..20fe29c97855145 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/defineproperties/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/defineproperties/index.html
@@ -23,7 +23,7 @@
 
Syntax

 
 
Object.defineProperties(obj, props)

+  class="brush: js">Object.defineProperties(obj, props)

 
 
Parameters

 
@@ -99,7 +99,7 @@ 
Examples

 
 
Using Object.defineProperties

 
-
var obj = {};
+
var obj = {};
 Object.defineProperties(obj, {
   'property1': {
     value: true,
@@ -120,7 +120,7 @@ 
Polyfill

   equivalent (note the comment in isCallable) to the following
   reimplementation in JavaScript:

 
-
function defineProperties(obj, properties) {
+
function defineProperties(obj, properties) {
   function convertToDescriptor(desc) {
     function hasProperty(obj, prop) {
       return Object.prototype.hasOwnProperty.call(obj, prop);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/defineproperty/index.html b/files/en-us/web/javascript/reference/global_objects/object/defineproperty/index.html
index 65b53277b9119cd..46022a1face0eb1 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/defineproperty/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/defineproperty/index.html
@@ -25,7 +25,7 @@
 
Syntax

 
 
Object.defineProperty(obj, prop, descriptor)

+  class="brush: js">Object.defineProperty(obj, prop, descriptor)

 
 
Parameters

 
@@ -121,7 +121,7 @@ 
Description

   options explicitly, or point to {{jsxref("null")}} with {{jsxref("Object.create",
   "Object.create(null)")}}.

 
-
// using __proto__
+
// using __proto__
 var obj = {};
 var descriptor = Object.create(null); // no inherited properties
 descriptor.value = 'static';
@@ -170,7 +170,7 @@ 
Creating a property

   Object.defineProperty() creates a new property as described. Fields may be
   omitted from the descriptor, and default values for those fields are inputted.

 
-
var o = {}; // Creates a new object
+
var o = {}; // Creates a new object
 
 // Example of an object property added
 // with defineProperty with a data property descriptor
@@ -231,7 +231,7 @@ 
Writable attribute

 
When the writable property attribute is set to false, the
   property is said to be “non-writable”. It cannot be reassigned.

 
-
var o = {}; // Creates a new object
+
var o = {}; // Creates a new object
 
 Object.defineProperty(o, 'a', {
   value: 37,
@@ -269,7 +269,7 @@ 
Enumerable attribute

   up in a {{jsxref("Statements/for...in", "for...in")}} loop and
   {{jsxref("Object.keys()")}} or not.

 
-
var o = {};
+
var o = {};
 Object.defineProperty(o, 'a', {
   value: 1,
   enumerable: true
@@ -321,7 +321,7 @@ 
Configurable attribute

   can be deleted from the object and whether its attributes (other than value
   and writable) can be changed.

 
-
var o = {};
+
var o = {};
 Object.defineProperty(o, 'a', {
   get() { return 1; },
   configurable: false
@@ -359,7 +359,7 @@ 
Adding properties and default valu
   often a difference between using dot notation to assign a value and using
   Object.defineProperty(), as shown in the example below.

 
-
var o = {};
+
var o = {};
 
 o.a = 1;
 // is equivalent to:
@@ -387,7 +387,7 @@ 
Custom Setters and Getters

   temperature property is set, the archive array gets a log
   entry.

 
-
function Archiver() {
+
function Archiver() {
   var temperature = null;
   var archive = [];
 
@@ -414,7 +414,7 @@ 
Custom Setters and Getters

 
 
In this example, a getter always returns the same value.

 
-
var pattern = {
+
var pattern = {
     get() {
         return 'I always return this string, ' +
                'whatever you have assigned';
@@ -443,7 +443,7 @@ 
Inheritance of properties

   these methods use a variable to store the value, this value will be shared by all
   objects.

 
-
function myclass() {
+
function myclass() {
 }
 
 var value;
@@ -466,7 +466,7 @@ 
Inheritance of properties

   set methods, this points to the object which is used to access
   or modify the property.

 
-
function myclass() {
+
function myclass() {
 }
 
 Object.defineProperty(myclass.prototype, "x", {
@@ -488,7 +488,7 @@ 
Inheritance of properties

   on a prototype. However, if a non-writable value property is inherited, it still
   prevents from modifying the property on the object.

 
-
function myclass() {
+
function myclass() {
 }
 
 myclass.prototype.x = 1;
diff --git a/files/en-us/web/javascript/reference/global_objects/object/entries/index.html b/files/en-us/web/javascript/reference/global_objects/object/entries/index.html
index 3b78f10f87c4fb7..874990593733e31 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/entries/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/entries/index.html
@@ -25,7 +25,7 @@
 
 
Syntax

 
-
Object.entries(obj)

+
Object.entries(obj)

 
 
Parameters

 
@@ -62,7 +62,7 @@ 
Polyfill

   
  • or, you can use the simple, ready-to-deploy polyfill listed below:
    • 
 
 
-
    if (!Object.entries) {
+
    if (!Object.entries) {
   Object.entries = function( obj ){
     var ownProps = Object.keys( obj ),
         i = ownProps.length,
@@ -81,7 +81,7 @@ 
    Polyfill
    
 
 
    Examples
    
 
-
    const obj = { foo: 'bar', baz: 42 };
+
    const obj = { foo: 'bar', baz: 42 };
 console.log(Object.entries(obj)); // [ ['foo', 'bar'], ['baz', 42] ]
 
 // array like object
@@ -122,7 +122,7 @@ 
    Converting an Object to a
   entries. With Object.entries, you can easily convert from
   {{jsxref("Object")}} to {{jsxref("Map")}}:
    
 
-
    const obj = { foo: 'bar', baz: 42 };
+
    const obj = { foo: 'bar', baz: 42 };
 const map = new Map(Object.entries(obj));
 console.log(map); // Map(2) {"foo" => "bar", "baz" => 42}
 
    
@@ -133,7 +133,7 @@ 
    Iterating through an ObjectArray
     Destructuring, you can iterate through objects easily.
    
 
-
    const obj = { foo: 'bar', baz: 42 };
+
    const obj = { foo: 'bar', baz: 42 };
 Object.entries(obj).forEach(([key, value]) => console.log(`${key}: ${value}`)); // "foo: bar", "baz: 42"
 
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/freeze/index.html b/files/en-us/web/javascript/reference/global_objects/object/freeze/index.html
index d0326815d719be6..3e320b60608de12 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/freeze/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/freeze/index.html
@@ -34,7 +34,7 @@
 
 
    Syntax
    
 
-
    Object.freeze(obj)
    
+
    Object.freeze(obj)
    
 
 
    Parameters
    
 
@@ -68,7 +68,7 @@ 
    Description
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it were a frozen ordinary object, and be returned.
    
 
-
    > Object.freeze(1)
+
    > Object.freeze(1)
 TypeError: 1 is not an object // ES5 code
 
 > Object.freeze(1)
@@ -78,7 +78,7 @@ 
    Description
    
 
    An {{domxref("ArrayBufferView")}} with elements will cause a {{jsxref("TypeError")}},
   as they are views over memory and will definitely cause other possible issues:
    
 
-
    > Object.freeze(new Uint8Array(0)) // No elements
+
    > Object.freeze(new Uint8Array(0)) // No elements
 Uint8Array []
 
 > Object.freeze(new Uint8Array(1)) // Has elements
@@ -109,7 +109,7 @@ 
    Examples
    
 
 
    Freezing objects
    
 
-
    const obj = {
+
    const obj = {
   prop() {},
   foo: 'bar'
 };
@@ -158,7 +158,7 @@ 
    Freezing objects
    
 
 
    Freezing arrays
    
 
-
    let a = [0];
+
    let a = [0];
 Object.freeze(a); // The array cannot be modified now.
 
 a[0] = 1; // fails silently
@@ -178,7 +178,7 @@ 
    Freezing arrays
    
   constant. The following example shows that a frozen object is not constant
   (freeze is shallow).
    
 
-
    const obj1 = {
+
    const obj1 = {
   internal: {}
 };
 
@@ -202,7 +202,7 @@ 
    What is "shallow freeze"?
    
   objects are not frozen and may be the target of property addition, removal or value
   re-assignment operations.
    
 
-
    const employee = {
+
    const employee = {
   name: "Mayank",
   designation: "Developer",
   address: {
@@ -229,7 +229,7 @@ 
    What is "shallow freeze"?
    
   recursively when an object is in the process of being made immutable. You still run a
   risk of freezing an object that shouldn't be frozen, such as [window].
    
 
-
    function deepFreeze(object) {
+
    function deepFreeze(object) {
   // Retrieve the property names defined on object
   const propNames = Object.getOwnPropertyNames(object);
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/fromentries/index.html b/files/en-us/web/javascript/reference/global_objects/object/fromentries/index.html
index 8f2f67ece50c207..bbfebdfebd57845 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/fromentries/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/fromentries/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    Object.fromEntries(iterable);
    
+
    Object.fromEntries(iterable);
    
 
 
    Parameters
    
 
@@ -58,7 +58,7 @@ 
    Converting a Map to an Object
    
 
    With Object.fromEntries, you can convert from {{jsxref("Map")}} to
   {{jsxref("Object")}}:
    
 
-
    const map = new Map([ ['foo', 'bar'], ['baz', 42] ]);
+
    const map = new Map([ ['foo', 'bar'], ['baz', 42] ]);
 const obj = Object.fromEntries(map);
 console.log(obj); // { foo: "bar", baz: 42 }
 
    
@@ -68,7 +68,7 @@ 
    Converting an Array to an Object
    
 
    With Object.fromEntries, you can convert from {{jsxref("Array")}} to
   {{jsxref("Object")}}:
    
 
-
    const arr = [ ['0', 'a'], ['1', 'b'], ['2', 'c'] ];
+
    const arr = [ ['0', 'a'], ['1', 'b'], ['2', 'c'] ];
 const obj = Object.fromEntries(arr);
 console.log(obj); // { 0: "a", 1: "b", 2: "c" }
 
    
@@ -80,7 +80,7 @@ 
    Object transformations
    
     href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array#Methods_2">array
     manipulation methods, you are able to transform objects like this:
    
 
-
    const object1 = { a: 1, b: 2, c: 3 };
+
    const object1 = { a: 1, b: 2, c: 3 };
 
 const object2 = Object.fromEntries(
   Object.entries(object1)
diff --git a/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html b/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html
index a44f951436b6be3..fe76c20c20b343a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptor/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    Object.getOwnPropertyDescriptor(obj, prop)
    
+  class="brush: js">Object.getOwnPropertyDescriptor(obj, prop)
    
 
 
    Parameters
    
 
@@ -71,7 +71,7 @@ 
    Examples
    
 
 
    Using Object.getOwnPropertyDescriptor
    
 
-
    var o, d;
+
    var o, d;
 
 o = { get foo() { return 17; } };
 d = Object.getOwnPropertyDescriptor(o, 'foo');
@@ -121,7 +121,7 @@ 
    Non-object coercion
    
   will cause a {{jsxref("TypeError")}}. In ES2015, a non-object first argument will be
   coerced to an object at first.
    
 
-
    Object.getOwnPropertyDescriptor('foo', 0);
+
    Object.getOwnPropertyDescriptor('foo', 0);
 // TypeError: "foo" is not an object  // ES5 code
 
 Object.getOwnPropertyDescriptor('foo', 0);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html b/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html
index 407e2706765b8df..542ae51fbe53e9f 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/getownpropertydescriptors/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    Object.getOwnPropertyDescriptors(obj)
    
+
    Object.getOwnPropertyDescriptors(obj)
    
 
 
    Parameters
    
 
@@ -67,7 +67,7 @@ 
    Creating a shallow clone
    
   properties from a source object to a target object, you are able to use this method and
   {{jsxref("Object.create()")}} for a shallow copy between two unknown objects:
    
 
-
    Object.create(
+
    Object.create(
   Object.getPrototypeOf(obj),
   Object.getOwnPropertyDescriptors(obj)
 );
@@ -80,7 +80,7 @@ 
    Creating a subclass
    
   awkward especially for getters and setters. Instead, you can use this code to set the
   prototype:
    
 
-
    function superclass() {}
+
    function superclass() {}
 superclass.prototype = {
   // Define your methods and properties here
 };
diff --git a/files/en-us/web/javascript/reference/global_objects/object/getownpropertynames/index.html b/files/en-us/web/javascript/reference/global_objects/object/getownpropertynames/index.html
index 8990da7ff7a835a..c9ea48dbaf68d46 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/getownpropertynames/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/getownpropertynames/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    Object.getOwnPropertyNames(obj)
    
+
    Object.getOwnPropertyNames(obj)
    
 
 
    Parameters
    
 
@@ -36,7 +36,7 @@ 
    Description
    
 
 
    In ES5, if the argument to this method is not an object (a primitive), then it will cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be coerced to an object.
    
 
-
    Object.getOwnPropertyNames('foo');
+
    Object.getOwnPropertyNames('foo');
 // TypeError: "foo" is not an object (ES5 code)
 
 Object.getOwnPropertyNames('foo');
@@ -47,7 +47,7 @@ 
    Examples
    
 
 
    Using Object.getOwnPropertyNames()
    
 
-
    var arr = ['a', 'b', 'c'];
+
    var arr = ['a', 'b', 'c'];
 console.log(Object.getOwnPropertyNames(arr).sort()); // .sort() is an array method.
 // logs ["0", "1", "2", "length"]
 
@@ -84,7 +84,7 @@ 
    Using Object.getOwnPropertyNames()
    Items on the prototype chain are not listed:
    
 
-
    function ParentClass() {}
+
    function ParentClass() {}
 ParentClass.prototype.inheritedMethod = function() {};
 
 function ChildClass() {
@@ -105,7 +105,7 @@ 
    Get non-enumerable properties onlyThis uses the {{jsxref("Array.prototype.filter()")}} function to remove the enumerable keys (obtained with {{jsxref("Object.keys()")}}) from a list of all keys (obtained with Object.getOwnPropertyNames()) thus giving only the non-enumerable keys as output.
    
 
-
    var target = myObject;
+
    var target = myObject;
 var enum_and_nonenum = Object.getOwnPropertyNames(target);
 var enum_only = Object.keys(target);
 var nonenum_only = enum_and_nonenum.filter(function(key) {
diff --git a/files/en-us/web/javascript/reference/global_objects/object/getownpropertysymbols/index.html b/files/en-us/web/javascript/reference/global_objects/object/getownpropertysymbols/index.html
index a22f09316165674..beb9a0d9a5d6ce9 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/getownpropertysymbols/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/getownpropertysymbols/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    Object.getOwnPropertySymbols(obj)
    
+
    Object.getOwnPropertySymbols(obj)
    
 
 
    Parameters
    
 
@@ -40,7 +40,7 @@ 
    Examples
    
 
 
    Using getOwnPropertySymbols
    
 
-
    var obj = {};
+
    var obj = {};
 var a = Symbol('a');
 var b = Symbol.for('b');
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/getprototypeof/index.html b/files/en-us/web/javascript/reference/global_objects/object/getprototypeof/index.html
index 8af6531b563b087..d3044e7122d26b5 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/getprototypeof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/getprototypeof/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    Object.getPrototypeOf(obj)
    
+
    Object.getPrototypeOf(obj)
    
 
 
    Parameters
    
 
@@ -41,7 +41,7 @@ 
    Examples
    
 
 
    Using getPrototypeOf
    
 
-
    var proto = {};
+
    var proto = {};
 var obj = Object.create(proto);
 Object.getPrototypeOf(obj) === proto; // true
 
    
@@ -52,7 +52,7 @@ 
    Non-object coercion
    
   parameter isn't an object. In ES2015, the parameter will be coerced to an
   {{jsxref("Object")}}.
    
 
-
    Object.getPrototypeOf('foo');
+
    Object.getPrototypeOf('foo');
 // TypeError: "foo" is not an object (ES5 code)
 Object.getPrototypeOf('foo');
 // String.prototype                  (ES2015 code)
diff --git a/files/en-us/web/javascript/reference/global_objects/object/hasownproperty/index.html b/files/en-us/web/javascript/reference/global_objects/object/hasownproperty/index.html
index 36b4420218892b1..7ea492902f0ad5a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/hasownproperty/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/hasownproperty/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    obj.hasOwnProperty(prop)
    
+
    obj.hasOwnProperty(prop)
    
 
 
    Parameters
    
 
@@ -50,7 +50,7 @@ 
    Description
    
 
 
    Polyfill
    
 
-
    ;(function(hasOwnProp) { // IIFE with guarding semicolon
+
    ;(function(hasOwnProp) { // IIFE with guarding semicolon
   function hasOwnProperty(name) {
     if (this == null) { throw new TypeError("Cannot convert undefined or null to object!") }
     var O = Object(this), key = String(name);
@@ -74,7 +74,7 @@ 
    Note
    
 
    hasOwnProperty returns true even if the value of the property is
   null or undefined.
    
 
-
    o = new Object();
+
    o = new Object();
 o.propOne = null;
 o.hasOwnProperty('propOne');   // returns true
 o.propTwo = undefined;
@@ -89,7 +89,7 @@ 
    Using hasOwnProp
 
    The following example determines whether the o object contains a property
   named prop:
    
 
-
    o = new Object();
+
    o = new Object();
 o.hasOwnProperty('prop');   // returns false
 o.prop = 'exists';
 o.hasOwnProperty('prop');   // returns true
@@ -100,7 +100,7 @@ 
    Direct vs. inherited properties
    
 
    The following example differentiates between direct properties and properties inherited
   through the prototype chain:
    
 
-
    o = new Object();
+
    o = new Object();
 o.prop = 'exists';
 o.hasOwnProperty('prop');             // returns true
 o.hasOwnProperty('toString');         // returns false
@@ -117,7 +117,7 @@ 
    Iterating over the propertie
   hasOwnProperty itself is confined strictly to enumerable items (as with
   {{jsxref("Object.getOwnPropertyNames()")}}).
    
 
-
    var buz = {
+
    var buz = {
   fog: 'stack'
 };
 
@@ -139,7 +139,7 @@ 
    Using hasOwnProperty as a prope
   possibility exists that an object might have a property with this name, it is necessary
   to use an external hasOwnProperty to get correct results:
    
 
-
    var foo = {
+
    var foo = {
   hasOwnProperty: function() {
     return false;
   },
diff --git a/files/en-us/web/javascript/reference/global_objects/object/is/index.html b/files/en-us/web/javascript/reference/global_objects/object/is/index.html
index ed7832e03b718d9..3b363828cf10f31 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/is/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/is/index.html
@@ -20,7 +20,7 @@
 
    Syntax
    
 
 
    Object.is(value1, value2);
    
+  class="brush: js">Object.is(value1, value2);
    
 
 
    Parameters
    
 
@@ -76,7 +76,7 @@ 
    Examples
    
 
 
    Using Object.is
    
 
-
    Object.is('foo', 'foo');     // true
+
    Object.is('foo', 'foo');     // true
 Object.is(window, window);   // true
 
 Object.is('foo', 'bar');     // false
@@ -98,7 +98,7 @@ 
    Using Object.is
    
 
 
    Polyfill
    
 
-
    if (!Object.is) {
+
    if (!Object.is) {
   Object.defineProperty(Object, "is", {
     value: function (x, y) {
       // SameValue algorithm
diff --git a/files/en-us/web/javascript/reference/global_objects/object/isextensible/index.html b/files/en-us/web/javascript/reference/global_objects/object/isextensible/index.html
index 2867aaa5ffe428e..206833d88e28964 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/isextensible/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/isextensible/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    Object.isExtensible(obj)
    
+
    Object.isExtensible(obj)
    
 
 
    Parameters
    
 
@@ -48,7 +48,7 @@ 
    Examples
    
 
 
    Using Object.isExtensible
    
 
-
    // New objects are extensible.
+
    // New objects are extensible.
 var empty = {};
 Object.isExtensible(empty); // === true
 
@@ -71,7 +71,7 @@ 
    Non-object coercion
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it was a non-extensible ordinary object, return false.
    
 
-
    Object.isExtensible(1);
+
    Object.isExtensible(1);
 // TypeError: 1 is not an object (ES5 code)
 
 Object.isExtensible(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/isfrozen/index.html b/files/en-us/web/javascript/reference/global_objects/object/isfrozen/index.html
index f4ddb026707513c..c58d0bff8b7cc88 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/isfrozen/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/isfrozen/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    Object.isFrozen(obj)
    
+
    Object.isFrozen(obj)
    
 
 
    Parameters
    
 
@@ -46,7 +46,7 @@ 
    Examples
    
 
 
    Using Object.isFrozen
    
 
-
    // A new object is extensible, so it is not frozen.
+
    // A new object is extensible, so it is not frozen.
 Object.isFrozen({}); // === false
 
 // An empty object which is not extensible
@@ -135,7 +135,7 @@ 
    Non-object coercion
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it was a frozen ordinary object, return true.
    
 
-
    Object.isFrozen(1);
+
    Object.isFrozen(1);
 // TypeError: 1 is not an object (ES5 code)
 
 Object.isFrozen(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/isprototypeof/index.html b/files/en-us/web/javascript/reference/global_objects/object/isprototypeof/index.html
index 5fa4a1e27205a87..a2323487fd5552b 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/isprototypeof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/isprototypeof/index.html
@@ -33,7 +33,7 @@
 
    Syntax
    
 
 
    prototypeObj.isPrototypeOf(object)
    
+  class="brush: js">prototypeObj.isPrototypeOf(object)
    
 
 
    Parameters
    
 
@@ -68,7 +68,7 @@ 
    Using isPrototypeOf
    
   Bar.prototype, Foo.prototype and Object.prototype
   exist in the prototype chain for object baz:
    
 
-
    function Foo() {}
+
    function Foo() {}
 function Bar() {}
 function Baz() {}
 
@@ -91,7 +91,7 @@ 
    Using isPrototypeOf
    
 
    For example, check if baz object descends from Foo.prototype:
 
    
 
-
    if (Foo.prototype.isPrototypeOf(baz)) {
+
    if (Foo.prototype.isPrototypeOf(baz)) {
   // do something safe
 }
 
    
diff --git a/files/en-us/web/javascript/reference/global_objects/object/issealed/index.html b/files/en-us/web/javascript/reference/global_objects/object/issealed/index.html
index 31725fe9234cca8..d3aa0936022f950 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/issealed/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/issealed/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    Object.isSealed(obj)
    
+
    Object.isSealed(obj)
    
 
 
    Parameters
    
 
@@ -47,7 +47,7 @@ 
    Examples
    
 
 
    Using Object.isSealed
    
 
-
    // Objects aren't sealed by default.
+
    // Objects aren't sealed by default.
 var empty = {};
 Object.isSealed(empty); // === false
 
@@ -98,7 +98,7 @@ 
    Non-object coercion
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it was a sealed ordinary object, return true.
    
 
-
    Object.isSealed(1);
+
    Object.isSealed(1);
 // TypeError: 1 is not an object (ES5 code)
 
 Object.isSealed(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/keys/index.html b/files/en-us/web/javascript/reference/global_objects/object/keys/index.html
index 979acb8ee9161cc..99d90db6f0c591a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/keys/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/keys/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Object.keys(obj)
    
+
    Object.keys(obj)
    
 
 
    Parameters
    
 
@@ -49,7 +49,7 @@ 
    Examples
    
 
 
    Using Object.keys
    
 
-
    // simple array
+
    // simple array
 const arr = ['a', 'b', 'c'];
 console.log(Object.keys(arr)); // console: ['0', '1', '2']
 
@@ -81,7 +81,7 @@ 
    Non-object coercion
    
 
 
    From ES2015 onwards, a non-object argument will be coerced to an object.
    
 
-
    // In ES5
+
    // In ES5
 Object.keys('foo');  // TypeError: "foo" is not an object
 
 // In ES2015+
@@ -93,7 +93,7 @@ 
    Polyfill
    
 
    To add compatible Object.keys support in older environments that do not
   natively support it, copy the following snippet:
    
 
-
    // From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
+
    // From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
 if (!Object.keys) {
   Object.keys = (function() {
     'use strict';
diff --git a/files/en-us/web/javascript/reference/global_objects/object/object/index.html b/files/en-us/web/javascript/reference/global_objects/object/object/index.html
index 4f3edcda15c67ea..07e2ad7bb96d03a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/object/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/object/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    new Object()
+
    new Object()
 new Object(value)
    
 
 
    Parameters
    
@@ -39,7 +39,7 @@ 
    Examples
    
 
 
    Creating a new Object
    
 
-
    let o = new Object()
+
    let o = new Object()
 o.foo = 42
 
 console.log(o)
@@ -50,13 +50,13 @@ 
    Using Object given undefine
 
 
    The following examples store an empty Object object in o:
    
 
-
    let o = new Object()
+
    let o = new Object()
 
    
 
-
    let o = new Object(undefined)
+
    let o = new Object(undefined)
 
    
 
-
    let o = new Object(null)
    
+
    let o = new Object(null)
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/preventextensions/index.html b/files/en-us/web/javascript/reference/global_objects/object/preventextensions/index.html
index 755c932f5cb602b..aedb325d4efe239 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/preventextensions/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/preventextensions/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    Object.preventExtensions(obj)
    
+
    Object.preventExtensions(obj)
    
 
 
    Parameters
    
 
@@ -63,7 +63,7 @@ 
    Examples
    
 
 
    Using Object.preventExtensions
    
 
-
    // Object.preventExtensions returns the object
+
    // Object.preventExtensions returns the object
 // being made non-extensible.
 var obj = {};
 var obj2 = Object.preventExtensions(obj);
@@ -97,7 +97,7 @@ 
    Using Object.preventExtensions
    
 
 
    A non-extensible object's prototype is immutable:
    
 
-
    var fixed = Object.preventExtensions({});
+
    var fixed = Object.preventExtensions({});
 // throws a 'TypeError'.
 fixed.__proto__ = { oh: 'hai' };
    
 
@@ -107,7 +107,7 @@ 
    Non-object coercion
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it was a non-extensible ordinary object, return it.
    
 
-
    Object.preventExtensions(1);
+
    Object.preventExtensions(1);
 // TypeError: 1 is not an object (ES5 code)
 
 Object.preventExtensions(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/propertyisenumerable/index.html b/files/en-us/web/javascript/reference/global_objects/object/propertyisenumerable/index.html
index b892e2a8a4ec080..6e8504d5c0e655a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/propertyisenumerable/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/propertyisenumerable/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    obj.propertyIsEnumerable(prop)
    
+  class="brush: js">obj.propertyIsEnumerable(prop)
    
 
 
    Parameters
    
 
@@ -55,7 +55,7 @@ 
    A basic use of
 
    The following example shows the use of propertyIsEnumerable on objects and
   arrays:
    
 
-
    var o = {};
+
    var o = {};
 var a = [];
 o.prop = 'is enumerable';
 a[0] = 'is enumerable';
@@ -69,7 +69,7 @@ 
    User-defined vs. built-in objects
    The following example demonstrates the enumerability of user-defined vs. built-in
   properties:
    
 
-
    var a = ['is enumerable'];
+
    var a = ['is enumerable'];
 
 a.propertyIsEnumerable(0);          // returns true
 a.propertyIsEnumerable('length');   // returns false
@@ -80,7 +80,7 @@ 
    User-defined vs. built-in objects
    Direct vs. inherited properties
    
 
-
    var a = [];
+
    var a = [];
 a.propertyIsEnumerable('constructor');         // returns false
 
 function firstConstructor() {
diff --git a/files/en-us/web/javascript/reference/global_objects/object/proto/index.html b/files/en-us/web/javascript/reference/global_objects/object/proto/index.html
index 1fcb0d14d85e51c..117bfc7551667c6 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/proto/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/proto/index.html
@@ -40,7 +40,7 @@ 
    Examples
    
 
 
    Using __proto__
    
 
-
    +
     
 function Circle() {}
 const shape = {};
diff --git a/files/en-us/web/javascript/reference/global_objects/object/seal/index.html b/files/en-us/web/javascript/reference/global_objects/object/seal/index.html
index e199fe6cbf6e0f3..7335b38435b9519 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/seal/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/seal/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    Object.seal(obj)
    
+
    Object.seal(obj)
    
 
 
    Parameters
    
 
@@ -65,7 +65,7 @@ 
    Examples
    
 
 
    Using Object.seal
    
 
-
    var obj = {
+
    var obj = {
   prop: function() {},
   foo: 'bar'
 };
@@ -123,7 +123,7 @@ 
    Non-object coercion
    
   cause a {{jsxref("TypeError")}}. In ES2015, a non-object argument will be treated as if
   it was a sealed ordinary object by returning it.
    
 
-
    Object.seal(1);
+
    Object.seal(1);
 // TypeError: 1 is not an object (ES5 code)
 
 Object.seal(1);
diff --git a/files/en-us/web/javascript/reference/global_objects/object/setprototypeof/index.html b/files/en-us/web/javascript/reference/global_objects/object/setprototypeof/index.html
index f329748ba2e0a69..d958f810b58faa7 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/setprototypeof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/setprototypeof/index.html
@@ -34,7 +34,7 @@
 
    Syntax
    
 
 
    Object.setPrototypeOf(obj, prototype)
    
+  class="brush: js">Object.setPrototypeOf(obj, prototype)
    
 
 
    Parameters
    
 
@@ -68,7 +68,7 @@ 
    Appending Prototype Chains
    
   "Object.prototype.__proto__")}} permits appending a whole prototype chain to a new
   prototype object:
    
 
-
    /**
+
    /**
 *** Object.appendChain(@object, @prototype)
 *
 * Appends the first non-native prototype of a chain to a new prototype.
@@ -117,7 +117,7 @@ 
    Usage
    
 
    First example: Appending a chain
   to a prototype
    
 
-
    function Mammal() {
+
    function Mammal() {
   this.isMammal = 'yes';
 }
 
@@ -146,7 +146,7 @@ 
    First example: Appending
   Second example: Transforming a primitive value into an instance of its constructor and
   append its chain to a prototype
    
 
-
    function MySymbol() {
+
    function MySymbol() {
   this.isSymbol = 'yes';
 }
 
@@ -166,7 +166,7 @@ 
    First example: Appending
   Third example: Appending a chain to the Function.prototype object and appending a new
   function to that chain
    
 
-
    function Person(sName) {
+
    function Person(sName) {
   this.identity = sName;
 }
 
@@ -181,7 +181,7 @@ 
    Examples
    
 
 
    Using Object.setPrototypeOf
    
 
-
    var dict = Object.setPrototypeOf({}, null);
+
    var dict = Object.setPrototypeOf({}, null);
 
    
 
 
    Polyfill
    
@@ -189,7 +189,7 @@ 
    Polyfill
    
 
    Using the older {{jsxref("Object.prototype.__proto__")}} property, we can easily define
   Object.setPrototypeOf if it isn't available already:
    
 
-
    if (!Object.setPrototypeOf) {
+
    if (!Object.setPrototypeOf) {
     // Only works in Chrome and FireFox, does not work in IE:
      Object.prototype.setPrototypeOf = function(obj, proto) {
          if(obj.__proto__) {
diff --git a/files/en-us/web/javascript/reference/global_objects/object/tolocalestring/index.html b/files/en-us/web/javascript/reference/global_objects/object/tolocalestring/index.html
index 9d8c4f41e042f46..6f3a32ffdaf3dd0 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/tolocalestring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/tolocalestring/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    obj.toLocaleString()
    
+
    obj.toLocaleString()
    
 
 
    Return value
    
 
@@ -58,7 +58,7 @@ 
    Array toLocaleString() override
    
 
 
    For example:
    
 
-
    const testArray = [4, 7, 10];
+
    const testArray = [4, 7, 10];
 
 let euroPrices = testArray.toLocaleString('fr', { style: 'currency', currency: 'EUR'});
 // "4,00 €,7,00 €,10,00 €"
    
@@ -70,7 +70,7 @@ 
    Date toLocaleString() override
    
 
 
    For example:
    
 
-
    const testDate = new Date(Date.now());
+
    const testDate = new Date(Date.now());
 // "Date Fri May 29 2020 18:04:24 GMT+0100 (British Summer Time)"
 
 let deDate = testDate.toLocaleString('de');
@@ -87,7 +87,7 @@ 
    Number toLocaleString() override
    
 
 
    For example:
    
 
-
    const testNumber = 2901234564;
+
    const testNumber = 2901234564;
 // "2901234564"
 
 let deNumber = testNumber.toLocaleString('de');
diff --git a/files/en-us/web/javascript/reference/global_objects/object/tosource/index.html b/files/en-us/web/javascript/reference/global_objects/object/tosource/index.html
index 15c726f0f10f7a4..8bf610150cdf84a 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/tosource/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/tosource/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    Object.toSource();
+
    Object.toSource();
 obj.toSource();
    
 
 
    Return value
    
@@ -31,7 +31,7 @@ 
    Description
    
   
  • For the built-in {{jsxref("Object")}} object, toSource() returns the
     following string indicating that the source code is not available:
 
-    
    function Object() {
+    
    function Object() {
     [native code]
 }
 
    
@@ -47,7 +47,7 @@ 
    Overriding the toSource() method
    
 
 
    It is safe for objects to override the toSource() method. For example:
    
 
-
    function Person(name) {
+
    function Person(name) {
   this.name = name;
 }
 
@@ -81,7 +81,7 @@ 
    Limitations on cyclical objects
    
   list or a tree that can be traversed both ways, toSource() will not
   recreate the self-reference, as of Firefox 24. For example:
    
 
-
    var obj1 = {};
+
    var obj1 = {};
 var obj2 = { a: obj1 };
 obj1.b = obj2;
 
@@ -105,7 +105,7 @@ 
    Using toSource()
    
 
    The following code defines the Dog object type and creates
   theDog, an object of type Dog:
    
 
-
    function Dog(name, breed, color, sex) {
+
    function Dog(name, breed, color, sex) {
   this.name = name;
   this.breed = breed;
   this.color = color;
@@ -118,7 +118,7 @@ 
    Using toSource()
    
 
    Calling the toSource() method of theDog displays the
   JavaScript source that defines the object:
    
 
-
    theDog.toSource();
+
    theDog.toSource();
 // returns ({name:"Gabby", breed:"Lab", color:"chocolate", sex:"female"})
 
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/object/tostring/index.html b/files/en-us/web/javascript/reference/global_objects/object/tostring/index.html
index 14c160797776aee..647271b95fb039c 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/tostring/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/tostring/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    obj.toString()
    
+
    obj.toString()
    
 
 
    Return value
    
 
@@ -38,7 +38,7 @@ 
    Description
    
   "[object type]", where type is the
   object type. The following code illustrates this:
    
 
-
    const o = new Object();
+
    const o = new Object();
 o.toString(); // returns [object Object]
 
    
 
@@ -61,14 +61,14 @@ 
    Parameters
    
   1,2,3,4,5,.........) to another base numbers, in example below we are converting base 10
   number to a base 2 (binary) number.
    
 
-
    let baseTenInt = 10;
+
    let baseTenInt = 10;
 console.log(baseTenInt.toString(2));
 // Expected output is "1010"
 
    
 
 
    and same for big integers
    
 
-
    let bigNum = BigInt(20);
+
    let bigNum = BigInt(20);
 console.log(bigNum.toString(2));
 // Expected output is "10100"
    
 
@@ -98,7 +98,7 @@ 
    Overriding the default toString
 
    The following code defines the Dog object type and creates
   theDog, an object of type Dog:
    
 
-
    function Dog(name, breed, color, sex) {
+
    function Dog(name, breed, color, sex) {
   this.name = name;
   this.breed = breed;
   this.color = color;
@@ -111,7 +111,7 @@ 
    Overriding the default toString
 
    If you call the toString() method on this custom object, it returns the
   default value inherited from {{jsxref("Object")}}:
    
 
-
    theDog.toString(); // returns [object Object]
+
    theDog.toString(); // returns [object Object]
 
    
 
 
    The following code creates and assigns dogToString() to override the
@@ -119,7 +119,7 @@ 
    Overriding the default toString
   name, breed, color, and sex of the
   object, in the form "property = value;".
    
 
-
    Dog.prototype.toString = function dogToString() {
+
    Dog.prototype.toString = function dogToString() {
   const ret = 'Dog ' + this.name + ' is a ' + this.sex + ' ' + this.color + ' ' + this.breed;
   return ret;
 }
@@ -127,7 +127,7 @@ 
    Overriding the default toString
 
 
    Or, using ES6 {{jsxref("Template_literals", "template strings", "", 1)}}:
    
 
-
    Dog.prototype.toString = function dogToString() {
+
    Dog.prototype.toString = function dogToString() {
   return `Dog ${this.name} is a ${this.sex} ${this.color} ${this.breed}`;
 }
 
    
@@ -136,7 +136,7 @@ 
    Overriding the default toString
   context, JavaScript automatically calls the dogToString() function, which
   returns the following string:
    
 
-
    "Dog Gabby is a female chocolate Lab"
+
    "Dog Gabby is a female chocolate Lab"
 
    
 
 
    Using toString() to detect object class
@@ -150,7 +150,7 @@ 
    Using toString() to detect object
   it, passing the object you want to inspect as the first parameter (called
   thisArg).
    
 
-
    const toString = Object.prototype.toString;
+
    const toString = Object.prototype.toString;
 
 toString.call(new Date);    // [object Date]
 toString.call(new String);  // [object String]
@@ -166,7 +166,7 @@ 
    Using toString() to detect object
   {{jsxref("Symbol.toStringTag")}} property, leading to unexpected results. For example:
 
    
 
-
    const myDate = new Date();
+
    const myDate = new Date();
 Object.prototype.toString.call(myDate);     // [object Date]
 
 myDate[Symbol.toStringTag] = 'myDate';
diff --git a/files/en-us/web/javascript/reference/global_objects/object/valueof/index.html b/files/en-us/web/javascript/reference/global_objects/object/valueof/index.html
index 81556fbcaab3755..8ad9a95ec08b366 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/valueof/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/valueof/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    object.valueOf()
    
+
    object.valueOf()
    
 
 
    Return value
    
 
@@ -57,7 +57,7 @@ 
    Overriding valueOf for custom obj
   to the object's valueOf method:
    
 
 
    MyNumberType.prototype.valueOf = function() { return customPrimitiveValue; };
    
+  class="brush: js">MyNumberType.prototype.valueOf = function() { return customPrimitiveValue; };
    
 
 
    With the preceding code in place, any time an object of type MyNumberType
   is used in a context where it is to be represented as a primitive value, JavaScript
@@ -66,7 +66,7 @@ 
    Overriding valueOf for custom obj
 
    An object's valueOf method is usually invoked by JavaScript, but you can
   invoke it yourself as follows:
    
 
-
    myNumberType.valueOf()
    
+
    myNumberType.valueOf()
    
 
 
    
   
    Note: Objects in string contexts convert via the
@@ -81,7 +81,7 @@ 
    Examples
    
 
 
    Using valueOf on custom types
    
 
-
    function MyNumberType(n) {
+
    function MyNumberType(n) {
     this.number = n;
 }
 
@@ -95,7 +95,7 @@ 
    Using valueOf on custom types
    
 
 
    Using unary plus
    
 
-
    +"5" // 5 (string to number)
+
    +"5" // 5 (string to number)
 +"" // 0 (string to number)
 +"1 + 2" // NaN (doesn't evaluate)
 +new Date() // same as (new Date()).getTime()
diff --git a/files/en-us/web/javascript/reference/global_objects/object/values/index.html b/files/en-us/web/javascript/reference/global_objects/object/values/index.html
index 4308a233eafa5d5..2287a679a17765f 100644
--- a/files/en-us/web/javascript/reference/global_objects/object/values/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/object/values/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    Object.values(obj)
    
+
    Object.values(obj)
    
 
 
    Parameters
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/parsefloat/index.html b/files/en-us/web/javascript/reference/global_objects/parsefloat/index.html
index fc187c3466036ea..b8bcf762691d008 100644
--- a/files/en-us/web/javascript/reference/global_objects/parsefloat/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/parsefloat/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    parseFloat(string)
    
+
    parseFloat(string)
    
 
 
    Parameters
    
 
@@ -76,7 +76,7 @@ 
    parseFloat returning a numbe
 
 
    The following examples all return 3.14:
    
 
-
    parseFloat(3.14);
+
    parseFloat(3.14);
 parseFloat('3.14');
 parseFloat('  3.14  ');
 parseFloat('314e-2');
@@ -89,7 +89,7 @@ 
    parseFloat returning NaNThe following example returns NaN:
    
 
-
    parseFloat('FF2');
+
    parseFloat('FF2');
 
    
 
 
    parseFloat and BigInt
    
@@ -97,7 +97,7 @@ 
    parseFloat and BigIntThe following examples both return 900719925474099300, losing precision as
 	the integer is too large to be represented as a float:
    
 
-
    parseFloat(900719925474099267n);
+
    parseFloat(900719925474099267n);
 parseFloat('900719925474099267n');
 
    
 
diff --git a/files/en-us/web/javascript/reference/global_objects/parseint/index.html b/files/en-us/web/javascript/reference/global_objects/parseint/index.html
index e5cbed7eab075c2..df610136526ec15 100644
--- a/files/en-us/web/javascript/reference/global_objects/parseint/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/parseint/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    parseInt(string [, radix])
    
+
    parseInt(string [, radix])
    
 
 
    Parameters
    
 
@@ -123,7 +123,7 @@ 
    Octal interpretations with no radix
   implementations had interpreted a numeric string beginning with a leading 0 as
   octal. The following might have had an octal result, or it might have had a decimal result.
    
 
-
    parseInt('0e0')  // 0
+
    parseInt('0e0')  // 0
 parseInt('08')   // 0, because '8' is not an octal digit.
 
    
 
@@ -131,7 +131,7 @@ 
    Octal interpretations with no radix
   implementations to treat Strings beginning with a 0 character as octal
   values. Many implementations have adopted this behavior as of 2021.
    
 
-
    parseInt('0e0')  // 0
+
    parseInt('0e0')  // 0
 parseInt('08')   // 8
 
    
 
@@ -141,7 +141,7 @@ 
    A stricter parse function
    
 
 
    Regular expressions can help:
    
 
-
    function filterInt(value) {
+
    function filterInt(value) {
   if (/^[-+]?(\d+|Infinity)$/.test(value)) {
     return Number(value)
   } else {
@@ -165,7 +165,7 @@ 
    Using parseInt
    
 
 
    The following examples all return 15:
    
 
-
    parseInt('0xF', 16)
+
    parseInt('0xF', 16)
 parseInt('F', 16)
 parseInt('17', 8)
 parseInt(021, 8)
@@ -182,13 +182,13 @@ 
    Using parseInt
    
 
 
    The following examples all return NaN:
    
 
-
    parseInt('Hello', 8)  // Not a number at all
+
    parseInt('Hello', 8)  // Not a number at all
 parseInt('546', 2)    // Digits other than 0 or 1 are invalid for binary radix
 
    
 
 
    The following examples all return -15:
    
 
-
    parseInt('-F', 16)
+
    parseInt('-F', 16)
 parseInt('-0F', 16)
 parseInt('-0XF', 16)
 parseInt(-15.1, 10)
@@ -201,7 +201,7 @@ 
    Using parseInt
    
 
 
    The following examples all return 4.
    
 
-
    parseInt(4.7, 10)
+
    parseInt(4.7, 10)
 parseInt(4.7 * 1e22, 10)        // Very large number becomes 4
 parseInt(0.00000000000434, 10)  // Very small number becomes 4
 
    
@@ -209,7 +209,7 @@ 
    Using parseInt
    
 
    If the number is greater than 1e+21 (including) or less than 1e-7 (including), it will
   return 1. (when using radix 10).
    
 
-
    parseInt(0.0000001,10);
+
    parseInt(0.0000001,10);
 parseInt(0.000000123,10);
 parseInt(1e-7,10);
 parseInt(1000000000000000000000,10);
@@ -219,25 +219,25 @@ 
    Using parseInt
    
 
 
    The following example returns 224:
    
 
-
    parseInt('0e0', 16)
+
    parseInt('0e0', 16)
 
    
 
 
    {{jsxref("BigInt")}} values lose precision:
    
 
-
    parseInt('900719925474099267n')
+
    parseInt('900719925474099267n')
 // 900719925474099300
    
 
 
    parseInt doesn't work with numeric
     separators:
    
 
-
    parseInt('123_456')
+
    parseInt('123_456')
 // 123
 
    
 
 
    The radix is coerced to a Number:
    
 
-
    const obj = {
+
    const obj = {
   valueOf() {return 8}
 };
 parseInt('11', obj); // 9
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/all/index.html b/files/en-us/web/javascript/reference/global_objects/promise/all/index.html
index ff19fb0d9416cf1..188458302a825f3 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/all/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/all/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    Promise.all(iterable);
    
+
    Promise.all(iterable);
    
 
 
    Parameters
    
 
@@ -91,7 +91,7 @@ 
    Using Promise.all
    
 
 
    Promise.all waits for all fulfillments (or the first rejection).
    
 
-
    var p1 = Promise.resolve(3);
+
    var p1 = Promise.resolve(3);
 var p2 = 1337;
 var p3 = new Promise((resolve, reject) => {
   setTimeout(() => {
@@ -106,7 +106,7 @@ 
    Using Promise.all
    
 
    If the iterable contains non-promise values, they will be ignored, but still
   counted in the returned promise array value (if the promise is fulfilled):
    
 
-
    // this will be counted as if the iterable passed is empty, so it gets fulfilled
+
    // this will be counted as if the iterable passed is empty, so it gets fulfilled
 var p = Promise.all([1,2,3]);
 // this will be counted as if the iterable passed contains only the resolved promise with value "444", so it gets fulfilled
 var p2 = Promise.all([1,2,3, Promise.resolve(444)]);
@@ -131,7 +131,7 @@ 
    Asynchronicity or synchr
 
    This following example demonstrates the asynchronicity (or synchronicity, if the
   iterable passed is empty) of Promise.all:
    
 
-
    // we are passing as argument an array of promises that are already resolved,
+
    // we are passing as argument an array of promises that are already resolved,
 // to trigger Promise.all as soon as possible
 var resolvedPromisesArray = [Promise.resolve(33), Promise.resolve(44)];
 
@@ -153,7 +153,7 @@ 
    Asynchronicity or synchr
 
 
    The same thing happens if Promise.all rejects:
    
 
-
    var mixedPromisesArray = [Promise.resolve(33), Promise.reject(44)];
+
    var mixedPromisesArray = [Promise.resolve(33), Promise.reject(44)];
 var p = Promise.all(mixedPromisesArray);
 console.log(p);
 setTimeout(function() {
@@ -170,7 +170,7 @@ 
    Asynchronicity or synchr
 
    But, Promise.all resolves synchronously if and only if
   the iterable passed is empty:
    
 
-
    var p = Promise.all([]); // will be immediately resolved
+
    var p = Promise.all([]); // will be immediately resolved
 var p2 = Promise.all([1337, "hi"]); // non-promise values will be ignored, but the evaluation will be done asynchronously
 console.log(p);
 console.log(p2)
@@ -192,7 +192,7 @@ 
    Promise.all fail-fast behav
   if you pass in four promises that resolve after a timeout and one promise that rejects
   immediately, then Promise.all will reject immediately.
    
 
-
    var p1 = new Promise((resolve, reject) => {
+
    var p1 = new Promise((resolve, reject) => {
   setTimeout(() => resolve('one'), 1000);
 });
 var p2 = new Promise((resolve, reject) => {
@@ -224,7 +224,7 @@ 
    Promise.all fail-fast behav
 
 
    It is possible to change this behavior by handling possible rejections:
    
 
-
    var p1 = new Promise((resolve, reject) => {
+
    var p1 = new Promise((resolve, reject) => {
   setTimeout(() => resolve('p1_delayed_resolution'), 1000);
 });
 
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/allsettled/index.html b/files/en-us/web/javascript/reference/global_objects/promise/allsettled/index.html
index a297cacac33cc44..ad09f3099a52747 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/allsettled/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/allsettled/index.html
@@ -28,7 +28,7 @@
 
    Syntax
    
 
 
    Promise.allSettled(iterable);
    
+  class="brush: js">Promise.allSettled(iterable);
    
 
 
    Parameters
    
 
@@ -59,7 +59,7 @@ 
    Examples
    
 
 
    Using Promise.allSettled
    
 
-
    Promise.allSettled([
+
    Promise.allSettled([
   Promise.resolve(33),
   new Promise(resolve => setTimeout(() => resolve(66), 0)),
   99,
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/any/index.html b/files/en-us/web/javascript/reference/global_objects/promise/any/index.html
index 8141190c3461f1a..2604c221252a094 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/any/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/any/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
    Promise.any(iterable);
    
+
    Promise.any(iterable);
    
 
 
    Parameters
    
 
@@ -60,7 +60,7 @@ 
    First to fulfil
    
 
 
    Promise.any() resolves with the first promise to fulfil, even if a promise rejects first. This is in contrast to {{jsxref("Promise.race()")}}, which resolves or rejects with the first promise to settle.
    
 
-
    const pErr = new Promise((resolve, reject) => {
+
    const pErr = new Promise((resolve, reject) => {
   reject("Always fails");
 });
 
@@ -83,7 +83,7 @@ 
    Rejections with AggregateError
    
 
 
    Promise.any() rejects with an {{jsxref("AggregateError")}} if no promise fulfils.
    
 
-
    const pErr = new Promise((resolve, reject) => {
+
    const pErr = new Promise((resolve, reject) => {
   reject('Always fails');
 });
 
@@ -97,7 +97,7 @@ 
    Displaying the first image loaded
    In this example, we have a function that fetches an image and returns a blob. We use Promise.any() to fetch a couple of images and display the first one available (i.e. whose promise has resolved).
    
 
-
    function fetchAndDecode(url) {
+
    function fetchAndDecode(url) {
   return fetch(url).then(response => {
     if(!response.ok) {
       throw new Error(`HTTP error! status: ${response.status}`);
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/catch/index.html b/files/en-us/web/javascript/reference/global_objects/promise/catch/index.html
index 304bf73c70aefde..a795a8b95ed3612 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/catch/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/catch/index.html
@@ -29,7 +29,7 @@
 
 
    Syntax
    
 
-
    p.catch(onRejected);
+
    p.catch(onRejected);
 
 p.catch(function(reason) {
    // rejection
@@ -69,7 +69,7 @@ 
    Return value
    
 
 
    Demonstration of the internal call:
    
 
-
    // overriding original Promise.prototype.then/catch just to add some logs
+
    // overriding original Promise.prototype.then/catch just to add some logs
 (function(Promise){
     var originalThen = Promise.prototype.then;
     var originalCatch = Promise.prototype.catch;
@@ -105,7 +105,7 @@ 
    Examples
    
 
 
    Using and chaining the catch method
    
 
-
    var p1 = new Promise(function(resolve, reject) {
+
    var p1 = new Promise(function(resolve, reject) {
   resolve('Success');
 });
 
@@ -135,7 +135,7 @@ 
    Using and chaining the catch method
 
 
    Gotchas when throwing errors
    
 
-
    // Throwing an error will call the catch method most of the time
+
    // Throwing an error will call the catch method most of the time
 var p1 = new Promise(function(resolve, reject) {
   throw new Error('Uh-oh!');
 });
@@ -167,7 +167,7 @@ 
    Gotchas when throwing errors
    
 
 
    If it is resolved
    
 
-
    //Create a promise which would not call onReject
+
    //Create a promise which would not call onReject
 var p1 = Promise.resolve("calling next");
 
 var p2 = p1.catch(function (reason) {
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/finally/index.html b/files/en-us/web/javascript/reference/global_objects/promise/finally/index.html
index 1a5385d5d27e429..be4db56db715e2a 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/finally/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/finally/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    p.finally(onFinally);
+
    p.finally(onFinally);
 
 p.finally(function() {
    // settled (fulfilled or rejected)
@@ -79,7 +79,7 @@ 
    Examples
    
 
 
    Using finally
    
 
-
    let isLoading = true;
+
    let isLoading = true;
 
 fetch(myRequest).then(function(response) {
     var contentType = response.headers.get("content-type");
diff --git a/files/en-us/web/javascript/reference/global_objects/promise/index.html b/files/en-us/web/javascript/reference/global_objects/promise/index.html
index f756f4a00b6a2ec..e518ff69a9e5c98 100644
--- a/files/en-us/web/javascript/reference/global_objects/promise/index.html
+++ b/files/en-us/web/javascript/reference/global_objects/promise/index.html
@@ -48,7 +48,7 @@ 
    Chained Promises
    
 
    The methods promise.then(), promise.catch(), and promise.finally() are used to associate further action with a promise that becomes settled.
 
    The .then() method takes up to two arguments; the first argument is a callback function for the resolved case of the promise, and the second argument is a callback function for the rejected case. Each .then() returns a newly generated promise object, which can optionally be used for chaining; for example:
    
 
-
    +
     const myPromise = new Promise((resolve, reject) => {
   setTimeout(() => {
     resolve('foo');
@@ -65,7 +65,7 @@ 
    Chained Promises
    
 
 
    Handling a rejected promise in each .then() has consequences further down the promise chain. Sometimes there is no choice, because an error must be handled immediately. In such cases we must throw an error of some type to maintain error state down the chain. On the other hand, in the absence of an immediate need, it is simpler to leave out error handling until a final .catch() statement. A .catch() is really just a .then() without a slot for a callback function for the case when the promise is resolved.
    
 
-
    +
     myPromise
 .then(handleResolvedA)
 .then(handleResolvedB)
@@ -75,7 +75,7 @@ 
    Chained Promises
    
 
 
    Using {{JSxRef("Functions.arrow_functions", "Arrow Function Expressions")}} for the callback functions, an implementation of a promise chain might look something like this:
    
 
-
    +
     promise1
 .then(value => { return value + ' and bar'; })
 .then(value => { return value + ' and bar again'; })
@@ -89,22 +89,22 @@ 
    Chained Promises
    
 
 
    The promises of a chain are nested like Russian dolls, but get popped like the top of a stack. The first promise in the chain is most deeply nested and is the first to pop.
    
 
-
    (promise D, (promise C, (promise B, (promise A) ) ) )
    
+
    (promise D, (promise C, (promise B, (promise A) ) ) )
    
 
 
    When a nextValue is a promise, the effect is a dynamic replacement. The return causes a promise to be popped, but the nextValue promise is pushed into its place. For the nesting shown above, suppose the .then() associated with "promise B" returns a nextValue of "promise X". The resulting nesting would look like this:
    
 
-
    (promise D, (promise C, (promise X) ) )
    
+
    (promise D, (promise C, (promise X) ) )
    
 
 
    A promise can participate in more than one nesting. For the following code, the transition of promiseA into a "settled" state will cause both instances of .then() to be invoked.
    
 
-
    const promiseA = new Promise(myExecutorFunc);
+
    const promiseA = new Promise(myExecutorFunc);
 const promiseB = promiseA.then(handleFulfilled1, handleRejected1);
 const promiseC = promiseA.then(handleFulfilled2, handleRejected2);
 
    
 
 
    An action can be assigned to an already "settled" promise. In that case, the action (if appropriate) will be performed at the first asynchronous opportunity. Note that promises are guaranteed to be asynchronous. Therefore, an action for an already "settled" promise will occur only after the stack has cleared and a clock-tick has passed. The effect is much like that of setTimeout(action,10).
    
 
-
    const promiseA = new Promise( (resolutionFunc,rejectionFunc) => {
+
    const promiseA = new Promise( (resolutionFunc,rejectionFunc) => {
     resolutionFunc(777);
 });
 // At this point, "promiseA" is already settled.
@@ -124,7 +124,7 @@ 
    Incumbent settings object trackingTo illustrate this a bit further we can take a look at how an <iframe> embedded in a document communicates with its host. Since all web APIs are aware of the incumbent settings object, the following will work in all browsers:
    
 
-
    <!DOCTYPE html>
+
    <!DOCTYPE html>
 <iframe></iframe> <!-- we have a realm here -->
 <script> // we have a realm here as well
   const bound = frames[0].postMessage.bind(
@@ -139,7 +139,7 @@ 
    Incumbent settings object trackingThe same concept applies to promises. If we modify the above example a little bit, we get this:
    
 
-
    <!DOCTYPE html>
+
    <!DOCTYPE html>
 <iframe></iframe> <!-- we have a realm here -->
 <script> // we have a realm here as well
   const bound = frames[0].postMessage.bind(
@@ -154,7 +154,7 @@ 
    Incumbent settings object trackingIf we change this so that the <iframe> in the document is listening to post messages, we can observe the effect of the incumbent settings object:
    
 
-
    <!-- y.html -->
+
    <!-- y.html -->
 <!DOCTYPE html>
 <iframe src="x.html"></iframe>
 <script>
@@ -163,7 +163,7 @@ 
    Incumbent settings object tracking
 
-
    <!-- x.html -->
+
    <!-- x.html -->
 <!DOCTYPE html>
 <script>
 window.addEventListener("message", (event) => {
@@ -225,7 +225,7 @@ 
    Examples
    
 
 
    Basic Example
    
 
-
    let myFirstPromise = new Promise((resolve, reject) => {
+
    let myFirstPromise = new Promise((resolve, reject) => {
   // We call resolve(...) when what we were doing asynchronously was successful, and reject(...) when it failed.
   // In this example, we use setTimeout(...) to simulate async code.
   // In reality, you will probably be using something like XHR or an HTML5 API.
@@ -252,7 +252,7 @@ 
    Example with diverse situations
    
 
 
    This code can be run under NodeJS. Comprehension is enhanced by seeing the errors actually occur. To force more errors, change the threshold values.
    
 
-
    "use strict";
+
    "use strict";
 
 // To experiment with error handling, "threshold" values cause errors randomly
 const THRESHOLD_A = 8; // can use zero 0 to guarantee error
@@ -330,7 +330,7 @@ 
    Example with diverse situations
    
 
    Advanced Example
    
 
 
@@ -339,7 +339,7 @@ 
    Advanced Example
    
 
 
    The fulfillment of the promise is logged, via a fulfill callback set using {{JSxRef("Promise.prototype.then()","p1.then()")}}. A few logs show how the synchronous part of the method is decoupled from the asynchronous completion of the promise.
    
 
-
    "use strict";
+
    "use strict";
 var promiseCount = 0;
 
 function testPromise() {
@@ -374,7 +374,7 @@ 
    Advanced Example
    
 
    
 
 
    • 
 
 
-
    +
     new Map([[1, 'a'], [2, 'b'], [3, 'c']]).get(2); // "b"
 
 const myObj = {};
@@ -210,7 +210,7 @@ 
    Syntaxes expecting iterables
    
 
 
    Some statements and expressions expect iterables, for example the {{jsxref("Statements/for...of", "for...of")}} loops, the {{jsxref("Operators/Spread_syntax", "spread operator", "", 1)}}), {{jsxref("Operators/yield*", "yield*")}}, and {{jsxref("Operators/Destructuring_assignment", "destructuring assignment")}}:
    
 
-
    +
     for (const value of ['a', 'b', 'c']) {
     console.log(value);
 }
@@ -237,7 +237,7 @@ 
    Non-well-formed iterables
    
 
 
    Using one is likely to result in runtime errors or buggy behavior:
    
 
-
    +
     const nonWellFormedIterable = {};
 nonWellFormedIterable[Symbol.iterator] = () => 1;
 [...nonWellFormedIterable]; // TypeError: [] is not a function
@@ -247,7 +247,7 @@ 
    Iterator examples
    
 
 
    Simple iterator
    
 
-
    function makeIterator(array) {
+
    function makeIterator(array) {
   let nextIndex = 0
   return {
     next: function() {
@@ -270,7 +270,7 @@ 
    Simple iterator
    
 
 
    Infinite iterator
    
 
-
    function idMaker() {
+
    function idMaker() {
   let index = 0;
   return {
     next: function() {
@@ -292,7 +292,7 @@ 
    Infinite iterator
    
 
 
    With a generator
    
 
-
    function* makeSimpleGenerator(array) {
+
    function* makeSimpleGenerator(array) {
   let nextIndex = 0;
   while (nextIndex < array.length) {
     yield array[nextIndex++];
@@ -322,7 +322,7 @@ 
    With a generator
    
 
 
    With ES2015 class
    
 
-
    class SimpleClass {
+
    class SimpleClass {
   constructor(data) {
     this.data = data;
   }
@@ -356,7 +356,7 @@ 
    Is a generator object
 
 
    A {{jsxref("Generator", "generator object", "", 1)}} is both iterator and iterable:
    
 
-
    +
     const aGeneratorObject = function* () {
   yield 1;
   yield 2;
diff --git a/files/en-us/web/javascript/reference/lexical_grammar/index.html b/files/en-us/web/javascript/reference/lexical_grammar/index.html
index adcf028da775c20..83774ebd6346b6a 100644
--- a/files/en-us/web/javascript/reference/lexical_grammar/index.html
+++ b/files/en-us/web/javascript/reference/lexical_grammar/index.html
@@ -166,7 +166,7 @@ 
    Comments
    
 
 
    The first way is the // comment; this makes all text following it on the same line into a comment. For example:
    
 
-
    function comment() {
+
    function comment() {
   // This is a one line JavaScript comment
   console.log('Hello world!');
 }
@@ -177,7 +177,7 @@ 
    Comments
    
 
 
    For example, you can use it on a single line:
    
 
-
    function comment() {
+
    function comment() {
   /* This is a one line JavaScript comment */
   console.log('Hello world!');
 }
@@ -185,7 +185,7 @@ 
    Comments
    
 
 
    You can also make multiple-line comments, like this:
    
 
-
    function comment() {
+
    function comment() {
   /* This comment spans multiple lines. Notice
      that we don't need to end the comment until we're done. */
   console.log('Hello world!');
@@ -194,14 +194,14 @@ 
    Comments
    
 
 
    You can also use it in the middle of a line, if you wish, although this can make your code harder to read so it should be used with caution:
    
 
-
    function comment(x) {
+
    function comment(x) {
   console.log('Hello ' + x /* insert the value of x */ + ' !');
 }
 comment('world');
    
 
 
    In addition, you can use it to disable code to prevent it from running, by wrapping code in a comment, like this:
    
 
-
    function comment() {
+
    function comment() {
   /* console.log('Hello world!'); */
 }
 comment();
    
@@ -216,7 +216,7 @@ 
    Hashbang comments
    
 
 
    The hashbang comment specifies the path to a specific JavaScript interpreter that you want to use to execute the script. An example is as follows:
    
 
-
    #!/usr/bin/env node
+
    #!/usr/bin/env node
 
 console.log("Hello world");
 
    
@@ -330,14 +330,14 @@ 
    Reserved word usage
    
 
 
    Reserved words actually only apply to Identifiers (vs. IdentifierNames) . As described in es5.github.com/#A.1, these are all IdentifierNames which do not exclude ReservedWords.
    
 
-
    a.import
+
    a.import
 a['import']
 a = { import: 'test' }.
 
    
 
 
    On the other hand the following is illegal because it's an Identifier, which is an IdentifierName without the reserved words. Identifiers are used for FunctionDeclaration, FunctionExpression, VariableDeclaration and so on. IdentifierNames are used for MemberExpression, CallExpression and so on.
    
 
-
    function import() {} // Illegal.
    
+
    function import() {} // Illegal.
    
 
 
    Identifiers with special meanings
    
 
@@ -355,13 +355,13 @@ 
    Null literal
    
 
 
    See also {{jsxref("null")}} for more information.
    
 
-
    null
    
+
    null
    
 
 
    Boolean literal
    
 
 
    See also {{jsxref("Boolean")}} for more information.
    
 
-
    true
+
    true
 false
    
 
 
    Numeric literals
    
@@ -370,7 +370,7 @@ 
    Numeric literals
    
 
 
    Decimal
    
 
-
    1234567890
+
    1234567890
 42
 
 // Caution when using with a leading zero:
@@ -384,7 +384,7 @@ 
    Exponential
    
 
 
    The decimal exponential literal is specified by the following format: beN; where b is a base number (integer or floating), followed by e char (which serves as separator or exponent indicator) and N, which is exponent or power number – a signed integer (as per 2019 ECMA-262 specs): 
    
 
-
    0e-5   // => 0
+
    0e-5   // => 0
 0e+5   // => 0
 5e1    // => 50
 175e-2 // => 1.75
@@ -396,7 +396,7 @@ 
    Binary
    
 
 
    Binary number syntax uses a leading zero followed by a lowercase or uppercase Latin letter "B" (0b or 0B). Because this syntax is new in ECMAScript 2015, see the browser compatibility table, below. If the digits after the 0b are not 0 or 1, the following {{jsxref("SyntaxError")}} is thrown: "Missing binary digits after 0b".
    
 
-
    var FLT_SIGNBIT  = 0b10000000000000000000000000000000; // 2147483648
+
    var FLT_SIGNBIT  = 0b10000000000000000000000000000000; // 2147483648
 var FLT_EXPONENT = 0b01111111100000000000000000000000; // 2139095040
 var FLT_MANTISSA = 0B00000000011111111111111111111111; // 8388607
    
 
@@ -404,7 +404,7 @@ 
    Octal
    
 
 
    Octal number syntax uses a leading zero followed by a lowercase or uppercase Latin letter "O" (0o or 0O). Because this syntax is new in ECMAScript 2015, see the browser compatibility table, below. If the digits after the 0o are outside the range (01234567), the following {{jsxref("SyntaxError")}} is thrown: "Missing octal digits after 0o".
    
 
-
    var n = 0O755; // 493
+
    var n = 0O755; // 493
 var m = 0o644; // 420
 
 // Also possible with just a leading zero (see note about decimals above)
@@ -416,7 +416,7 @@ 
    Hexadecimal
    
 
 
    Hexadecimal number syntax uses a leading zero followed by a lowercase or uppercase Latin letter "X" (0x or 0X). If the digits after 0x are outside the range (0123456789ABCDEF), the following {{jsxref("SyntaxError")}} is thrown: "Identifier starts immediately after numeric literal".
    
 
-
    0xFFFFFFFFFFFFFFFFF // 295147905179352830000
+
    0xFFFFFFFFFFFFFFFFF // 295147905179352830000
 0x123456789ABCDEF   // 81985529216486900
 0XA                 // 10
 
    
@@ -425,7 +425,7 @@ 
    BigInt literal
    
 
 
    The {{jsxref("BigInt")}} type is a numeric primitive in JavaScript that can represent integers with arbitrary precision. BigInt literals are created by appending n to the end of an integer.
    
 
-
    123456789123456789n     // 123456789123456789
+
    123456789123456789n     // 123456789123456789
 0o777777777777n         // 68719476735
 0x123456789ABCDEFn      // 81985529216486895‬
 0b11101001010101010101n // 955733
@@ -433,12 +433,12 @@ 
    BigInt literal
    
 
 
    Note that legacy octal numbers with just a leading zero won't work for BigInt:
    
 
-
    // 0755n
+
    // 0755n
 // SyntaxError: invalid BigInt syntax
    
 
 
    For octal BigInt numbers, always use zero followed by the letter "o" (uppercase or lowercase):
    
 
-
    0o755n
    
+
    0o755n
    
 
 
    For more information about BigInt, see also JavaScript data structures.
    
 
@@ -446,7 +446,7 @@ 
    Numeric separators
    
 
 
    To improve readability for numeric literals, underscores (_, U+005F) can be used as separators:
    
 
-
    // separators in decimal numbers
+
    // separators in decimal numbers
 1_000_000_000_000
 1_050.95
 
@@ -465,7 +465,7 @@ 
    Numeric separators
    
 
 
    Note these limitations:
    
 
-
    // More than one underscore in a row is not allowed
+
    // More than one underscore in a row is not allowed
 100__000; // SyntaxError
 
 // Not allowed at the end of numeric literals
@@ -479,7 +479,7 @@ 
    Object literals
    
 
 
    See also {{jsxref("Object")}} and Object initializer for more information.
    
 
-
    var o = { a: 'foo', b: 'bar', c: 42 };
+
    var o = { a: 'foo', b: 'bar', c: 42 };
 
 // shorthand notation. New in ES2015
 var a = 'foo', b = 'bar', c = 42;
@@ -493,7 +493,7 @@ 
    Array literals
    
 
 
    See also {{jsxref("Array")}} for more information.
    
 
-
    [1954, 1974, 1990, 2014]
    
+
    [1954, 1974, 1990, 2014]
    
 
 
    String literals
    
 
@@ -509,14 +509,14 @@ 
    String literals
    
 
 
    Any code points may appear in the form of an escape sequence. String literals evaluate to ECMAScript String values. When generating these String values Unicode code points are UTF-16 encoded.
    
 
-
    'foo'
+
    'foo'
 "bar"
    
 
 
    Hexadecimal escape sequences
    
 
 
    Hexadecimal escape sequences consist of \x followed by exactly two hexadecimal digits representing a code unit or code point in the range 0x0000 to 0x00FF.
    
 
-
    '\xA9' // "©"
+
    '\xA9' // "©"
 
    
 
 
    Unicode escape sequences
    
@@ -525,7 +525,7 @@ 
    Unicode escape sequences
    
 
 
    See also {{jsxref("String.fromCharCode()")}} and {{jsxref("String.prototype.charCodeAt()")}}.
    
 
-
    '\u00A9' // "©" (U+A9)
    
+
    '\u00A9' // "©" (U+A9)
    
 
 
    Unicode code point escapes
    
 
@@ -533,7 +533,7 @@ 
    Unicode code point escapes
    
 
 
    See also {{jsxref("String.fromCodePoint()")}} and {{jsxref("String.prototype.codePointAt()")}}.
    
 
-
    '\u{2F804}' // CJK COMPATIBILITY IDEOGRAPH-2F804 (U+2F804)
+
    '\u{2F804}' // CJK COMPATIBILITY IDEOGRAPH-2F804 (U+2F804)
 
 // the same character represented as a surrogate pair
 '\uD87E\uDC04'
    
@@ -542,7 +542,7 @@ 
    Regular expression literals
    
 
 
    See also {{jsxref("RegExp")}} for more information.
    
 
-
    /ab+c/g
+
    /ab+c/g
 
 // An "empty" regular expression literal
 // The empty non-capturing group is necessary
@@ -553,7 +553,7 @@ 
    Template literals
    
 
 
    See also template strings for more information.
    
 
-
    `string text`
+
    `string text`
 
 `string text line 1
  string text line 2`
@@ -580,7 +580,7 @@ 
    Automatic semicolon insertion
    
 
 
    1. A semicolon is inserted before, when a Line terminator or "}" is encountered that is not allowed by the grammar.
    
 
-
    { 1
+
    { 1
 2 } 3
 
 // is transformed by ASI into:
@@ -592,7 +592,7 @@ 
    Automatic semicolon insertion
    
 
 
    Here ++ is not treated as a postfix operator applying to variable b, because a line terminator occurs between b and ++.
    
 
-
    a = b
+
    a = b
 ++c
 
 // is transformend by ASI into
@@ -612,7 +612,7 @@ 
    Automatic semicolon insertion
    
 	
  • module
    • 
 
 
-
    return
+
    return
 a + b
 
 // is transformed by ASI into
diff --git a/files/en-us/web/javascript/reference/operators/addition/index.html b/files/en-us/web/javascript/reference/operators/addition/index.html
index 61183544e355c02..58e1c4c18c2f29a 100644
--- a/files/en-us/web/javascript/reference/operators/addition/index.html
+++ b/files/en-us/web/javascript/reference/operators/addition/index.html
@@ -16,14 +16,14 @@
 
 
    Syntax
    
 
-
    Operator: x + y
+
    Operator: x + y
 
    
 
 
    Examples
    
 
 
    Numeric addition
    
 
-
    // Number + Number -> addition
+
    // Number + Number -> addition
 1 + 2 // 3
 
 // Boolean + Number -> addition
@@ -35,7 +35,7 @@ 
    Numeric addition
    
 
 
    String concatenation
    
 
-
    // String + String -> concatenation
+
    // String + String -> concatenation
 'foo' + 'bar' // "foobar"
 
 // Number + String -> concatenation
diff --git a/files/en-us/web/javascript/reference/operators/addition_assignment/index.html b/files/en-us/web/javascript/reference/operators/addition_assignment/index.html
index f696eda8655d06f..9b53a9386eacbc3 100644
--- a/files/en-us/web/javascript/reference/operators/addition_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/addition_assignment/index.html
@@ -19,14 +19,14 @@
 
 
    Syntax
    
 
-
    Operator: x += y
+
    Operator: x += y
 Meaning:  x  = x + y
    
 
 
    Examples
    
 
 
    Using addition assignment
    
 
-
    // Assuming the following variables
+
    // Assuming the following variables
 //  foo = 'foo'
 //  bar = 5
 //  baz = true
diff --git a/files/en-us/web/javascript/reference/operators/assignment/index.html b/files/en-us/web/javascript/reference/operators/assignment/index.html
index fe71e4863ddc2bd..35f234e7d3226bc 100644
--- a/files/en-us/web/javascript/reference/operators/assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/assignment/index.html
@@ -19,14 +19,14 @@
 
 
    Syntax
    
 
-
    Operator: x = y
+
    Operator: x = y
 
    
 
 
    Examples
    
 
 
    Simple assignment and chaining
    
 
-
    // Assuming the following variables
+
    // Assuming the following variables
 //  x = 5
 //  y = 10
 //  z = 25
diff --git a/files/en-us/web/javascript/reference/operators/async_function/index.html b/files/en-us/web/javascript/reference/operators/async_function/index.html
index 8407750d3bbfda6..4e050a912de6f75 100644
--- a/files/en-us/web/javascript/reference/operators/async_function/index.html
+++ b/files/en-us/web/javascript/reference/operators/async_function/index.html
@@ -20,7 +20,7 @@
 
 
    Syntax
    
 
-
    async function [name]([param1[, param2[, ..., paramN]]]) {
+
    async function [name]([param1[, param2[, ..., paramN]]]) {
    statements
 }
    
 
diff --git a/files/en-us/web/javascript/reference/operators/await/index.html b/files/en-us/web/javascript/reference/operators/await/index.html
index b7a23af1d8c7ec0..4b9deee5e663d93 100644
--- a/files/en-us/web/javascript/reference/operators/await/index.html
+++ b/files/en-us/web/javascript/reference/operators/await/index.html
@@ -14,7 +14,7 @@
 
 
    Syntax
    
 
-
    [rv] = await expression;
    
+
    [rv] = await expression;
    
 
 
    
   
    expression
    
@@ -55,7 +55,7 @@ 
    Awaiting a promise to be fulfilledIf a Promise is passed to an await expression, it waits for
   the Promise to be fulfilled and returns the fulfilled value.
    
 
-
    function resolveAfter2Seconds(x) {
+
    function resolveAfter2Seconds(x) {
   return new Promise(resolve => {
     setTimeout(() => {
       resolve(x);
@@ -76,7 +76,7 @@ 
    Thenable objects
    
 
    {{jsxref("Global_Objects/Promise/then", "Thenable objects")}} will be fulfilled just
   the same.
    
 
-
    async function f2() {
+
    async function f2() {
   const thenable = {
     then: function(resolve, _reject) {
       resolve('resolved!')
@@ -93,7 +93,7 @@ 
    Conversion to promise
    
 
    If the value is not a Promise, it converts the value to a resolved
   Promise, and waits for it.
    
 
-
    async function f3() {
+
    async function f3() {
   var y = await 20;
   console.log(y); // 20
 }
@@ -104,7 +104,7 @@ 
    Promise rejection
    
 
 
    If the Promise is rejected, the rejected value is thrown.
    
 
-
    async function f4() {
+
    async function f4() {
   try {
     var z = await Promise.reject(30);
   } catch(e) {
@@ -118,7 +118,7 @@ 
    Handling rejected promises
    
 
 
    Handle rejected Promise without try block.
    
 
-
    var response = await promisedFunction().catch((err) => { console.error(err); });
+
    var response = await promisedFunction().catch((err) => { console.error(err); });
 // response will be undefined if the promise is rejected
 
    
 
@@ -128,7 +128,7 @@ 
    Top level await
    
 
 
    Here is an example of a simple module using the Fetch API and specifying await within the export statement. Any modules that include this will wait for the fetch to resolve before running any code.
    
 
-
    +
     // fetch request
 const colors = fetch('../data/colors.json')
   .then(response => response.json());
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_and/index.html b/files/en-us/web/javascript/reference/operators/bitwise_and/index.html
index 12c2c507ac66873..e7fcf016171dfe8 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_and/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_and/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    a & b
+
    a & b
 
    
 
 
    Description
    
@@ -33,7 +33,7 @@ 
    Description
    
   example, the following integer with more than 32 bits will be converted to a 32 bit
   integer:
    
 
-
    Before: 11100110111110100000000000000110000000000001
+
    Before: 11100110111110100000000000000110000000000001
 After:              10100000000000000110000000000001
    
 
 
    Each bit in the first operand is paired with the corresponding bit in the second
@@ -77,7 +77,7 @@ 
    Description
    
   
 
 
-
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
+
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
     14 (base 10) = 00000000000000000000000000001110 (base 2)
                    --------------------------------
 14 & 9 (base 10) = 00000000000000000000000000001000 (base 2) = 8 (base 10)
@@ -90,7 +90,7 @@ 
    Examples
    
 
 
    Using bitwise AND
    
 
-
    // 5: 00000000000000000000000000000101
+
    // 5: 00000000000000000000000000000101
 // 2: 00000000000000000000000000000010
 5 & 2; // 0
    
 
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_and_assignment/index.html b/files/en-us/web/javascript/reference/operators/bitwise_and_assignment/index.html
index 84a599263a44ca8..b0bdd19a72d0685 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_and_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_and_assignment/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    Operator: x &= y
+
    Operator: x &= y
 Meaning:  x  = x & y
 
    
 
@@ -26,7 +26,7 @@ 
    Examples
    
 
 
    Using bitwise AND assignment
    
 
-
    let a = 5;
+
    let a = 5;
 // 5:     00000000000000000000000000000101
 // 2:     00000000000000000000000000000010
 a &= 2; // 0
    
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_not/index.html b/files/en-us/web/javascript/reference/operators/bitwise_not/index.html
index 25822c7cd8d7fe6..a573a07aa1cb7c1 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_not/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_not/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    ~a
+
    ~a
 
    
 
 
    Description
    
@@ -26,7 +26,7 @@ 
    Description
    
   example, the following integer with more than 32 bits will be converted to a 32 bit
   integer:
    
 
-
    Before: 11100110111110100000000000000110000000000001
+
    Before: 11100110111110100000000000000110000000000001
 After:              10100000000000000110000000000001
    
 
 
    Each bit in the first operand is paired with the corresponding bit in the second
@@ -57,7 +57,7 @@ 
    Description
    
   
 
 
-
     9 (base 10) = 00000000000000000000000000001001 (base 2)
+
     9 (base 10) = 00000000000000000000000000001001 (base 2)
                --------------------------------
 ~9 (base 10) = 11111111111111111111111111110110 (base 2) = -10 (base 10)
 
    
@@ -72,7 +72,7 @@ 
    Examples
    
 
 
    Using bitwise NOT
    
 
-
    ~0;  // -1
+
    ~0;  // -1
 ~-1; // 0
 ~1;  // -2
 
    
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_or/index.html b/files/en-us/web/javascript/reference/operators/bitwise_or/index.html
index 01ee68677dae319..8774fe9fcf1fdfe 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_or/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_or/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    a | b
+
    a | b
 
    
 
 
    Description
    
@@ -33,7 +33,7 @@ 
    Description
    
   example, the following integer with more than 32 bits will be converted to a 32 bit
   integer:
    
 
-
    Before: 11100110111110100000000000000110000000000001
+
    Before: 11100110111110100000000000000110000000000001
 After:              10100000000000000110000000000001
    
 
 
    Each bit in the first operand is paired with the corresponding bit in the second
@@ -77,7 +77,7 @@ 
    Description
    
   
 
 
-
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
+
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
     14 (base 10) = 00000000000000000000000000001110 (base 2)
                    --------------------------------
 14 | 9 (base 10) = 00000000000000000000000000001111 (base 2) = 15 (base 10)
@@ -90,7 +90,7 @@ 
    Examples
    
 
 
    Using bitwise OR
    
 
-
    // 9  (00000000000000000000000000001001)
+
    // 9  (00000000000000000000000000001001)
 // 14 (00000000000000000000000000001110)
 
 14 | 9;
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_or_assignment/index.html b/files/en-us/web/javascript/reference/operators/bitwise_or_assignment/index.html
index 94302efee3f83fd..0fb074942824198 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_or_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_or_assignment/index.html
@@ -24,14 +24,14 @@
 
 
    Syntax
    
 
-
    Operator: x |= y
+
    Operator: x |= y
 Meaning:  x = x | y
    
 
 
    Examples
    
 
 
    Using bitwise OR assignment
    
 
-
    let a = 5;
+
    let a = 5;
 a |= 2; // 7
 // 5: 00000000000000000000000000000101
 // 2: 00000000000000000000000000000010
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_xor/index.html b/files/en-us/web/javascript/reference/operators/bitwise_xor/index.html
index 991c6eaa2745259..018c48d75f2937e 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_xor/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_xor/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    a ^ b
+
    a ^ b
 
    
 
 
    Description
    
@@ -34,7 +34,7 @@ 
    Description
    
   example, the following integer with more than 32 bits will be converted to a 32 bit
   integer:
    
 
-
    Before: 11100110111110100000000000000110000000000001
+
    Before: 11100110111110100000000000000110000000000001
 After:              10100000000000000110000000000001
    
 
 
    Each bit in the first operand is paired with the corresponding bit in the second
@@ -78,7 +78,7 @@ 
    Description
    
   
 
 
-
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
+
    .    9 (base 10) = 00000000000000000000000000001001 (base 2)
     14 (base 10) = 00000000000000000000000000001110 (base 2)
                    --------------------------------
 14 ^ 9 (base 10) = 00000000000000000000000000000111 (base 2) = 7 (base 10)
@@ -91,7 +91,7 @@ 
    Examples
    
 
 
    Using bitwise XOR
    
 
-
    // 9  (00000000000000000000000000001001)
+
    // 9  (00000000000000000000000000001001)
 // 14 (00000000000000000000000000001110)
 
 14 ^ 9;
diff --git a/files/en-us/web/javascript/reference/operators/bitwise_xor_assignment/index.html b/files/en-us/web/javascript/reference/operators/bitwise_xor_assignment/index.html
index e796202b3e441c3..cea2bfe1e7ebb0b 100644
--- a/files/en-us/web/javascript/reference/operators/bitwise_xor_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/bitwise_xor_assignment/index.html
@@ -18,14 +18,14 @@
 
 
    Syntax
    
 
-
    Operator: x ^= y
+
    Operator: x ^= y
 Meaning:  x  = x ^ y
    
 
 
    Examples
    
 
 
    Using bitwise XOR assignment
    
 
-
    let a = 5;      // 00000000000000000000000000000101
+
    let a = 5;      // 00000000000000000000000000000101
 a ^= 3;         // 00000000000000000000000000000011
 
 console.log(a); // 00000000000000000000000000000110
diff --git a/files/en-us/web/javascript/reference/operators/class/index.html b/files/en-us/web/javascript/reference/operators/class/index.html
index 18b22da21c45960..e79a397646234fe 100644
--- a/files/en-us/web/javascript/reference/operators/class/index.html
+++ b/files/en-us/web/javascript/reference/operators/class/index.html
@@ -29,7 +29,7 @@
 
 
    Syntax
    
 
-
    const MyClass = class [className] [extends otherClassName] {
+
    const MyClass = class [className] [extends otherClassName] {
     // class body
 };
    
 
diff --git a/files/en-us/web/javascript/reference/operators/comma_operator/index.html b/files/en-us/web/javascript/reference/operators/comma_operator/index.html
index 9650c7a1f658c74..1233baa3610acb7 100644
--- a/files/en-us/web/javascript/reference/operators/comma_operator/index.html
+++ b/files/en-us/web/javascript/reference/operators/comma_operator/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    expr1, expr2, expr3...
    
+
    expr1, expr2, expr3...
    
 
 
    Parameters
    
 
@@ -51,7 +51,7 @@ 
    Examples
    
 
 
    The following code prints the values of the diagonal elements in the array:
    
 
-
    for (var i = 0, j = 9; i <= 9; i++, j--)
+
    for (var i = 0, j = 9; i <= 9; i++, j--)
   console.log('a[' + i + '][' + j + '] = ' + a[i][j]);
    
 
 
    Note that the comma operators in assignments may appear not to have the normal effect
@@ -62,7 +62,7 @@ 
    Examples
    
     href="/en-US/docs/Web/JavaScript/Reference/Operators/Operator_Precedence">operator
     precedence and associativity.
    
 
-
    var a, b, c;
+
    var a, b, c;
 
 a = b = 3, c = 4; // Returns 4 in console
 console.log(a); // 3 (left-most)
@@ -79,7 +79,7 @@ 
    Processing and then returning
    
   As stated, only the last element will be returned but all others are going to be
   evaluated as well. So, one could do:
    
 
-
    function myFunc() {
+
    function myFunc() {
   var x = 0;
 
   return (x += 1, x); // the same as return ++x;
diff --git a/files/en-us/web/javascript/reference/operators/conditional_operator/index.html b/files/en-us/web/javascript/reference/operators/conditional_operator/index.html
index 6edfcc6b2590317..f60ed3c5b5f11a2 100644
--- a/files/en-us/web/javascript/reference/operators/conditional_operator/index.html
+++ b/files/en-us/web/javascript/reference/operators/conditional_operator/index.html
@@ -35,7 +35,7 @@
 
    Syntax
    
 
 
    condition ? exprIfTrue : exprIfFalse
    
+    class="brush: js">condition ? exprIfTrue : exprIfFalse
    
 
 
    Parameters
    
 
@@ -64,7 +64,7 @@ 
    Examples
    
 
 
    A simple example
    
 
-
    var age = 26;
+
    var age = 26;
 var beverage = (age >= 21) ? "Beer" : "Juice";
 console.log(beverage); // "Beer"
 
    
@@ -73,7 +73,7 @@ 
    Handling null values
    
 
 
    One common usage is to handle a value that may be null:
    
 
-
    let greeting = person => {
+
    let greeting = person => {
     let name = person ? person.name : `stranger`
     return `Howdy, ${name}`
 }
@@ -87,7 +87,7 @@ 
    Conditional chains
    
 
    The ternary operator is right-associative, which means it can be "chained" in the
     following way, similar to an if … else if … else if … else chain:
    
 
-
    function example(…) {
+
    function example(…) {
     return condition1 ? value1
          : condition2 ? value2
          : condition3 ? value3
diff --git a/files/en-us/web/javascript/reference/operators/decrement/index.html b/files/en-us/web/javascript/reference/operators/decrement/index.html
index 8abc2165e2cde03..599f1f98df0d33e 100644
--- a/files/en-us/web/javascript/reference/operators/decrement/index.html
+++ b/files/en-us/web/javascript/reference/operators/decrement/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    Operator: x-- or --x
+
    Operator: x-- or --x
 
    
 
 
    Description
    
@@ -33,7 +33,7 @@ 
    Examples
    
 
 
    Postfix decrement
    
 
-
    let x = 3;
+
    let x = 3;
 y = x--;
 
 // y = 3
@@ -42,7 +42,7 @@ 
    Postfix decrement
    
 
 
    Prefix decrement
    
 
-
    let a = 2;
+
    let a = 2;
 b = --a;
 
 // a = 1
diff --git a/files/en-us/web/javascript/reference/operators/delete/index.html b/files/en-us/web/javascript/reference/operators/delete/index.html
index c9de01876fdff3d..2a4634c77910fad 100644
--- a/files/en-us/web/javascript/reference/operators/delete/index.html
+++ b/files/en-us/web/javascript/reference/operators/delete/index.html
@@ -22,12 +22,12 @@
 
 
    Syntax
    
 
-
    delete expression 
    
+
    delete expression 
    
 
 
    Where expression should evaluate to a property reference, e.g.:
    
 
-
    delete object.property
+
    delete object.property
 delete object['property']
 
    
 
diff --git a/files/en-us/web/javascript/reference/operators/destructuring_assignment/index.html b/files/en-us/web/javascript/reference/operators/destructuring_assignment/index.html
index 9525decc976edee..757bffe14fcd918 100644
--- a/files/en-us/web/javascript/reference/operators/destructuring_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/destructuring_assignment/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    let a, b, rest;
+
    let a, b, rest;
 [a, b] = [10, 20];
 console.log(a); // 10
 console.log(b); // 20
@@ -46,11 +46,11 @@ 
    Description
    
 
 
    The object and array literal expressions provide an easy way to create ad hoc packages of data.
    
 
-
    const x = [1, 2, 3, 4, 5];
    
+
    const x = [1, 2, 3, 4, 5];
    
 
 
    The destructuring assignment uses similar syntax, but on the left-hand side of the assignment to define what values to unpack from the sourced variable.
    
 
-
    const x = [1, 2, 3, 4, 5];
+
    const x = [1, 2, 3, 4, 5];
 const [y, z] = x;
 console.log(y); // 1
 console.log(z); // 2
@@ -64,7 +64,7 @@ 
    Array destructuring
    
 
 
    Basic variable assignment
    
 
-
    const foo = ['one', 'two', 'three'];
+
    const foo = ['one', 'two', 'three'];
 
 const [red, yellow, green] = foo;
 console.log(red); // "one"
@@ -76,7 +76,7 @@ 
    Assignment separate from declarati
 
 
    A variable can be assigned its value via destructuring separate from the variable's declaration.
    
 
-
    let a, b;
+
    let a, b;
 
 [a, b] = [1, 2];
 console.log(a); // 1
@@ -87,7 +87,7 @@ 
    Default values
    
 
 
    A variable can be assigned a default, in the case that the value unpacked from the array is undefined.
    
 
-
    let a, b;
+
    let a, b;
 
 [a=5, b=7] = [1];
 console.log(a); // 1
@@ -100,7 +100,7 @@ 
    Swapping variables
    
 
 
    Without destructuring assignment, swapping two values requires a temporary variable (or, in some low-level languages, the XOR-swap trick).
    
 
-
    let a = 1;
+
    let a = 1;
 let b = 3;
 
 [a, b] = [b, a];
@@ -119,7 +119,7 @@ 
    Parsing an array returned fro
 
 
    In this example, f() returns the values [1, 2] as its output, which can be parsed in a single line with destructuring.
    
 
-
    function f() {
+
    function f() {
   return [1, 2];
 }
 
@@ -133,7 +133,7 @@ 
    Ignoring some returned values
    
 
 
    You can ignore return values that you're not interested in:
    
 
-
    function f() {
+
    function f() {
   return [1, 2, 3];
 }
 
@@ -147,20 +147,20 @@ 
    Ignoring some returned values
    
 
 
    You can also ignore all returned values:
    
 
-
    [,,] = f();
+
    [,,] = f();
 
    
 
 
    Assigning the rest of an array to a variable
    
 
 
    When destructuring an array, you can unpack and assign the remaining part of it to a variable using the rest pattern:
    
 
-
    const [a, ...b] = [1, 2, 3];
+
    const [a, ...b] = [1, 2, 3];
 console.log(a); // 1
 console.log(b); // [2, 3]
    
 
 
    Be aware that a {{jsxref("SyntaxError")}} will be thrown if a trailing comma is used on the right-hand side of a rest element:
    
 
-
    const [a, ...b,] = [1, 2, 3];
+
    const [a, ...b,] = [1, 2, 3];
 
 // SyntaxError: rest element may not have a trailing comma
 // Always consider using rest operator as the last element
@@ -170,7 +170,7 @@ 
    Unpacking values from
 
 
    When the regular expression  exec() method finds a match, it returns an array containing first the entire matched portion of the string and then the portions of the string that matched each parenthesized group in the regular expression. Destructuring assignment allows you to unpack the parts out of this array easily, ignoring the full match if it is not needed.
    
 
-
    function parseProtocol(url) {
+
    function parseProtocol(url) {
   const parsedURL = /^(\w+)\:\/\/([^\/]+)\/(.*)$/.exec(url);
   if (!parsedURL) {
     return false;
@@ -191,7 +191,7 @@ 
    Object destructuring
    
 
 
    Basic assignment
    
 
-
    const user = {
+
    const user = {
     id: 42,
     is_verified: true
 };
@@ -206,7 +206,7 @@ 
    Assignment without declaration
    
 
 
    A variable can be assigned its value with destructuring separate from its declaration.
    
 
-
    let a, b;
+
    let a, b;
 
 ({a, b} = {a: 1, b: 2});
    
 
@@ -224,7 +224,7 @@ 
    Assigning to new variable names
    
 
 
    A property can be unpacked from an object and assigned to a variable with a different name than the object property.
    
 
-
    const o = {p: 42, q: true};
+
    const o = {p: 42, q: true};
 const {p: foo, q: bar} = o;
 
 console.log(foo); // 42
@@ -236,7 +236,7 @@ 
    Default values
    
 
 
    A variable can be assigned a default, in the case that the value unpacked from the object is undefined.
    
 
-
    const {a = 10, b = 5} = {a: 3};
+
    const {a = 10, b = 5} = {a: 3};
 
 console.log(a); // 3
 console.log(b); // 5
    
@@ -250,7 +250,7 @@ 
    Assigning
  
  • Assigned a default value in case the unpacked value is undefined.
    • 
 
 
-
    const {a: aa = 10, b: bb = 5} = {a: 3};
+
    const {a: aa = 10, b: bb = 5} = {a: 3};
 
 console.log(aa); // 3
 console.log(bb); // 5
@@ -258,7 +258,7 @@ 
    Assigning
 
 
    Unpacking fields from objects passed as a function parameter
    
 
-
    const user = {
+
    const user = {
   id: 42,
   displayName: 'jdoe',
   fullName: {
@@ -282,7 +282,7 @@ 
    Unpacking
 
 
    Setting a function parameter's default value
    
 
-
    function drawChart({size = 'big', coords = {x: 0, y: 0}, radius = 25} = {}) {
+
    function drawChart({size = 'big', coords = {x: 0, y: 0}, radius = 25} = {}) {
   console.log(size, coords, radius);
   // do some chart drawing
 }
@@ -298,7 +298,7 @@ 
    Setting a function paramete
 
 
    Nested object and array destructuring
    
 
-
    const metadata = {
+
    const metadata = {
   title: 'Scratchpad',
   translations: [
     {
@@ -326,7 +326,7 @@ 
    Nested object and array destructu
 
 
    For of iteration and destructuring
    
 
-
    const people = [
+
    const people = [
   {
     name: 'Mike Smith',
     family: {
@@ -359,7 +359,7 @@ 
    Computed object proper
 
 
    Computed property names, like on object literals, can be used with destructuring.
    
 
-
    let key = 'z';
+
    let key = 'z';
 let {[key]: foo} = {z: 'bar'};
 
 console.log(foo); // "bar"
@@ -369,7 +369,7 @@ 
    Rest in Object Destructuring
    
 
 
    The Rest/Spread Properties for ECMAScript proposal (stage 4) adds the rest syntax to destructuring. Rest properties collect the remaining own enumerable property keys that are not already picked off by the destructuring pattern.
    
 
-
    let {a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40}
+
    let {a, b, ...rest} = {a: 10, b: 20, c: 30, d: 40}
 a; // 10
 b; // 20
 rest; // { c: 30, d: 40 }
    
@@ -378,7 +378,7 @@ 
    Invalid JavaScript ide
 
 
    Destructuring can be used with property names that are not valid JavaScript {{glossary("Identifier", "identifiers")}} by providing an alternative identifier that is valid.
    
 
-
    const foo = { 'fizz-buzz': true };
+
    const foo = { 'fizz-buzz': true };
 const { 'fizz-buzz': fizzBuzz } = foo;
 
 console.log(fizzBuzz); // "true"
@@ -388,7 +388,7 @@ 
    Combined Array and Object Destr
 
 
    Array and Object destructuring can be combined. Say you want the third element in the array props below, and then you want the name property in the object, you can do the following:
    
 
-
    const props = [
+
    const props = [
   { id: 1, name: 'Fizz'},
   { id: 2, name: 'Buzz'},
   { id: 3, name: 'FizzBuzz'}
@@ -403,7 +403,7 @@ 
    The p
 
 
    When deconstructing an object, if a property is not accessed in itself, it will continue to look up along the prototype chain.
    
 
-
    let obj = {self: '123'};
+
    let obj = {self: '123'};
 obj.__proto__.prot = '456';
 const {self, prot} = obj;
 // self "123"
diff --git a/files/en-us/web/javascript/reference/operators/division/index.html b/files/en-us/web/javascript/reference/operators/division/index.html
index 0cec1160a52d24e..3d6e242c451af3a 100644
--- a/files/en-us/web/javascript/reference/operators/division/index.html
+++ b/files/en-us/web/javascript/reference/operators/division/index.html
@@ -16,14 +16,14 @@
 
 
    Syntax
    
 
-
    Operator: x / y
+
    Operator: x / y
 
    
 
 
    Examples
    
 
 
    Basic division
    
 
-
    1 / 2              // 0.5
+
    1 / 2              // 0.5
 
 Math.floor(3 / 2) // 1
 
@@ -32,7 +32,7 @@ 
    Basic division
    
 
 
    Division by zero
    
 
-
    2.0 / 0     // Infinity
+
    2.0 / 0     // Infinity
 
 2.0 / 0.0   // Infinity, because 0.0 === 0
 
diff --git a/files/en-us/web/javascript/reference/operators/division_assignment/index.html b/files/en-us/web/javascript/reference/operators/division_assignment/index.html
index 12259b643200bfc..4a313e82bd697a6 100644
--- a/files/en-us/web/javascript/reference/operators/division_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/division_assignment/index.html
@@ -23,14 +23,14 @@
 
 
    Syntax
    
 
-
    Operator: x /= y
+
    Operator: x /= y
 Meaning:  x  = x / y
    
 
 
    Examples
    
 
 
    Using division assignment
    
 
-
    // Assuming the following variable and that all operations are run in order
+
    // Assuming the following variable and that all operations are run in order
 //  bar = 5
 
 bar /= 2     // 2.5
diff --git a/files/en-us/web/javascript/reference/operators/equality/index.html b/files/en-us/web/javascript/reference/operators/equality/index.html
index 2033193352d1ab9..be4dae976786dc8 100644
--- a/files/en-us/web/javascript/reference/operators/equality/index.html
+++ b/files/en-us/web/javascript/reference/operators/equality/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    x == y
+
    x == y
 
    
 
 
    Description
    
@@ -75,12 +75,12 @@ 
    Examples
    
 
 
    Comparison with no type conversion
    
 
-
    1 == 1;              // true
+
    1 == 1;              // true
 "hello" == "hello";  // true
    
 
 
    Comparison with type conversion
    
 
-
    "1" ==  1;            // true
+
    "1" ==  1;            // true
 1 == "1";             // true
 0 == false;           // true
 0 == null;            // false
@@ -96,7 +96,7 @@ 
    Comparison with type conversion
    
 
 
    Comparison of objects
    
 
-
    const object1 = {"key": "value"}
+
    const object1 = {"key": "value"}
 const object2 = {"key": "value"};
 
 object1 == object2 // false
@@ -110,7 +110,7 @@ 
    Comparing strings and String objec
   operands are String objects, then they are compared as objects and must
   reference the same object for comparison to succeed:
    
 
-
    const string1 = "hello";
+
    const string1 = "hello";
 const string2 = String("hello");
 const string3 = new String("hello");
 const string4 = new String("hello");
@@ -123,7 +123,7 @@ 
    Comparing strings and String objec
 
 
    Comparing Dates and strings
    
 
-
    const d = new Date('December 17, 1995 03:24:00');
+
    const d = new Date('December 17, 1995 03:24:00');
 const s = d.toString(); // for example: "Sun Dec 17 1995 03:24:00 GMT-0800 (Pacific Standard Time)"
 console.log(d == s);    //true
    
 
diff --git a/files/en-us/web/javascript/reference/operators/exponentiation/index.html b/files/en-us/web/javascript/reference/operators/exponentiation/index.html
index e2a89f3eb542a89..a482d500c5472f3 100644
--- a/files/en-us/web/javascript/reference/operators/exponentiation/index.html
+++ b/files/en-us/web/javascript/reference/operators/exponentiation/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    Operator: var1 ** var2
+
    Operator: var1 ** var2
 
    
 
 
    Description
    
@@ -36,7 +36,7 @@ 
    Description
    
   is, you cannot put a unary operator (+/-/~/!/delete/void/typeof)
   immediately before the base number; doing so will cause a SyntaxError.
    
 
-
    -2 ** 2;
+
    -2 ** 2;
 // 4 in Bash, -4 in other languages.
 // This is invalid in JavaScript, as the operation is ambiguous.
 
@@ -53,7 +53,7 @@ 
    Examples
    
 
 
    Basic exponentiation
    
 
-
    2 ** 3   // 8
+
    2 ** 3   // 8
 3 ** 2   // 9
 3 ** 2.5 // 15.588457268119896
 10 ** -1 // 0.1
@@ -62,7 +62,7 @@ 
    Basic exponentiation
    
 
 
    Associativity
    
 
-
    2 ** 3 ** 2   // 512
+
    2 ** 3 ** 2   // 512
 2 ** (3 ** 2) // 512
 (2 ** 3) ** 2 // 64
    
 
@@ -70,12 +70,12 @@ 
    Usage with unary operators
    
 
 
    To invert the sign of the result of an exponentiation expression:
    
 
-
    -(2 ** 2) // -4
+
    -(2 ** 2) // -4
 
    
 
 
    To force the base of an exponentiation expression to be a negative number:
    
 
-
    (-2) ** 2 // 4
+
    (-2) ** 2 // 4
 
    
 
 
    Specifications
    
diff --git a/files/en-us/web/javascript/reference/operators/exponentiation_assignment/index.html b/files/en-us/web/javascript/reference/operators/exponentiation_assignment/index.html
index dd690033550a09a..e0bb9805b8327cb 100644
--- a/files/en-us/web/javascript/reference/operators/exponentiation_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/exponentiation_assignment/index.html
@@ -18,14 +18,14 @@
 
 
    Syntax
    
 
-
    Operator: x **= y
+
    Operator: x **= y
 Meaning:  x  = x ** y
    
 
 
    Examples
    
 
 
    Using exponentiation assignment
    
 
-
    // Assuming the following variable
+
    // Assuming the following variable
 //  bar = 5
 
 bar **= 2     // 25
diff --git a/files/en-us/web/javascript/reference/operators/function/index.html b/files/en-us/web/javascript/reference/operators/function/index.html
index 6ae9649bb9ffb1f..ca2654600dd80cc 100644
--- a/files/en-us/web/javascript/reference/operators/function/index.html
+++ b/files/en-us/web/javascript/reference/operators/function/index.html
@@ -29,7 +29,7 @@ 
    Syntax
    
 
 
    The expression is not allowed at the start of a statement.
    
 
-
    function [name]([param1[, param2[, ..., paramN]]]) {
+
    function [name]([param1[, param2[, ..., paramN]]]) {
    statements
 }
    
 
diff --git a/files/en-us/web/javascript/reference/operators/function_star_/index.html b/files/en-us/web/javascript/reference/operators/function_star_/index.html
index 683eed0bbae1881..6b73f2a7663d5ac 100644
--- a/files/en-us/web/javascript/reference/operators/function_star_/index.html
+++ b/files/en-us/web/javascript/reference/operators/function_star_/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    function* [name]([param1[, param2[, ..., paramN]]]) {
+
    function* [name]([param1[, param2[, ..., paramN]]]) {
    statements
 }
    
 
diff --git a/files/en-us/web/javascript/reference/operators/greater_than/index.html b/files/en-us/web/javascript/reference/operators/greater_than/index.html
index c7c3460747561c2..b6ca44d9987361e 100644
--- a/files/en-us/web/javascript/reference/operators/greater_than/index.html
+++ b/files/en-us/web/javascript/reference/operators/greater_than/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    x > y
    
+
    x > y
    
 
 
    Description
    
 
@@ -30,13 +30,13 @@ 
    Examples
    
 
 
    String to string comparison
    
 
-
    console.log("a" > "b");        // false
+
    console.log("a" > "b");        // false
 console.log("a" > "a");        // false
 console.log("a" > "3");        // true
    
 
 
    String to number comparison
    
 
-
    console.log("5" > 3);          // true
+
    console.log("5" > 3);          // true
 console.log("3" > 3);          // false
 console.log("3" > 5);          // false
 
@@ -48,18 +48,18 @@ 
    String to number comparison
    
 
 
    Number to Number comparison
    
 
-
    console.log(5 > 3);            // true
+
    console.log(5 > 3);            // true
 console.log(3 > 3);            // false
 console.log(3 > 5);            // false
    
 
 
    Number to BigInt comparison
    
 
-
    console.log(5n > 3);           // true
+
    console.log(5n > 3);           // true
 console.log(3 > 5n);           // false
    
 
 
    Comparing Boolean, null, undefined, NaN
    
 
-
    console.log(true > false);     // true
+
    console.log(true > false);     // true
 console.log(false > true);     // false
 
 console.log(true > 0);         // true
diff --git a/files/en-us/web/javascript/reference/operators/greater_than_or_equal/index.html b/files/en-us/web/javascript/reference/operators/greater_than_or_equal/index.html
index 0f2d7ec2026f5b6..f858c2a56f36e2b 100644
--- a/files/en-us/web/javascript/reference/operators/greater_than_or_equal/index.html
+++ b/files/en-us/web/javascript/reference/operators/greater_than_or_equal/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
     x >= y
    
+
     x >= y
    
 
 
    Description
    
 
@@ -31,14 +31,14 @@ 
    Examples
    
 
 
    String to string comparison
    
 
-
    console.log("a" >= "b");     // false
+
    console.log("a" >= "b");     // false
 console.log("a" >= "a");     // true
 console.log("a" >= "3");     // true
 
    
 
 
    String to number comparison
    
 
-
    console.log("5" >= 3);       // true
+
    console.log("5" >= 3);       // true
 console.log("3" >= 3);       // true
 console.log("3" >= 5);       // false
 
@@ -47,19 +47,19 @@ 
    String to number comparison
    
 
 
    Number to Number comparison
    
 
-
    console.log(5 >= 3);         // true
+
    console.log(5 >= 3);         // true
 console.log(3 >= 3);         // true
 console.log(3 >= 5);         // false
    
 
 
    Number to BigInt comparison
    
 
-
    console.log(5n >= 3);        // true
+
    console.log(5n >= 3);        // true
 console.log(3 >= 3n);        // true
 console.log(3 >= 5n);        // false
    
 
 
    Comparing Boolean, null, undefined, NaN
    
 
-
    console.log(true >= false);  // true
+
    console.log(true >= false);  // true
 console.log(true >= true);   // true
 console.log(false >= true);  // false
 
diff --git a/files/en-us/web/javascript/reference/operators/grouping/index.html b/files/en-us/web/javascript/reference/operators/grouping/index.html
index eddfce5654d1570..e51251432774b00 100644
--- a/files/en-us/web/javascript/reference/operators/grouping/index.html
+++ b/files/en-us/web/javascript/reference/operators/grouping/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
     ( )
    
+
     ( )
    
 
 
    Description
    
 
@@ -34,7 +34,7 @@ 
    Using the grouping operator
    
 
    Overriding multiplication and division first, then addition and subtraction to evaluate
   addition first.
    
 
-
    var a = 1;
+
    var a = 1;
 var b = 2;
 var c = 3;
 
diff --git a/files/en-us/web/javascript/reference/operators/in/index.html b/files/en-us/web/javascript/reference/operators/in/index.html
index 98e67b8fea85fc3..b29a637fc65b17e 100644
--- a/files/en-us/web/javascript/reference/operators/in/index.html
+++ b/files/en-us/web/javascript/reference/operators/in/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    prop in object
    
+
    prop in object
    
 
 
    Parameters
    
 
@@ -37,7 +37,7 @@ 
    Basic usage
    
 
 
    The following examples show some uses of the in operator.
    
 
-
    // Arrays
+
    // Arrays
 let trees = ['redwood', 'bay', 'cedar', 'oak', 'maple']
 0 in trees        // returns true
 3 in trees        // returns true
@@ -59,7 +59,7 @@ 
    Basic usage
    
   example, you can specify a string created with the String constructor, but
   you cannot specify a string literal.
    
 
-
    let color1 = new String('green')
+
    let color1 = new String('green')
 'length' in color1 // returns true
 
 let color2 = 'coral'
@@ -74,7 +74,7 @@ 
    Using in wit
   delete
   operator, the in operator returns false for that property.
    
 
-
    let mycar = {make: 'Honda', model: 'Accord', year: 1998}
+
    let mycar = {make: 'Honda', model: 'Accord', year: 1998}
 delete mycar.make
 'make' in mycar   // returns false
 
@@ -86,12 +86,12 @@ 
    Using in wit
 
    If you set a property to {{jsxref("Global_Objects/undefined", "undefined")}} but do not
   delete it, the in operator returns true for that property.
    
 
-
    let mycar = {make: 'Honda', model: 'Accord', year: 1998}
+
    let mycar = {make: 'Honda', model: 'Accord', year: 1998}
 mycar.make = undefined
 'make' in mycar   // returns true
 
    
 
-
    let trees = new Array('redwood', 'bay', 'cedar', 'oak', 'maple')
+
    let trees = new Array('redwood', 'bay', 'cedar', 'oak', 'maple')
 trees[3] = undefined
 3 in trees  // returns true
 
    
@@ -99,7 +99,7 @@ 
    Using in wit
 
    The in operator will return false for empty array slots. Even
   if accessing it directly returns undefined.
    
 
-
    let empties = new Array(3)
+
    let empties = new Array(3)
 empties[2] // returns undefined
 2 in empties  // returns false
 
    
@@ -107,7 +107,7 @@ 
    Using in wit
 
    To avoid this, make sure a new array is always filled with non-empty values or not
   write to indexes past the end of array.
    
 
-
    let empties = new Array(3).fill(undefined)
+
    let empties = new Array(3).fill(undefined)
 2 in empties  // returns true
 
    
 
@@ -117,7 +117,7 @@ 
    Inherited properties
    
   chain. (If you want to check for only non-inherited properties,
   use {{jsxref("Object.prototype.hasOwnProperty()")}} instead.)
    
 
-
    'toString' in {}  // returns true
+
    'toString' in {}  // returns true
 
    
 
 
    Specifications
    
diff --git a/files/en-us/web/javascript/reference/operators/increment/index.html b/files/en-us/web/javascript/reference/operators/increment/index.html
index 97d57fd28393643..8aaf005bf643d2c 100644
--- a/files/en-us/web/javascript/reference/operators/increment/index.html
+++ b/files/en-us/web/javascript/reference/operators/increment/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    Operator: x++ or ++x
+
    Operator: x++ or ++x
 
    
 
 
    Description
    
@@ -33,7 +33,7 @@ 
    Examples
    
 
 
    Postfix increment
    
 
-
    let x = 3;
+
    let x = 3;
 y = x++;
 
 // y = 3
@@ -42,7 +42,7 @@ 
    Postfix increment
    
 
 
    Prefix increment
    
 
-
    let a = 2;
+
    let a = 2;
 b = ++a;
 
 // a = 3
diff --git a/files/en-us/web/javascript/reference/operators/inequality/index.html b/files/en-us/web/javascript/reference/operators/inequality/index.html
index 94207bc915bedd3..d688fa5c7d4c260 100644
--- a/files/en-us/web/javascript/reference/operators/inequality/index.html
+++ b/files/en-us/web/javascript/reference/operators/inequality/index.html
@@ -19,7 +19,7 @@
 
 
    Syntax
    
 
-
    x != y
    
+
    x != y
    
 
 
    Description
    
 
@@ -27,7 +27,7 @@ 
    Description
    
   of the equality
   operator so the following two lines will always give the same result:
    
 
-
    x != y
+
    x != y
 
 !(x == y)
    
 
@@ -38,19 +38,19 @@ 
    Description
    
 
    Like the equality operator, the inequality operator will attempt to convert and compare
   operands of different types:
    
 
-
    3 != "3"; // false
    
+
    3 != "3"; // false
    
 
 
    To prevent this, and require that different types are considered to be different, use
   the strict
     inequality operator instead:
    
 
-
    3 !== "3"; // true
    
+
    3 !== "3"; // true
    
 
 
    Examples
    
 
 
    Comparison with no type conversion
    
 
-
    1 != 2;              // true
+
    1 != 2;              // true
 "hello" != "hola";   // true
 
 1 != 1;              // false
@@ -58,7 +58,7 @@ 
    Comparison with no type conversionComparison with type conversion
    
 
-
    "1" !=  1;            // false
+
    "1" !=  1;            // false
 1 != "1";             // false
 0 != false;           // false
 0 != null;            // true
@@ -74,7 +74,7 @@ 
    Comparison with type conversion
    
 
 
    Comparison of objects
    
 
-
    const object1 = {"key": "value"}
+
    const object1 = {"key": "value"}
 const object2 = {"key": "value"};
 
 object1 != object2 // true
diff --git a/files/en-us/web/javascript/reference/operators/instanceof/index.html b/files/en-us/web/javascript/reference/operators/instanceof/index.html
index 1305b87da91af22..83a17b0fd8f9fb9 100644
--- a/files/en-us/web/javascript/reference/operators/instanceof/index.html
+++ b/files/en-us/web/javascript/reference/operators/instanceof/index.html
@@ -21,7 +21,7 @@
 
    Syntax
    
 
 
    object instanceof constructor
    
+  class="brush: js">object instanceof constructor
    
 
 
    Parameters
    
 
@@ -38,7 +38,7 @@ 
    Description
    
   constructor.prototype in object's prototype chain.
 
    
 
-
    // defining constructors
+
    // defining constructors
 function C() {}
 function D() {}
 
@@ -122,7 +122,7 @@ 
    let simpleStr = 'This is a simple string'
+
    let simpleStr = 'This is a simple string'
 let myString  = new String()
 let newStr    = new String('String created with constructor')
 let myDate    = new Date()
@@ -153,7 +153,7 @@ 
    Demonstrating t
   the mycar object is of type Car and of type
   Object.
    
 
-
    function Car(make, model, year) {
+
    function Car(make, model, year) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -168,7 +168,7 @@ 
    Not an instanceof
    
 
    To test if an object is not an instanceof a specific constructor, you can
   do
    
 
-
    if (!(mycar instanceof Car)) {
+
    if (!(mycar instanceof Car)) {
   // Do something, like:
   // mycar = new Car(mycar)
 }
@@ -176,7 +176,7 @@ 
    Not an instanceof
    
 
 
    This is really different from:
    
 
-
    if (!mycar instanceof Car)
    
+
    if (!mycar instanceof Car)
    
 
 
    This will always be false. (!mycar will be evaluated before
   instanceof, so you always try to know if a boolean is an instance of
diff --git a/files/en-us/web/javascript/reference/operators/left_shift/index.html b/files/en-us/web/javascript/reference/operators/left_shift/index.html
index d29402eb857a5b1..265845a4daf4a89 100644
--- a/files/en-us/web/javascript/reference/operators/left_shift/index.html
+++ b/files/en-us/web/javascript/reference/operators/left_shift/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    a << b
+
    a << b
 
    
 
 
    Description
    
@@ -27,7 +27,7 @@ 
    Description
    
 
 
    For example, 9 << 2 yields 36:
    
 
-
    .    9 (base 10): 00000000000000000000000000001001 (base 2)
+
    .    9 (base 10): 00000000000000000000000000001001 (base 2)
                   --------------------------------
 9 << 2 (base 10): 00000000000000000000000000100100 (base 2) = 36 (base 10)
 
    
@@ -39,7 +39,7 @@ 
    Examples
    
 
 
    Using left shift
    
 
-
    9 << 3; // 72
+
    9 << 3; // 72
 
 // 9 * (2 ** 3) = 9 * (8) = 72
 
    
diff --git a/files/en-us/web/javascript/reference/operators/left_shift_assignment/index.html b/files/en-us/web/javascript/reference/operators/left_shift_assignment/index.html
index b39d8e29b306efc..2f8f4f2c5d48670 100644
--- a/files/en-us/web/javascript/reference/operators/left_shift_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/left_shift_assignment/index.html
@@ -16,14 +16,14 @@
 
 
    Syntax
    
 
-
    Operator: x <<= y
+
    Operator: x <<= y
 Meaning:  x   = x << y
    
 
 
    Examples
    
 
 
    Using left shift assignment
    
 
-
    let a = 5;
+
    let a = 5;
 // 00000000000000000000000000000101
 
 a <<= 2; // 20
diff --git a/files/en-us/web/javascript/reference/operators/less_than/index.html b/files/en-us/web/javascript/reference/operators/less_than/index.html
index 564589bd5f06ebf..30d6ad7eb9dcfa2 100644
--- a/files/en-us/web/javascript/reference/operators/less_than/index.html
+++ b/files/en-us/web/javascript/reference/operators/less_than/index.html
@@ -15,7 +15,7 @@
 
 
    Syntax
    
 
-
     x < y
    
+
     x < y
    
 
 
    Description
    
 
@@ -40,13 +40,13 @@ 
    Examples
    
 
 
    String to string comparison
    
 
-
    console.log("a" < "b");        // true
+
    console.log("a" < "b");        // true
 console.log("a" < "a");        // false
 console.log("a" < "3");        // false
    
 
 
    String to number comparison
    
 
-
    console.log("5" < 3);          // false
+
    console.log("5" < 3);          // false
 console.log("3" < 3);          // false
 console.log("3" < 5);          // true
 
@@ -58,18 +58,18 @@ 
    String to number comparison
    
 
 
    Number to Number comparison
    
 
-
    console.log(5 < 3);            // false
+
    console.log(5 < 3);            // false
 console.log(3 < 3);            // false
 console.log(3 < 5);            // true
    
 
 
    Number to BigInt comparison
    
 
-
    console.log(5n < 3);           // false
+
    console.log(5n < 3);           // false
 console.log(3 < 5n);           // true
    
 
 
    Comparing Boolean, null, undefined, NaN
    
 
-
    console.log(true < false);     // false
+
    console.log(true < false);     // false
 console.log(false < true);     // true
 
 console.log(0 < true);         // true
diff --git a/files/en-us/web/javascript/reference/operators/less_than_or_equal/index.html b/files/en-us/web/javascript/reference/operators/less_than_or_equal/index.html
index e67121778f12fd0..16e9fa7c01178ac 100644
--- a/files/en-us/web/javascript/reference/operators/less_than_or_equal/index.html
+++ b/files/en-us/web/javascript/reference/operators/less_than_or_equal/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
     x <= y
    
+
     x <= y
    
 
 
    Description
    
 
@@ -27,14 +27,14 @@ 
    Examples
    
 
 
    String to string comparison
    
 
-
    console.log("a" <= "b");     // true
+
    console.log("a" <= "b");     // true
 console.log("a" <= "a");     // true
 console.log("a" <= "3");     // false
 
    
 
 
    String to number comparison
    
 
-
    console.log("5" <= 3);       // false
+
    console.log("5" <= 3);       // false
 console.log("3" <= 3);       // true
 console.log("3" <= 5);       // true
 
@@ -43,19 +43,19 @@ 
    String to number comparison
    
 
 
    Number to Number comparison
    
 
-
    console.log(5 <= 3);         // false
+
    console.log(5 <= 3);         // false
 console.log(3 <= 3);         // true
 console.log(3 <= 5);         // true
    
 
 
    Number to BigInt comparison
    
 
-
    console.log(5n <= 3);        // false
+
    console.log(5n <= 3);        // false
 console.log(3 <= 3n);        // true
 console.log(3 <= 5n);        // true
    
 
 
    Comparing Boolean, null, undefined, NaN
    
 
-
    console.log(true <= false);  // false
+
    console.log(true <= false);  // false
 console.log(true <= true);   // true
 console.log(false <= true);  // true
 
diff --git a/files/en-us/web/javascript/reference/operators/logical_and/index.html b/files/en-us/web/javascript/reference/operators/logical_and/index.html
index 0a8ceb75a573778..5fd9fa2d2c3d96a 100644
--- a/files/en-us/web/javascript/reference/operators/logical_and/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_and/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    expr1 && expr2
+
    expr1 && expr2
 
    
 
 
    Description
    
@@ -74,7 +74,7 @@ 
    Short-circuit evaluation
    
   happens because the value of the operator is already determined after the evaluation of
   the first operand. See example:
    
 
-
    function A(){ console.log('called A'); return false; }
+
    function A(){ console.log('called A'); return false; }
 function B(){ console.log('called B'); return true; }
 
 console.log( A() && B() );
@@ -90,7 +90,7 @@ 
    Operator precedence
    
     precedence).
    
 
 
    true || false && false      // returns true, because && is executed first
+  class="brush: js">true || false && false      // returns true, because && is executed first
 (true || false) && false    // returns false, because operator precedence cannot apply
    
 
 
    Examples
    
@@ -100,7 +100,7 @@ 
    Using AND
    
 
    The following code shows examples of the && (logical AND)
   operator.
    
 
-
    a1 = true  && true       // t && t returns true
+
    a1 = true  && true       // t && t returns true
 a2 = true  && false      // t && f returns false
 a3 = false && true       // f && t returns false
 a4 = false && (3 == 4)   // f && f returns false
@@ -116,21 +116,21 @@ 
    Converting AND to OR
    
 
 
    The following operation involving booleans:
    
 
-
    bCondition1 && bCondition2
    
+
    bCondition1 && bCondition2
    
 
 
    is always equal to:
    
 
-
    !(!bCondition1 || !bCondition2)
    
+
    !(!bCondition1 || !bCondition2)
    
 
 
    Converting OR to AND
    
 
 
    The following operation involving booleans:
    
 
-
    bCondition1 || bCondition2
    
+
    bCondition1 || bCondition2
    
 
 
    is always equal to:
    
 
-
    !(!bCondition1 && !bCondition2)
    
+
    !(!bCondition1 && !bCondition2)
    
 
 
    Removing nested parentheses
    
 
@@ -140,11 +140,11 @@ 
    Removing nested parentheses
    
 
    The following composite operation involving booleans:
    
 
 
    bCondition1 || (bCondition2 && bCondition3)
    
+  class="brush: js">bCondition1 || (bCondition2 && bCondition3)
    
 
 
    is always equal to:
    
 
-
    bCondition1 || bCondition2 && bCondition3
    
+
    bCondition1 || bCondition2 && bCondition3
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/operators/logical_and_assignment/index.html b/files/en-us/web/javascript/reference/operators/logical_and_assignment/index.html
index 2e20dd42377a262..d94708836e339e0 100644
--- a/files/en-us/web/javascript/reference/operators/logical_and_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_and_assignment/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    expr1 &&= expr2
+
    expr1 &&= expr2
 
    
 
 
    Description
    
@@ -44,18 +44,18 @@ 
    Short-circuit evaluation
    
 
    Logical AND assignment short-circuits as well meaning that x &&= y
   is equivalent to:
    
 
-
    x && (x = y);
    
+
    x && (x = y);
    
 
 
    And not equivalent to the following which would always perform an assignment:
    
 
-
    x = x && y;
+
    x = x && y;
 
    
 
 
    Examples
    
 
 
    Using logical AND assignment
    
 
-
    let x = 0;
+
    let x = 0;
 let y = 1;
 
 x &&= 0; // 0
diff --git a/files/en-us/web/javascript/reference/operators/logical_not/index.html b/files/en-us/web/javascript/reference/operators/logical_not/index.html
index 979e73c3d8f8a3b..afb80fba39f3a3e 100644
--- a/files/en-us/web/javascript/reference/operators/logical_not/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_not/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    !expr
+
    !expr
 
    
 
 
    Description
    
@@ -63,7 +63,7 @@ 
    Using NOT
    
 
 
    The following code shows examples of the ! (logical NOT) operator.
    
 
-
    n1 = !true               // !t returns false
+
    n1 = !true               // !t returns false
 n2 = !false              // !f returns true
 n3 = !''                 // !f returns true
 n4 = !'Cat'              // !t returns false
    
@@ -79,7 +79,7 @@ 
    Double NOT (!!)
    
 
    The same conversion can be done through the {{jsxref("Global_Objects/Boolean/Boolean",
   "Boolean")}} function.
    
 
-
    n1 = !!true                   // !!truthy returns true
+
    n1 = !!true                   // !!truthy returns true
 n2 = !!{}                     // !!truthy returns true: any object is truthy...
 n3 = !!(new Boolean(false))   // ...even Boolean objects with a false .valueOf()!
 n4 = !!false                  // !!falsy returns false
@@ -90,11 +90,11 @@ 
    Converting between NOTs
    
 
 
    The following operation involving booleans:
    
 
-
    !!bCondition
    
+
    !!bCondition
    
 
 
    is always equal to:
    
 
-
    bCondition
    
+
    bCondition
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/operators/logical_nullish_assignment/index.html b/files/en-us/web/javascript/reference/operators/logical_nullish_assignment/index.html
index 03e251ed562934c..38d70303848dc5a 100644
--- a/files/en-us/web/javascript/reference/operators/logical_nullish_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_nullish_assignment/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    expr1 ??= expr2
+
    expr1 ??= expr2
 
    
 
 
    Description
    
@@ -49,18 +49,18 @@ 
    Short-circuit evaluation
    
 
    Logical nullish assignment short-circuits as well meaning that x ??= y is
   equivalent to:
    
 
-
    x ?? (x = y);
    
+
    x ?? (x = y);
    
 
 
    And not equivalent to the following which would always perform an assignment:
    
 
-
    x = x ?? y;
+
    x = x ?? y;
 
    
 
 
    Examples
    
 
 
    Using logical nullish assignment
    
 
-
    function config(options) {
+
    function config(options) {
   options.duration ??= 100;
   options.speed ??= 25;
   return options;
diff --git a/files/en-us/web/javascript/reference/operators/logical_or/index.html b/files/en-us/web/javascript/reference/operators/logical_or/index.html
index 86db3dc7426cbf3..5c0f20904592655 100644
--- a/files/en-us/web/javascript/reference/operators/logical_or/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_or/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    expr1 || expr2
+
    expr1 || expr2
 
    
 
 
    Description
    
@@ -74,7 +74,7 @@ 
    Short-circuit evaluation
    
   happens because the value of the operator is already determined after the evaluation of
   the first operand. See example:
    
 
-
    function A(){ console.log('called A'); return false; }
+
    function A(){ console.log('called A'); return false; }
 function B(){ console.log('called B'); return true; }
 
 console.log( B() || A() );
@@ -90,7 +90,7 @@ 
    Operator precedence
    
     precedence).
    
 
 
    true || false && false      // returns true, because || is executed first
+  class="brush: js">true || false && false      // returns true, because || is executed first
 (true || false) && false    // returns false, because operator precedence cannot apply
    
 
 
    Examples
    
@@ -99,7 +99,7 @@ 
    Using OR
    
 
 
    The following code shows examples of the || (logical OR) operator.
    
 
-
    o1 = true  || true       // t || t returns true
+
    o1 = true  || true       // t || t returns true
 o2 = false || true       // f || t returns true
 o3 = true  || false      // t || f returns true
 o4 = false || (3 == 4)   // f || f returns false
@@ -125,21 +125,21 @@ 
    Converting AND to OR
    
 
 
    The following operation involving booleans:
    
 
-
    bCondition1 && bCondition2
    
+
    bCondition1 && bCondition2
    
 
 
    is always equal to:
    
 
-
    !(!bCondition1 || !bCondition2)
    
+
    !(!bCondition1 || !bCondition2)
    
 
 
    Converting OR to AND
    
 
 
    The following operation involving booleans:
    
 
-
    bCondition1 || bCondition2
    
+
    bCondition1 || bCondition2
    
 
 
    is always equal to:
    
 
-
    !(!bCondition1 && !bCondition2)
    
+
    !(!bCondition1 && !bCondition2)
    
 
 
    Removing nested parentheses
    
 
@@ -149,12 +149,12 @@ 
    Removing nested parentheses
    
 
    The following composite operation involving booleans:
    
 
 
    bCondition1 && (bCondition2 || bCondition3)
    
+  class="brush: js">bCondition1 && (bCondition2 || bCondition3)
    
 
 
    is always equal to:
    
 
 
    !(!bCondition1 || !bCondition2 && !bCondition3)
    
+  class="brush: js">!(!bCondition1 || !bCondition2 && !bCondition3)
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/operators/logical_or_assignment/index.html b/files/en-us/web/javascript/reference/operators/logical_or_assignment/index.html
index eab55d56684474f..625155a5d5ffaaf 100644
--- a/files/en-us/web/javascript/reference/operators/logical_or_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/logical_or_assignment/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    expr1 ||= expr2
+
    expr1 ||= expr2
 
    
 
 
    Description
    
@@ -33,7 +33,7 @@ 
    Short-circuit evaluation
    
 
    The logical OR
   operator works like this:
    
 
-
    x || y;
+
    x || y;
 // returns x when x is truthy
 // returns y when x is not truthy
    
 
@@ -44,12 +44,12 @@ 
    Short-circuit evaluation
    
   the logical operation would evaluate the right-hand side. In other words,
   x ||= y is equivalent to:
    
 
-
    x || (x = y);
+
    x || (x = y);
 
    
 
 
    And not equivalent to the following which would always perform an assignment:
    
 
-
    x = x || y;
+
    x = x || y;
 
    
 
 
    Note that this behavior is different to mathematical and bitwise assignment operators.
@@ -62,7 +62,7 @@ 
    Setting default content
    
 
    If the "lyrics" element is empty, display a default value:
    
 
 
    document.getElementById('lyrics').textContent ||= 'No lyrics.'
    
+  class="brush: js">document.getElementById('lyrics').textContent ||= 'No lyrics.'
    
 
 
    Here the short-circuit is especially beneficial, since the element will not be updated
   unnecessarily and won't cause unwanted side-effects such as additional parsing or
diff --git a/files/en-us/web/javascript/reference/operators/multiplication/index.html b/files/en-us/web/javascript/reference/operators/multiplication/index.html
index 6f98cee5b4f23bf..623ef9861728cc9 100644
--- a/files/en-us/web/javascript/reference/operators/multiplication/index.html
+++ b/files/en-us/web/javascript/reference/operators/multiplication/index.html
@@ -15,25 +15,25 @@
 
 
    Syntax
    
 
-
    Operator: x * y
+
    Operator: x * y
 
    
 
 
    Examples
    
 
 
    Multiplication using numbers
    
 
-
     2 * 2      // 4
+
     2 * 2      // 4
 -2 * 2     // -4
 
    
 
 
    Multiplication with Infinity
    
 
-
    Infinity * 0         // NaN
+
    Infinity * 0         // NaN
 Infinity * Infinity  // Infinity
    
 
 
    Multiplication with non-numbers
    
 
-
    'foo' * 2 // NaN
    
+
    'foo' * 2 // NaN
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/operators/multiplication_assignment/index.html b/files/en-us/web/javascript/reference/operators/multiplication_assignment/index.html
index 3fa34472d277d60..86c5951f05920b4 100644
--- a/files/en-us/web/javascript/reference/operators/multiplication_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/multiplication_assignment/index.html
@@ -18,14 +18,14 @@
 
 
    Syntax
    
 
-
    Operator: x *= y
+
    Operator: x *= y
 Meaning:  x  = x * y
    
 
 
    Examples
    
 
 
    Using multiplication assignment
    
 
-
    // Assuming the following variable
+
    // Assuming the following variable
 //  bar = 5
 
 bar *= 2     // 10
diff --git a/files/en-us/web/javascript/reference/operators/new.target/index.html b/files/en-us/web/javascript/reference/operators/new.target/index.html
index 5889d79b2eb4626..f502962d46c425a 100644
--- a/files/en-us/web/javascript/reference/operators/new.target/index.html
+++ b/files/en-us/web/javascript/reference/operators/new.target/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    new.target
    
+
    new.target
    
 
 
    Description
    
 
diff --git a/files/en-us/web/javascript/reference/operators/new/index.html b/files/en-us/web/javascript/reference/operators/new/index.html
index cc42f4b4408ce7c..3fda202a7914e9b 100644
--- a/files/en-us/web/javascript/reference/operators/new/index.html
+++ b/files/en-us/web/javascript/reference/operators/new/index.html
@@ -19,7 +19,7 @@
 
    Syntax
    
 
 
    new constructor[([arguments])]
    
+  class="brush: js">new constructor[([arguments])]
    
 
 
    Parameters
    
 
@@ -52,13 +52,13 @@ 
    Description
    
 
      
   
    1. Define the object type by writing a function that specifies its name and properties.
     For example, a constructor function to create an object Foomight look like this:
-    
      function Foo(bar1, bar2) {
+    
      function Foo(bar1, bar2) {
       this.bar1 = bar1;
       this.bar2 = bar2;
     }
      
   
      2. 
   
    2. Create an instance of the object with new.
-    
      var myFoo = new Foo('Bar 1', 2021);
      
+    
      var myFoo = new Foo('Bar 1', 2021);
      
   
      3. 
 
    
 
@@ -102,7 +102,7 @@ 
    Description
    
     href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function">prototype.
 
    
 
-
    function Car() {}
+
    function Car() {}
 car1 = new Car();
 car2 = new Car();
 
@@ -133,7 +133,7 @@ 
    Object type and object instance
    
   called Car, and you want it to have properties for make, model, and year.
   To do this, you would write the following function:
    
 
-
    function Car(make, model, year) {
+
    function Car(make, model, year) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -142,7 +142,7 @@ 
    Object type and object instance
    
 
 
    Now you can create an object called myCar as follows:
    
 
-
    var myCar = new Car('Eagle', 'Talon TSi', 1993);
+
    var myCar = new Car('Eagle', 'Talon TSi', 1993);
 
    
 
 
    This statement creates myCar and assigns it the specified values for its
@@ -152,7 +152,7 @@ 
    Object type and object instance
    
 
    You can create any number of car objects by calls to new. For
   example:
    
 
-
    var kensCar = new Car('Nissan', '300ZX', 1992);
+
    var kensCar = new Car('Nissan', '300ZX', 1992);
 
    
 
 
    Object property that is itself
@@ -160,7 +160,7 @@ 
    Object property that is i
 
 
    Suppose you define an object called Person as follows:
    
 
-
    function Person(name, age, sex) {
+
    function Person(name, age, sex) {
   this.name = name;
   this.age = age;
   this.sex = sex;
@@ -169,14 +169,14 @@ 
    Object property that is i
 
 
    And then instantiate two new Person objects as follows:
    
 
-
    var rand = new Person('Rand McNally', 33, 'M');
+
    var rand = new Person('Rand McNally', 33, 'M');
 var ken = new Person('Ken Jones', 39, 'M');
 
    
 
 
    Then you can rewrite the definition of Car to include an
   owner property that takes a Person object, as follows:
    
 
-
    function Car(make, model, year, owner) {
+
    function Car(make, model, year, owner) {
   this.make = make;
   this.model = model;
   this.year = year;
@@ -186,7 +186,7 @@ 
    Object property that is i
 
 
    To instantiate the new objects, you then use the following:
    
 
-
    var car1 = new Car('Eagle', 'Talon TSi', 1993, rand);
+
    var car1 = new Car('Eagle', 'Talon TSi', 1993, rand);
 var car2 = new Car('Nissan', '300ZX', 1992, ken);
 
    
 
@@ -195,7 +195,7 @@ 
    Object property that is i
   parameters for the owners. To find out the name of the owner of car2, you
   can access the following property:
    
 
-
    car2.owner.name
+
    car2.owner.name
 
    
 
 
    Specifications
    
diff --git a/files/en-us/web/javascript/reference/operators/nullish_coalescing_operator/index.html b/files/en-us/web/javascript/reference/operators/nullish_coalescing_operator/index.html
index 629a292665fd259..482047f81e0aaf9 100644
--- a/files/en-us/web/javascript/reference/operators/nullish_coalescing_operator/index.html
+++ b/files/en-us/web/javascript/reference/operators/nullish_coalescing_operator/index.html
@@ -47,7 +47,7 @@
 
 
    Syntax
    
 
-
    leftExpr ?? rightExpr
+
    leftExpr ?? rightExpr
 
    
 
 
    Examples
    
@@ -57,7 +57,7 @@ 
    Using the nullish coalescing oper
 
    In this example, we will provide default values but keep values other than
   null or undefined.
    
 
-
    const nullValue = null;
+
    const nullValue = null;
 const emptyText = ""; // falsy
 const someNumber = 42;
 
@@ -77,7 +77,7 @@ 
    Assigning a default value to a
   (||):
 
    
 
-
    let foo;
+
    let foo;
 
 //  foo is never assigned any value so it is still undefined
 let someDummyText = foo || 'Hello!';
    
@@ -89,7 +89,7 @@ 
    Assigning a default value to a
   consequences if you consider 0, '', or NaN as
   valid values.
    
 
-
    let count = 0;
+
    let count = 0;
 let text = "";
 
 let qty = count || 42;
@@ -102,7 +102,7 @@ 
    Assigning a default value to a
   operand when the first one evaluates to either null or
   undefined (but no other falsy values):
    
 
-
    let myText = ''; // An empty string (which is also a falsy value)
+
    let myText = ''; // An empty string (which is also a falsy value)
 
 let notFalsyText = myText || 'Hello world';
 console.log(notFalsyText); // Hello world
@@ -117,7 +117,7 @@ 
    Short-circuiting
    
   if the left-hand side proves to be neither null nor undefined.
 
    
 
-
    function A() { console.log('A was called'); return undefined;}
+
    function A() { console.log('A was called'); return undefined;}
 function B() { console.log('B was called'); return false;}
 function C() { console.log('C was called'); return "foo";}
 
@@ -138,12 +138,12 @@ 
    No chaining with AND or OR operato
   SyntaxError
   will be thrown in such cases.
    
 
-
    null || undefined ?? "foo"; // raises a SyntaxError
+
    null || undefined ?? "foo"; // raises a SyntaxError
 true || undefined ?? "foo"; // raises a SyntaxError
    
 
 
    However, providing parenthesis to explicitly indicate precedence is correct:
    
 
-
    (null || undefined) ?? "foo"; // returns "foo"
+
    (null || undefined) ?? "foo"; // returns "foo"
 
    
 
 
    Relationship with the optional
@@ -155,7 +155,7 @@ 
    Relationship with th
     chaining operator (?.) which is useful to access a property of an
   object which may be null or undefined.
    
 
-
    let foo = { someFooProp: "hi" };
+
    let foo = { someFooProp: "hi" };
 
 console.log(foo.someFooProp?.toUpperCase() ?? "not available"); // "HI"
 console.log(foo.someBarProp?.toUpperCase() ?? "not available"); // "not available"
diff --git a/files/en-us/web/javascript/reference/operators/object_initializer/index.html b/files/en-us/web/javascript/reference/operators/object_initializer/index.html
index 9584c97187c2117..50f683321f02c42 100644
--- a/files/en-us/web/javascript/reference/operators/object_initializer/index.html
+++ b/files/en-us/web/javascript/reference/operators/object_initializer/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    let o = {}
+
    let o = {}
 let o = {a: 'foo', b: 42, c: {}}
 
 let a = 'foo', b = 42, c = {}
@@ -39,7 +39,7 @@ 
    New notations in ECMAScript 2015
    
 
 
    Please see the compatibility table for support for these notations. In non-supporting environments, these notations will lead to syntax errors.
    
 
-
    // Shorthand property names (ES2015)
+
    // Shorthand property names (ES2015)
 let a = 'foo', b = 42, c = {};
 let o = {a, b, c}
 
@@ -77,13 +77,13 @@ 
    Creating objects
    
 
 
    An empty object with no properties can be created like this:
    
 
-
    let object = {}
    
+
    let object = {}
    
 
 
    However, the advantage of the literal or initializer notation is, that you are able to quickly create objects with properties inside the curly braces. You notate a list of key: value pairs delimited by commas.
    
 
 
    The following code creates an object with three properties and the keys are "foo", "age" and "baz". The values of these keys are a string "bar", the number 42, and another object.
    
 
-
    let object = {
+
    let object = {
   foo: 'bar',
   age: 42,
   baz: {myProp: 12}
@@ -93,7 +93,7 @@ 
    Accessing properties
    
 
 
    Once you have created an object, you might want to read or change them. Object properties can be accessed by using the dot notation or the bracket notation. (See property accessors for detailed information.)
    
 
-
    object.foo // "bar"
+
    object.foo // "bar"
 object['age'] // 42
 
 object.foo = 'baz'
@@ -103,7 +103,7 @@ 
    Property definitions
    
 
 
    We have already learned how to notate properties using the initializer syntax. Oftentimes, there are variables in your code that you would like to put into an object. You will see code like this:
    
 
-
    let a = 'foo',
+
    let a = 'foo',
     b = 42,
     c = {};
 
@@ -115,7 +115,7 @@ 
    Property definitions
    
 
 
    With ECMAScript 2015, there is a shorter notation available to achieve the same:
    
 
-
    let a = 'foo',
+
    let a = 'foo',
     b = 42,
     c = {};
 
@@ -130,13 +130,13 @@ 
    Duplicate property names
    
 
 
    When using the same name for your properties, the second property will overwrite the first.
    
 
-
    let a = {x: 1, x: 2}
+
    let a = {x: 1, x: 2}
 console.log(a) // {x: 2}
 
    
 
 
    In ECMAScript 5 strict mode code, duplicate property names were considered a {{jsxref("SyntaxError")}}.  With the introduction of computed property names making duplication possible at runtime, ECMAScript 2015 has removed this restriction.
    
 
-
    function haveES2015DuplicatePropertySemantics() {
+
    function haveES2015DuplicatePropertySemantics() {
   'use strict';
   try {
     ({prop: 1, prop: 2});
@@ -153,7 +153,7 @@ 
    Method definitions
    
 
 
    A property of an object can also refer to a function or a getter or setter method.
    
 
-
    let o = {
+
    let o = {
   property: function (parameters) {},
   get property() {},
   set property(value) {}
@@ -161,14 +161,14 @@ 
    Method definitions
    
 
 
    In ECMAScript 2015, a shorthand notation is available, so that the keyword "function" is no longer necessary.
    
 
-
    // Shorthand method names (ES2015)
+
    // Shorthand method names (ES2015)
 let o = {
   property(parameters) {},
 }
    
 
 
    In ECMAScript 2015, there is a way to concisely define properties whose values are generator functions:
    
 
-
    let o = {
+
    let o = {
   *generator() {
     ...........
   }
@@ -176,7 +176,7 @@ 
    Method definitions
    
 
 
    Which is equivalent to this ES5-like notation (but note that ECMAScript 5 has no generators):
    
 
-
    let o = {
+
    let o = {
   generator: function* () {
     ...........
   }
@@ -190,7 +190,7 @@ 
    Computed property names
    
 
 
    Now you can use a similar syntax in object literals, too:
    
 
-
    // Computed property names (ES2015)
+
    // Computed property names (ES2015)
 let i = 0
 let a = {
   ['foo' + ++i]: i,
@@ -223,7 +223,7 @@ 
    Spread properties
    
 
 
    Shallow-cloning (excluding prototype) or merging objects is now possible using a shorter syntax than {{jsxref("Object.assign()")}}.
    
 
-
    let obj1 = { foo: 'bar', x: 42 }
+
    let obj1 = { foo: 'bar', x: 42 }
 let obj2 = { foo: 'baz', y: 13 }
 
 let clonedObj = { ...obj1 }
@@ -240,7 +240,7 @@ 
    Prototype mutation
    
 
 
    A property definition of the form __proto__: value or "__proto__": value does not create a property with the name __proto__.  Instead, if the provided value is an object or null, it changes the [[Prototype]] of the created object to that value.  (If the value is not an object or null, the object is not changed.)
    
 
-
    let obj1 = {}
+
    let obj1 = {}
 assert(Object.getPrototypeOf(obj1) === Object.prototype)
 
 let obj2 = {__proto__: null}
@@ -259,7 +259,7 @@ 
    Prototype mutation
    
 
 
    Property definitions that do not use "colon" notation are not prototype mutations. They are property definitions that behave identically to similar definitions using any other name.
    
 
-
    let __proto__ = 'variable'
+
    let __proto__ = 'variable'
 
 let obj1 = {__proto__}
 assert(Object.getPrototypeOf(obj1) === Object.prototype)
diff --git a/files/en-us/web/javascript/reference/operators/operator_precedence/index.html b/files/en-us/web/javascript/reference/operators/operator_precedence/index.html
index e9e2d2369fb6762..3aee8f887b60e6a 100644
--- a/files/en-us/web/javascript/reference/operators/operator_precedence/index.html
+++ b/files/en-us/web/javascript/reference/operators/operator_precedence/index.html
@@ -25,7 +25,7 @@ 
    Precedence And Associativity
    
 
    Consider an expression describable by the representation below. Note that both
     OP1 and OP2 are fill-in-the-blanks for OPerators.
    
 
-
    a OP1 b OP2 c
    
+
    a OP1 b OP2 c
    
 
 
    If OP1 and OP2 have different
     precedence levels (see the table below), the operator with the highest precedence goes
@@ -33,7 +33,7 @@ 
    Precedence And Associativity
    
     precedence than addition and executed first, even though addition is written first in
     the code.
    
 
-
    console.log(3 + 10 * 2);   // logs 23
+
    console.log(3 + 10 * 2);   // logs 23
 console.log(3 + (10 * 2)); // logs 23 because parentheses here are superfluous
 console.log((3 + 10) * 2); // logs 26 because the parentheses change the order
 
    
@@ -44,7 +44,7 @@ 
    Precedence And Associativity
    
     a OP1 (b OP2 c). Assignment operators are
     right-associative, so you can write:
    
 
-
    a = b = 5; // same as writing a = (b = 5);
+
    a = b = 5; // same as writing a = (b = 5);
 
    
 
 
    with the expected result that a and b get the value 5. This
@@ -65,7 +65,7 @@ 
    Precedence And Associativity
    
         
         
             
-                
    +                
     function echo(name, num) {
     console.log("Evaluating the " + name + " side");
     return num;
@@ -75,7 +75,7 @@ 
    Precedence And Associativity
    
 
    
             
             
-                
    +                
     Evaluating the left side
 Evaluating the right side
 3
@@ -84,7 +84,7 @@ 
    Precedence And Associativity
    
         
         
             
-                
    +                
     function echo(name, num) {
     console.log("Evaluating the " + name + " side");
     return num;
@@ -93,7 +93,7 @@ 
    Precedence And Associativity
    
 console.log(echo("left", 2) ** echo("right", 3));
    
             
             
-                
    +                
     Evaluating the left side
 Evaluating the right side
 8
    
@@ -116,7 +116,7 @@ 
    Precedence And Associativity
    
         
         
             
-                
    +                
     function echo(name, num) {
     console.log("Evaluating the " + name + " side");
     return num;
@@ -126,7 +126,7 @@ 
    Precedence And Associativity
    
 
    
             
             
-                
    +                
     Evaluating the left side
 Evaluating the middle side
 Evaluating the right side
@@ -136,7 +136,7 @@ 
    Precedence And Associativity
    
         
         
             
-                
    +                
     function echo(name, num) {
     console.log("Evaluating the " + name + " side");
     return num;
@@ -146,7 +146,7 @@ 
    Precedence And Associativity
    
 
    
             
             
-                
    +                
     Evaluating the left side
 Evaluating the middle side
 Evaluating the right side
@@ -156,7 +156,7 @@ 
    Precedence And Associativity
    
         
         
             
-                
    +                
     function echo(name, num) {
     console.log("Evaluating the " + name + " side");
     return num;
@@ -165,7 +165,7 @@ 
    Precedence And Associativity
    
 console.log((echo("left", 2) ** echo("middle", 3)) ** echo("right", 2));
    
             
             
-                
    +                
     Evaluating the left side
 Evaluating the middle side
 Evaluating the right side
@@ -201,7 +201,7 @@ 
    Note on grouping and short-circui
     include logical conjunction ("AND"), nullish-coalescing, optional chaining, and the
     conditional operator. Some more examples follow.
    
 
-
    a || (b * c);  // evaluate `a` first, then produce `a` if `a` is "truthy"
+
    a || (b * c);  // evaluate `a` first, then produce `a` if `a` is "truthy"
 a && (b < c);  // evaluate `a` first, then produce `a` if `a` is "falsy"
 a ?? (b || c); // evaluate `a` first, then produce `a` if `a` is not `null` and not `undefined`
 a?.b.c;        // evaluate `a` first, then produce `undefined` if `a` is `null` or `undefined`
@@ -209,7 +209,7 @@ 
    Note on grouping and short-circui
 
 
    Examples
    
 
-
    3 > 2 && 2 > 1
+
    3 > 2 && 2 > 1
 // returns true
 
 3 > 2 > 1
diff --git a/files/en-us/web/javascript/reference/operators/optional_chaining/index.html b/files/en-us/web/javascript/reference/operators/optional_chaining/index.html
index 6c6234d715fc869..d8776b00ee4337b 100644
--- a/files/en-us/web/javascript/reference/operators/optional_chaining/index.html
+++ b/files/en-us/web/javascript/reference/operators/optional_chaining/index.html
@@ -39,7 +39,7 @@
 
 
    Syntax
    
 
-
    obj.val?.prop
+
    obj.val?.prop
 obj.val?.[expr]
 obj.arr?.[index]
 obj.func?.(args)
@@ -56,7 +56,7 @@ 
    Description
    
   references in between, such as:
    
 
 
    let nestedProp = obj.first && obj.first.second;
    
+  class="brush: js">let nestedProp = obj.first && obj.first.second;
    
 
 
    The value of obj.first is confirmed to be non-null (and
   non-undefined) before then accessing the value of
@@ -67,7 +67,7 @@ 
    Description
    
   explicitly test and short-circuit based on the state of obj.first before
   trying to access obj.first.second:
    
 
-
    let nestedProp = obj.first?.second;
    
+
    let nestedProp = obj.first?.second;
    
 
 
    By using the ?. operator instead of just ., JavaScript knows
   to implicitly check to be sure obj.first is not null or
@@ -78,7 +78,7 @@ 
    Description
    
 
    This is equivalent to the following, except that the temporary variable is in fact not
   created:
    
 
-
    let temp = obj.first;
+
    let temp = obj.first;
 let nestedProp = ((temp === null || temp === undefined) ? undefined : temp.second);
 
    
 
@@ -93,7 +93,7 @@ 
    Optional chaining with function c
   return undefined instead of throwing an exception if the method isn't
   found:
    
 
-
    let result = someInterface.customMethod?.();
    
+
    let result = someInterface.customMethod?.();
    
 
 
    
   
    Note: If there is a property with such a name and which is not a
@@ -119,7 +119,7 @@ 
    Dealing with optional
   functions unless you have tested their existence. Using ?., you can avoid
   this extra test:
    
 
-
    // Written as of ES2019
+
    // Written as of ES2019
 function doSomething(onContent, onError) {
   try {
     // ... do something with the data
@@ -132,7 +132,7 @@ 
    Dealing with optional
 }
 
    
 
-
    // Using optional chaining with function calls
+
    // Using optional chaining with function calls
 function doSomething(onContent, onError) {
   try {
    // ... do something with the data
@@ -150,20 +150,20 @@ 
    Optional chaining with expressionsthe
     bracket notation of the property accessor:
    
 
-
    let nestedProp = obj?.['prop' + 'Name'];
+
    let nestedProp = obj?.['prop' + 'Name'];
 
    
 
 
    Optional
   chaining not valid on the left-hand side of an assignment
    
 
 
    let object = {};
+  class="brush: js">let object = {};
 object?.property = 1; // Uncaught SyntaxError: Invalid left-hand side in assignment
    
 
 
    Array item access with optional chaining
 
    
 
-
    let arrayItem = arr?.[42];
    
+
    let arrayItem = arr?.[42];
    
 
 
    Examples
    
 
@@ -173,7 +173,7 @@ 
    Basic example
    
   bar in a map when there is no such member. The result is therefore
   undefined.
    
 
-
    let myMap = new Map();
+
    let myMap = new Map();
 myMap.set("foo", {name: "baz", desc: "inga"});
 
 let nameBar = myMap.get("bar")?.name;
    
@@ -183,7 +183,7 @@ 
    Short-circuiting evaluation
    
 
    When using optional chaining with expressions, if the left operand is null
   or undefined, the expression will not be evaluated. For instance:
    
 
-
    let potentiallyNullObj = null;
+
    let potentiallyNullObj = null;
 let x = 0;
 let prop = potentiallyNullObj?.[x++];
 
@@ -195,7 +195,7 @@ 
    Stacking the optional chaining
 
 
    With nested structures, it is possible to use optional chaining multiple times:
    
 
-
    let customer = {
+
    let customer = {
   name: "Carl",
   details: {
     age: 82,
@@ -215,7 +215,7 @@ 
    Combining with the nulli
   '', 1)}} may be used after optional chaining in order to build a default value when none
   was found:
    
 
-
    let customer = {
+
    let customer = {
   name: "Carl",
   details: { age: 82 }
 };
diff --git a/files/en-us/web/javascript/reference/operators/pipeline_operator/index.html b/files/en-us/web/javascript/reference/operators/pipeline_operator/index.html
index 461702ffbcd433c..7ff929569362daa 100644
--- a/files/en-us/web/javascript/reference/operators/pipeline_operator/index.html
+++ b/files/en-us/web/javascript/reference/operators/pipeline_operator/index.html
@@ -16,16 +16,16 @@
   calls in a readable manner. The result is syntactic sugar in which a function call with
   a single argument can be written like this:
    
 
-
    let url = "%21" |> decodeURI;
    
+
    let url = "%21" |> decodeURI;
    
 
 
    The equivalent call in traditional syntax looks like this:
    
 
-
    let url = decodeURI("%21");
+
    let url = decodeURI("%21");
 
    
 
 
    Syntax
    
 
-
    expression |> function
+
    expression |> function
 
    
 
 
    The value of the specified expression is passed into the
@@ -46,7 +46,7 @@ 
    Chaining function calls
    
 
 
    The pipeline operator can improve readability when chaining several functions.
    
 
-
    const double = (n) => n * 2;
+
    const double = (n) => n * 2;
 const increment = (n) => n + 1;
 
 // without pipeline operator
diff --git a/files/en-us/web/javascript/reference/operators/property_accessors/index.html b/files/en-us/web/javascript/reference/operators/property_accessors/index.html
index c178bdb3bc6214f..ce23afbcb9051c8 100644
--- a/files/en-us/web/javascript/reference/operators/property_accessors/index.html
+++ b/files/en-us/web/javascript/reference/operators/property_accessors/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    object.property
+
    object.property
 object['property']
 
    
 
diff --git a/files/en-us/web/javascript/reference/operators/remainder/index.html b/files/en-us/web/javascript/reference/operators/remainder/index.html
index cde1f9b0bda6b96..d13da557aa68157 100644
--- a/files/en-us/web/javascript/reference/operators/remainder/index.html
+++ b/files/en-us/web/javascript/reference/operators/remainder/index.html
@@ -23,14 +23,14 @@
 
 
    Syntax
    
 
-
    Operator: var1 % var2
+
    Operator: var1 % var2
 
    
 
 
    Examples
    
 
 
    Remainder with positive dividend
    
 
-
     12 % 5  //  2
+
     12 % 5  //  2
  1 % -2 //  1
  1 % 2  //  1
  2 % 3  //  2
@@ -39,17 +39,17 @@ 
    Remainder with positive dividend
    
 
 
    Remainder with negative dividend
    
 
-
    -12 % 5 // -2
+
    -12 % 5 // -2
 -1 % 2  // -1
 -4 % 2  // -0
    
 
 
    Remainder with NaN
    
 
-
    NaN % 2 // NaN
    
+
    NaN % 2 // NaN
    
 
 
    Remainder with Infinity
    
 
-
    Infinity % 2 // NaN
+
    Infinity % 2 // NaN
 Infinity % 0 // NaN
 Infinity % Infinity // NaN
 
    
diff --git a/files/en-us/web/javascript/reference/operators/remainder_assignment/index.html b/files/en-us/web/javascript/reference/operators/remainder_assignment/index.html
index 5fcde7c1bf5ca06..5fd9f11e8d74e69 100644
--- a/files/en-us/web/javascript/reference/operators/remainder_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/remainder_assignment/index.html
@@ -17,14 +17,14 @@
 
 
    Syntax
    
 
-
    Operator: x %= y
+
    Operator: x %= y
 Meaning:  x  = x % y
    
 
 
    Examples
    
 
 
    Using remainder assignment
    
 
-
    // Assuming the following variable
+
    // Assuming the following variable
 //  bar = 5
 
 bar %= 2     // 1
diff --git a/files/en-us/web/javascript/reference/operators/right_shift/index.html b/files/en-us/web/javascript/reference/operators/right_shift/index.html
index 59400c317adbf9e..81c3e64d501bca1 100644
--- a/files/en-us/web/javascript/reference/operators/right_shift/index.html
+++ b/files/en-us/web/javascript/reference/operators/right_shift/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    a >> b
+
    a >> b
 
    
 
 
    Description
    
@@ -39,7 +39,7 @@ 
    Description
    
 
 
    For example, 9 >> 2 yields 2:
    
 
-
    .    9 (base 10): 00000000000000000000000000001001 (base 2)
+
    .    9 (base 10): 00000000000000000000000000001001 (base 2)
                   --------------------------------
 9 >> 2 (base 10): 00000000000000000000000000000010 (base 2) = 2 (base 10)
 
    
@@ -47,7 +47,7 @@ 
    Description
    
 
    Likewise, -9 >> 2 yields -3, because the sign is
   preserved:
    
 
-
    .    -9 (base 10): 11111111111111111111111111110111 (base 2)
+
    .    -9 (base 10): 11111111111111111111111111110111 (base 2)
                    --------------------------------
 -9 >> 2 (base 10): 11111111111111111111111111111101 (base 2) = -3 (base 10)
 
    
@@ -56,7 +56,7 @@ 
    Examples
    
 
 
    Using right shift
    
 
-
     9 >> 2; //  2
+
     9 >> 2; //  2
 -9 >> 2; // -3
 
    
 
diff --git a/files/en-us/web/javascript/reference/operators/right_shift_assignment/index.html b/files/en-us/web/javascript/reference/operators/right_shift_assignment/index.html
index e339463810f3f5f..3913189e133d415 100644
--- a/files/en-us/web/javascript/reference/operators/right_shift_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/right_shift_assignment/index.html
@@ -17,14 +17,14 @@
 
 
    Syntax
    
 
-
    Operator: x >>= y
+
    Operator: x >>= y
 Meaning:  x   = x >> y
    
 
 
    Examples
    
 
 
    Using right shift assignment
    
 
-
    let a = 5; //   (00000000000000000000000000000101)
+
    let a = 5; //   (00000000000000000000000000000101)
 a >>= 2;   // 1 (00000000000000000000000000000001)
 
 let b = -5; //  (-00000000000000000000000000000101)
diff --git a/files/en-us/web/javascript/reference/operators/spread_syntax/index.html b/files/en-us/web/javascript/reference/operators/spread_syntax/index.html
index 6ee7e201771fad3..dcc4732d4627af2 100644
--- a/files/en-us/web/javascript/reference/operators/spread_syntax/index.html
+++ b/files/en-us/web/javascript/reference/operators/spread_syntax/index.html
@@ -40,7 +40,7 @@ 
    Description
    
    would still work fine, except that all four would be passed, but only the first three
    would be used unless you added more arguments to the function, e.g.:
    
 
-
    function sum(x, y, z, n) {
+
    function sum(x, y, z, n) {
   return x + y + z + n;
 }
    
 
@@ -52,7 +52,7 @@ 
    Description
    
    all stored items plus a new addition. A very simple version of this kind of action
    could look like so:
    
 
-
    let numberStore = [0, 1, 2];
+
    let numberStore = [0, 1, 2];
 let newNumber = 12;
 numberStore = [...numberStore, newNumber];
    
 
@@ -63,18 +63,18 @@ 
    Syntax
    
 
 
    For function calls:
    
 
-
    myFunction(...iterableObj); // pass all elements of iterableObj as arguments to function myFunction
+
    myFunction(...iterableObj); // pass all elements of iterableObj as arguments to function myFunction
 
    
 
 
    For array literals or strings:
    
 
 
    [...iterableObj, '4', 'five', 6]; // combine two arrays by inserting all elements from iterableObj
    
+   class="brush: js">[...iterableObj, '4', 'five', 6]; // combine two arrays by inserting all elements from iterableObj
    
 
 
    For object literals (new in ECMAScript 2018):
    
 
 
    let objClone = { ...obj }; // pass all key:value pairs from an object 
    
+   class="brush: js">let objClone = { ...obj }; // pass all key:value pairs from an object 
    
 
 
    Rest syntax (parameters)
    
 
@@ -92,20 +92,20 @@ 
    Replace apply()
    
 
    It is common to use {{jsxref("Function.prototype.apply()")}} in cases where you want to
    use the elements of an array as arguments to a function.
    
 
-
    function myFunction(x, y, z) { }
+
    function myFunction(x, y, z) { }
 let args = [0, 1, 2];
 myFunction.apply(null, args);
    
 
 
    With spread syntax the above can be written as:
    
 
-
    function myFunction(x, y, z) { }
+
    function myFunction(x, y, z) { }
 let args = [0, 1, 2];
 myFunction(...args);
    
 
 
    Any argument in the argument list can use spread syntax, and the spread syntax can be
    used multiple times.
    
 
-
    function myFunction(v, w, x, y, z) { }
+
    function myFunction(v, w, x, y, z) { }
 let args = [0, 1];
 myFunction(-1, ...args, 2, ...[3]);
    
 
@@ -116,14 +116,14 @@ 
    Apply for new operator
    
    does a [[Call]] and not a [[Construct]]). However, an array
    can be easily used with new thanks to spread syntax:
    
 
-
    let dateFields = [1970, 0, 1];  // 1 Jan 1970
+
    let dateFields = [1970, 0, 1];  // 1 Jan 1970
 let d = new Date(...dateFields);
 
    
 
 
    To use new with an array of parameters without spread syntax, you would
    have to do it indirectly through partial application:
    
 
-
    function applyAndNew(constructor, args) {
+
    function applyAndNew(constructor, args) {
    function partial () {
       return constructor.apply(this, args);
    };
@@ -158,7 +158,7 @@ 
    A more powerful array literal
    
    {{jsxref("Array.prototype.splice", "splice()")}}, {{jsxref("Array.prototype.concat",
    "concat()")}}, etc. With spread syntax this becomes much more succinct:
    
 
-
    let parts = ['shoulders', 'knees'];
+
    let parts = ['shoulders', 'knees'];
 let lyrics = ['head', ...parts, 'and', 'toes'];
 //  ["head", "shoulders", "knees", "and", "toes"]
 
    
@@ -168,7 +168,7 @@ 
    A more powerful array literal
    
 
 
    Copy an array
    
 
-
    let arr = [1, 2, 3];
+
    let arr = [1, 2, 3];
 let arr2 = [...arr]; // like arr.slice()
 
 arr2.push(4);
@@ -182,7 +182,7 @@ 
    Copy an array
    
       the following example shows. (The same is true with {{jsxref("Object.assign()")}}
       and spread syntax.)
    
 
-   
    let a = [[1], [2], [3]];
+   
    let a = [[1], [2], [3]];
 let b = [...a];
 
 b.shift().shift();
@@ -199,7 +199,7 @@ 
    A better way to concatenate arrays{{jsxref("Array.prototype.concat()")}} is often used to concatenate an array to the end
    of an existing array. Without spread syntax, this is done as:
    
 
-
    let arr1 = [0, 1, 2];
+
    let arr1 = [0, 1, 2];
 let arr2 = [3, 4, 5];
 
 //  Append all items from arr2 onto arr1
@@ -207,7 +207,7 @@ 
    A better way to concatenate arraysWith spread syntax this becomes:
    
 
-
    let arr1 = [0, 1, 2];
+
    let arr1 = [0, 1, 2];
 let arr2 = [3, 4, 5];
 
 arr1 = [...arr1, ...arr2];
@@ -218,7 +218,7 @@ 
    A better way to concatenate arrays{{jsxref("Array.prototype.unshift()")}} is often used to insert an array of values at
    the start of an existing array. Without spread syntax, this is done as:
    
 
-
    let arr1 = [0, 1, 2];
+
    let arr1 = [0, 1, 2];
 let arr2 = [3, 4, 5];
 
 //  Prepend all items from arr2 onto arr1
@@ -228,7 +228,7 @@ 
    A better way to concatenate arraysWith spread syntax, this becomes:
    
 
-
    let arr1 = [0, 1, 2];
+
    let arr1 = [0, 1, 2];
 let arr2 = [3, 4, 5];
 
 arr1 = [...arr2, ...arr1];
@@ -251,7 +251,7 @@ 
    Spread in object literals
    
 
    Shallow-cloning (excluding prototype) or merging of objects is now possible using a
    shorter syntax than {{jsxref("Object.assign()")}}.
    
 
-
    let obj1 = { foo: 'bar', x: 42 };
+
    let obj1 = { foo: 'bar', x: 42 };
 let obj2 = { foo: 'baz', y: 13 };
 
 let clonedObj = { ...obj1 };
@@ -265,7 +265,7 @@ 
    Spread in object literals
    
 
 
    Note that you cannot replace or mimic the {{jsxref("Object.assign()")}} function:
    
 
-
    let obj1 = { foo: 'bar', x: 42 };
+
    let obj1 = { foo: 'bar', x: 42 };
 let obj2 = { foo: 'baz', y: 13 };
 const merge = ( ...objects ) => ( { ...objects } );
 
@@ -289,7 +289,7 @@ 
    Only for iterables
    
       href="/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/iterator">iterable
    objects:
    
 
-
    let obj = {'key1': 'value1'};
+
    let obj = {'key1': 'value1'};
 let array = [...obj]; // TypeError: obj is not iterable
 
    
 
diff --git a/files/en-us/web/javascript/reference/operators/strict_equality/index.html b/files/en-us/web/javascript/reference/operators/strict_equality/index.html
index 8252c5f0cf1c652..d7f2f6a8d519377 100644
--- a/files/en-us/web/javascript/reference/operators/strict_equality/index.html
+++ b/files/en-us/web/javascript/reference/operators/strict_equality/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    x === y
    
+
    x === y
    
 
 
    Description
    
 
@@ -60,7 +60,7 @@ 
    Examples
    
 
 
    Comparing operands of the same type
    
 
-
    console.log("hello" === "hello");   // true
+
    console.log("hello" === "hello");   // true
 console.log("hello" === "hola");    // false
 
 console.log(3 === 3);               // true
@@ -73,7 +73,7 @@ 
    Comparing operands of the same type
 
 
    Comparing operands of different types
    
 
-
    console.log("3" === 3);           // false
+
    console.log("3" === 3);           // false
 
 console.log(true === 1);          // false
 
@@ -81,7 +81,7 @@ 
    Comparing operands of different t
 
 
    Comparing objects
    
 
-
    const object1 = {
+
    const object1 = {
   name: "hello"
 }
 
diff --git a/files/en-us/web/javascript/reference/operators/strict_inequality/index.html b/files/en-us/web/javascript/reference/operators/strict_inequality/index.html
index c635ab96bd44586..d40a6d13e597786 100644
--- a/files/en-us/web/javascript/reference/operators/strict_inequality/index.html
+++ b/files/en-us/web/javascript/reference/operators/strict_inequality/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    x !== y
    
+
    x !== y
    
 
 
    Description
    
 
@@ -34,7 +34,7 @@ 
    Description
    
     href="/en-US/docs/Web/JavaScript/Reference/Operators/Strict_equality">strict
     equality operator so the following two lines will always give the same result:
    
 
-
    x !== y
+
    x !== y
 
 !(x === y)
    
 
@@ -45,13 +45,13 @@ 
    Description
    
 
    Like the strict equality operator, the strict inequality operator will always consider
   operands of different types to be different:
    
 
-
    3 !== "3"; // true
    
+
    3 !== "3"; // true
    
 
 
    Examples
    
 
 
    Comparing operands of the same type
    
 
-
    console.log("hello" !== "hello");   // false
+
    console.log("hello" !== "hello");   // false
 console.log("hello" !== "hola");    // true
 
 console.log(3 !== 3);               // false
@@ -64,7 +64,7 @@ 
    Comparing operands of the same type
 
 
    Comparing operands of different types
    
 
-
    console.log("3" !== 3);           // true
+
    console.log("3" !== 3);           // true
 
 console.log(true !== 1);          // true
 
@@ -72,7 +72,7 @@ 
    Comparing operands of different t
 
 
    Comparing objects
    
 
-
    const object1 = {
+
    const object1 = {
   name: "hello"
 }
 
diff --git a/files/en-us/web/javascript/reference/operators/subtraction/index.html b/files/en-us/web/javascript/reference/operators/subtraction/index.html
index 0a65a9049cc0377..cc34c29a738a681 100644
--- a/files/en-us/web/javascript/reference/operators/subtraction/index.html
+++ b/files/en-us/web/javascript/reference/operators/subtraction/index.html
@@ -16,19 +16,19 @@
 
 
    Syntax
    
 
-
    Operator: x - y
+
    Operator: x - y
 
    
 
 
    Examples
    
 
 
    Subtraction with numbers
    
 
-
    5 - 3     // 2
+
    5 - 3     // 2
 3 - 5     // -2
    
 
 
    Subtraction with non-numbers
    
 
-
    'foo' - 3 // NaN
    
+
    'foo' - 3 // NaN
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/javascript/reference/operators/subtraction_assignment/index.html b/files/en-us/web/javascript/reference/operators/subtraction_assignment/index.html
index 922fab4116abfcb..b8aa100249ab6c6 100644
--- a/files/en-us/web/javascript/reference/operators/subtraction_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/subtraction_assignment/index.html
@@ -17,14 +17,14 @@
 
 
    Syntax
    
 
-
    Operator: x -= y
+
    Operator: x -= y
 Meaning:  x  = x - y
    
 
 
    Examples
    
 
 
    Using subtraction assignment
    
 
-
    // Assuming the following variable
+
    // Assuming the following variable
 //  bar = 5
 
 bar -= 2     // 3
diff --git a/files/en-us/web/javascript/reference/operators/super/index.html b/files/en-us/web/javascript/reference/operators/super/index.html
index 88a661bfab4293b..8cf4939dc90c754 100644
--- a/files/en-us/web/javascript/reference/operators/super/index.html
+++ b/files/en-us/web/javascript/reference/operators/super/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    super([arguments]); // calls the parent constructor.
+
    super([arguments]); // calls the parent constructor.
 super.functionOnParent([arguments]);
 
    
 
@@ -44,7 +44,7 @@ 
    Using super in classes
    
   Here super() is called to avoid duplicating the constructor parts' that are
   common between Rectangle and Square.
    
 
-
    class Rectangle {
+
    class Rectangle {
   constructor(height, width) {
     this.name = 'Rectangle';
     this.height = height;
@@ -80,7 +80,7 @@ 
    Super-calling static methods
    
 
    You are also able to call super on static methods.
    
 
-
    class Rectangle {
+
    class Rectangle {
   static logNbSides() {
     return 'I have 4 sides';
   }
@@ -102,7 +102,7 @@ 
    Deleting super properties
   super.prop or super[expr] to delete a parent class' property,
   it will throw a {{jsxref("ReferenceError")}}.
    
 
-
    class Base {
+
    class Base {
   foo() {}
 }
 class Derived extends Base {
@@ -119,7 +119,7 @@ 
    super.propWhen defining non-writable properties with e.g. {{jsxref("Object.defineProperty")}},
   super cannot overwrite the value of the property.
    
 
-
    class X {
+
    class X {
   constructor() {
     Object.defineProperty(this, 'prop', {
       configurable: true,
@@ -154,7 +154,7 @@ 
    Using super.prop in ob
   prototype of obj2 to obj1, so that super is able
   to find method1 on obj1.
    
 
-
    var obj1 = {
+
    var obj1 = {
   method1() {
     console.log('method 1');
   }
diff --git a/files/en-us/web/javascript/reference/operators/this/index.html b/files/en-us/web/javascript/reference/operators/this/index.html
index 7b7e00f3deeec15..b547704b237c9ff 100644
--- a/files/en-us/web/javascript/reference/operators/this/index.html
+++ b/files/en-us/web/javascript/reference/operators/this/index.html
@@ -36,7 +36,7 @@
 
 
    Syntax
    
 
-
    this
    
+
    this
    
 
 
    Value
    
 
diff --git a/files/en-us/web/javascript/reference/operators/typeof/index.html b/files/en-us/web/javascript/reference/operators/typeof/index.html
index b93557b00186db3..3429fa486192a2a 100644
--- a/files/en-us/web/javascript/reference/operators/typeof/index.html
+++ b/files/en-us/web/javascript/reference/operators/typeof/index.html
@@ -19,7 +19,7 @@ 
    Syntax
    
 
 
    The typeof operator is followed by its operand:
    
 
-
    typeof operand
+
    typeof operand
 typeof(operand)
 
    
 
@@ -100,7 +100,7 @@ 
    Examples
    
 
 
    Basic usage
    
 
-
    // Numbers
+
    // Numbers
 typeof 37 === 'number';
 typeof 3.14 === 'number';
 typeof(42) === 'number';
@@ -158,7 +158,7 @@ 
    Basic usage
    
 
 
    typeof null
    
 
-
    // This stands since the beginning of JavaScript
+
    // This stands since the beginning of JavaScript
 typeof null === 'object';
    
 
 
    In the first implementation of JavaScript, JavaScript values were represented as a type
@@ -173,7 +173,7 @@ 
    typeof null
    
 
 
    Using new operator
    
 
-
    // All constructor functions, with the exception of the Function constructor, will always be typeof 'object'
+
    // All constructor functions, with the exception of the Function constructor, will always be typeof 'object'
 let str = new String('String');
 let num = new Number(100);
 
@@ -187,7 +187,7 @@ 
    Using new operator
    
 
 
    Need for parentheses in Syntax
    
 
-
    // Parentheses can be used for determining the data type of expressions.
+
    // Parentheses can be used for determining the data type of expressions.
 let iData = 99;
 
 typeof iData + ' Wisen'; // 'number Wisen'
@@ -198,7 +198,7 @@ 
    Regular expressions
    
 
 
    Callable regular expressions were a non-standard addition in some browsers.
    
 
-
    typeof /s/ === 'function'; // Chrome 1-12 Non-conform to ECMAScript 5.1
+
    typeof /s/ === 'function'; // Chrome 1-12 Non-conform to ECMAScript 5.1
 typeof /s/ === 'object';   // Firefox 5+  Conform to ECMAScript 5.1
    
 
 
    Errors
    
@@ -217,7 +217,7 @@ 
    Errors
    
     dead zone" from the start of the block until the initialization is processed,
   during which, it will throw an error if accessed.
    
 
-
    typeof undeclaredVariable === 'undefined';
+
    typeof undeclaredVariable === 'undefined';
 
 typeof newLetVariable; // ReferenceError
 typeof newConstVariable; // ReferenceError
@@ -235,7 +235,7 @@ 
    Exceptions
    
   with type undefined.
    
 
 
    typeof document.all === 'undefined';
    
+  class="brush: js no-line-numbers">typeof document.all === 'undefined';
    
 
 
    Although the specification allows custom type tags for non-standard exotic objects, it
   requires those type tags to be different from the predefined ones. The case of
@@ -251,7 +251,7 @@ 
    Real-world usage
    
 
    For greater specificity in checking types, a typeof wrapper for usage in
   production-level code would be as follows (provided obj exists):
    
 
-
      function type(obj, fullClass) {
+
      function type(obj, fullClass) {
 
     // get toPrototypeString() of obj (handles all types)
     // Early JS environments return '[object Object]' for null, so it's best to directly check for it.
@@ -298,13 +298,13 @@ 
    IE-specific notes
    
 
 
    On IE 6, 7, and 8 a lot of host objects are objects and not functions. For example:
    
 
-
    typeof alert === 'object'
    
+
    typeof alert === 'object'
    
 
 
    Some non-standard IE properties return other values (tc39/ecma262#1440
     (comment)):
    
 
-
    typeof window.external.AddSearchProvider === "unknown";
+
    typeof window.external.AddSearchProvider === "unknown";
 typeof window.external.IsSearchProviderInstalled === "unknown";
    
 
 
    See also
    
diff --git a/files/en-us/web/javascript/reference/operators/unary_negation/index.html b/files/en-us/web/javascript/reference/operators/unary_negation/index.html
index f5589ecb4a02e4d..16fbfd63566e691 100644
--- a/files/en-us/web/javascript/reference/operators/unary_negation/index.html
+++ b/files/en-us/web/javascript/reference/operators/unary_negation/index.html
@@ -21,14 +21,14 @@
 
 
    Syntax
    
 
-
    Operator: -x
+
    Operator: -x
 
    
 
 
    Examples
    
 
 
    Negating numbers
    
 
-
    const x = 3;
+
    const x = 3;
 const y = -x;
 
 // y = -3
@@ -39,7 +39,7 @@ 
    Negating non-numbers
    
 
 
    The unary negation operator can convert a non-number into a number.
    
 
-
    const x = "4";
+
    const x = "4";
 const y = -x;
 
 // y = -4
diff --git a/files/en-us/web/javascript/reference/operators/unary_plus/index.html b/files/en-us/web/javascript/reference/operators/unary_plus/index.html
index 9072ef51a820600..09657640d16e4e9 100644
--- a/files/en-us/web/javascript/reference/operators/unary_plus/index.html
+++ b/files/en-us/web/javascript/reference/operators/unary_plus/index.html
@@ -16,7 +16,7 @@
 
 
    Syntax
    
 
-
    Operator: +x
+
    Operator: +x
 
    
 
 
    Description
    
@@ -34,7 +34,7 @@ 
    Examples
    
 
 
    Usage with numbers
    
 
-
    const x = 1;
+
    const x = 1;
 const y = -1;
 
 console.log(+x);
@@ -44,7 +44,7 @@ 
    Usage with numbers
    
 
 
    Usage with non-numbers
    
 
-
    +true  // 1
+
    +true  // 1
 +false // 0
 +null  // 0
 +function(val){ return val } // NaN
diff --git a/files/en-us/web/javascript/reference/operators/unsigned_right_shift/index.html b/files/en-us/web/javascript/reference/operators/unsigned_right_shift/index.html
index af970416942178d..37635c7a0f863f1 100644
--- a/files/en-us/web/javascript/reference/operators/unsigned_right_shift/index.html
+++ b/files/en-us/web/javascript/reference/operators/unsigned_right_shift/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    a >>> b
+
    a >>> b
 
    
 
 
    Description
    
@@ -42,7 +42,7 @@ 
    Description
    
   the same result. For example, 9 >>> 2 yields 2, the same as
   9 >> 2:
    
 
-
    .     9 (base 10): 00000000000000000000000000001001 (base 2)
+
    .     9 (base 10): 00000000000000000000000000001001 (base 2)
                    --------------------------------
 9 >>> 2 (base 10): 00000000000000000000000000000010 (base 2) = 2 (base 10)
 
    
@@ -51,7 +51,7 @@ 
    Description
    
   -9 >>> 2 yields 1073741821, which is different than
   -9 >> 2 (which yields -3):
    
 
-
    .     -9 (base 10): 11111111111111111111111111110111 (base 2)
+
    .     -9 (base 10): 11111111111111111111111111110111 (base 2)
                     --------------------------------
 -9 >>> 2 (base 10): 00111111111111111111111111111101 (base 2) = 1073741821 (base 10)
 
    
@@ -60,7 +60,7 @@ 
    Examples
    
 
 
    Using unsigned right shift
    
 
-
     9 >>> 2; // 2
+
     9 >>> 2; // 2
 -9 >>> 2; // 1073741821
 
    
 
diff --git a/files/en-us/web/javascript/reference/operators/unsigned_right_shift_assignment/index.html b/files/en-us/web/javascript/reference/operators/unsigned_right_shift_assignment/index.html
index 577fb3d4aadd451..30394666c98015d 100644
--- a/files/en-us/web/javascript/reference/operators/unsigned_right_shift_assignment/index.html
+++ b/files/en-us/web/javascript/reference/operators/unsigned_right_shift_assignment/index.html
@@ -20,14 +20,14 @@
 
 
    Syntax
    
 
-
    Operator: x >>>= y
+
    Operator: x >>>= y
 Meaning:  x    = x >>> y
    
 
 
    Examples
    
 
 
    Using unsigned right shift assignment
    
 
-
    let a = 5; //   (00000000000000000000000000000101)
+
    let a = 5; //   (00000000000000000000000000000101)
 a >>>= 2;  // 1 (00000000000000000000000000000001)
 
 let b = -5; // (-00000000000000000000000000000101)
diff --git a/files/en-us/web/javascript/reference/operators/void/index.html b/files/en-us/web/javascript/reference/operators/void/index.html
index 502d90e8fe04835..2584853b1a5138a 100644
--- a/files/en-us/web/javascript/reference/operators/void/index.html
+++ b/files/en-us/web/javascript/reference/operators/void/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    void expression
    
+
    void expression
    
 
 
    Description
    
 
@@ -35,7 +35,7 @@ 
    Description
    
   parentheses can help clarify the resolution of the expression following the
   void operator:
    
 
-
    void 2 == '2';   // (void 2) == '2', returns false
+
    void 2 == '2';   // (void 2) == '2', returns false
 void (2 == '2'); // void (2 == '2'), returns undefined
 
    
 
@@ -48,7 +48,7 @@ 
    Immediately Invoked Function E
     expression, void can be used to force the function
   keyword to be treated as an expression instead of a declaration.
    
 
-
    void function iife() {
+
    void function iife() {
 
   console.log("Executed!");
 
@@ -67,7 +67,7 @@ 
    JavaScript URIs
    
   value is {{jsxref("undefined")}}. The void operator can be used to return
   undefined. For example:
    
 
-
    <a href="javascript:void(0);">
+
    <a href="javascript:void(0);">
   Click here to do nothing
 </a>
 
@@ -89,7 +89,7 @@ 
    Non-leaking Arrow Functions
    
   intended to be used, it can be passed to the void operator to ensure that (for example)
   changing APIs do not cause arrow functions' behaviors to change.
    
 
-
    button.onclick = () => void doSomething();
    
+
    button.onclick = () => void doSomething();
    
 
 
    This ensures the return value of doSomething changing from
   undefined to true will not change the behavior of this code.
diff --git a/files/en-us/web/javascript/reference/operators/yield/index.html b/files/en-us/web/javascript/reference/operators/yield/index.html
index f06b312b2a652b9..63248afdb25f1c3 100644
--- a/files/en-us/web/javascript/reference/operators/yield/index.html
+++ b/files/en-us/web/javascript/reference/operators/yield/index.html
@@ -27,7 +27,7 @@
 
    Syntax
    
 
 
    [rv] = yield [expression]
    
+  class="brush: js">[rv] = yield [expression]
    
 
 
    
   
    expression {{optional_inline}}
    
@@ -99,7 +99,7 @@ 
    Using yield
    
 
 
    The following code is the declaration of an example generator function.
    
 
-
    function* countAppleSales () {
+
    function* countAppleSales () {
   let saleList = [3, 7, 5]
   for (let i = 0; i < saleList.length; i++) {
     yield saleList[i]
@@ -109,7 +109,7 @@ 
    Using yield
    
 
    Once a generator function is defined, it can be used by constructing an iterator as
   shown.
    
 
-
    let appleStore = countAppleSales()  // Generator { }
+
    let appleStore = countAppleSales()  // Generator { }
 console.log(appleStore.next())      // { value: 3, done: false }
 console.log(appleStore.next())      // { value: 7, done: false }
 console.log(appleStore.next())      // { value: 5, done: false }
@@ -119,7 +119,7 @@ 
    Using yield
    
   return value in this syntax [rv] = yield
   [expression]
    
 
-
    function* counter(value) {
+
    function* counter(value) {
  let step;
 
  while (true) {
diff --git a/files/en-us/web/javascript/reference/operators/yield_star_/index.html b/files/en-us/web/javascript/reference/operators/yield_star_/index.html
index 953a35fb71aaf5c..910b37dc073e98d 100644
--- a/files/en-us/web/javascript/reference/operators/yield_star_/index.html
+++ b/files/en-us/web/javascript/reference/operators/yield_star_/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
     yield* expression;
    
+
     yield* expression;
    
 
 
    
   
    expression
    
diff --git a/files/en-us/web/javascript/reference/statements/async_function/index.html b/files/en-us/web/javascript/reference/statements/async_function/index.html
index 56df73eb91b8b0b..a36d8ddd54090ad 100644
--- a/files/en-us/web/javascript/reference/statements/async_function/index.html
+++ b/files/en-us/web/javascript/reference/statements/async_function/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    async function name([param[, param[, ...param]]]) {
+
    async function name([param[, param[, ...param]]]) {
    statements
 }
 
    
@@ -70,14 +70,14 @@ 
    Description
    
 
 
    For example, the following:
    
 
-
    async function foo() {
+
    async function foo() {
    return 1
 }
 
    
 
 
    ...is equivalent to:
    
 
-
    function foo() {
+
    function foo() {
    return Promise.resolve(1)
 }
 
    
@@ -90,14 +90,14 @@ 
    Description
    
 
 
    For example:
    
 
-
    async function foo() {
+
    async function foo() {
    await 1
 }
 
    
 
 
    ...is equivalent to:
    
 
-
    function foo() {
+
    function foo() {
    return Promise.resolve(1).then(() => undefined)
 }
 
    
@@ -128,7 +128,7 @@ 
    Description
    
     current promise.
 
 
-
    async function foo() {
+
    async function foo() {
    const result1 = await new Promise((resolve) => setTimeout(() => resolve('1')))
    const result2 = await new Promise((resolve) => setTimeout(() => resolve('2')))
 }
@@ -144,7 +144,7 @@ 
    Description
    
   chain. This is because p2 will not be "wired into" the promise chain until
   control returns from p1.
    
 
-
    async function foo() {
+
    async function foo() {
    const p1 = new Promise((resolve) => setTimeout(() => resolve('1'), 1000))
    const p2 = new Promise((_,reject) => setTimeout(() => reject('2'), 500))
    const results = [await p1, await p2] // Do not do this! Use Promise.all or Promise.allSettled instead.
@@ -156,7 +156,7 @@ 
    Examples
    
 
 
    Async functions and execution order
    
 
-
    function resolveAfter2Seconds() {
+
    function resolveAfter2Seconds() {
   console.log("starting slow promise")
   return new Promise(resolve => {
     setTimeout(function() {
@@ -269,7 +269,7 @@ 
    Rewriting a Promise ch
 
    An API that returns a {{jsxref("Promise")}} will result in a promise chain, and it
   splits the function into many parts. Consider the following code:
    
 
-
    function getProcessedData(url) {
+
    function getProcessedData(url) {
   return downloadData(url) // returns a promise
     .catch(e => {
       return downloadFallbackData(url)  // returns a promise
@@ -282,7 +282,7 @@ 
    Rewriting a Promise ch
 
 
    it can be rewritten with a single async function as follows:
    
 
-
    async function getProcessedData(url) {
+
    async function getProcessedData(url) {
   let v
   try {
     v = await downloadData(url)
@@ -309,7 +309,7 @@ 
    return await promiseV
   
    Consider the following rewrite of the above code. It returns null if
     processDataInWorker rejects with an error:
    
 
-  
    async function getProcessedData(url) {
+  
    async function getProcessedData(url) {
   let v
   try {
     v = await downloadData(url)
diff --git a/files/en-us/web/javascript/reference/statements/block/index.html b/files/en-us/web/javascript/reference/statements/block/index.html
index 934cd8a4c9f1549..54812a28627a938 100644
--- a/files/en-us/web/javascript/reference/statements/block/index.html
+++ b/files/en-us/web/javascript/reference/statements/block/index.html
@@ -26,14 +26,14 @@ 
    Syntax
    
 
 
    Block Statement
    
 
-
    {
+
    {
   StatementList
 }
 
    
 
 
    Labelled Block Statement
    
 
-
    LabelIdentifier: {
+
    LabelIdentifier: {
   StatementList
 }
 
    
diff --git a/files/en-us/web/javascript/reference/statements/break/index.html b/files/en-us/web/javascript/reference/statements/break/index.html
index 153c5f7183cd424..4f5246d10c4e46e 100644
--- a/files/en-us/web/javascript/reference/statements/break/index.html
+++ b/files/en-us/web/javascript/reference/statements/break/index.html
@@ -24,7 +24,7 @@
 
 
    Syntax
    
 
-
    break [label];
    
+
    break [label];
    
 
 
    
   
    label {{optional_inline}}
    
@@ -52,7 +52,7 @@ 
    break in while loop
    
   {{jsxref("Statements/while", "while")}} loop when i is 3, and then returns
   the value 3 * x.
    
 
-
    function testBreak(x) {
+
    function testBreak(x) {
   var i = 0;
 
   while (i < 6) {
@@ -71,7 +71,7 @@ 
    break in switch statements
    
   {{jsxref("Statements/switch", "switch")}} statement when a case is matched and the
   corresponding code has ran
    
 
-
    const food = "sushi";
+
    const food = "sushi";
 
 switch (food) {
   case "sushi":
@@ -92,7 +92,7 @@ 
    break in labeled blocks
    
   break statement must be nested within any label it references. Notice that
   inner_block is nested within outer_block.
    
 
-
    outer_block: {
+
    outer_block: {
   inner_block: {
     console.log('1');
     break outer_block; // breaks out of both inner_block and outer_block
@@ -109,7 +109,7 @@ 
    break in labeled blocks that throwblock_1 but references block_2. A break statement
   must always be nested within any label it references.
    
 
-
    block_1: {
+
    block_1: {
   console.log('1');
   break block_2; // SyntaxError: label not found
 }
@@ -125,7 +125,7 @@ 
    break within functions
    
   break statements within functions that are nested within a loop, or labeled
   block that the break statements are intended to break out of.
    
 
-
    function testBreak(x) {
+
    function testBreak(x) {
   var i = 0;
 
   while (i < 6) {
@@ -143,7 +143,7 @@ 
    break within functions
    
 testBreak(1); // SyntaxError: Illegal break statement
 
    
 
-
    block_1: {
+
    block_1: {
   console.log('1');
   ( function() {
     break block_1; // SyntaxError: Undefined label 'block_1'
diff --git a/files/en-us/web/javascript/reference/statements/class/index.html b/files/en-us/web/javascript/reference/statements/class/index.html
index 712d502a5aa8a11..979132ebc566cf0 100644
--- a/files/en-us/web/javascript/reference/statements/class/index.html
+++ b/files/en-us/web/javascript/reference/statements/class/index.html
@@ -32,7 +32,7 @@
 
 
    Syntax
    
 
-
    class name [extends otherName] {
+
    class name [extends otherName] {
   // class body
 }
    
 
diff --git a/files/en-us/web/javascript/reference/statements/const/index.html b/files/en-us/web/javascript/reference/statements/const/index.html
index 307e9e8d1aedd3a..204eae8c82012e6 100644
--- a/files/en-us/web/javascript/reference/statements/const/index.html
+++ b/files/en-us/web/javascript/reference/statements/const/index.html
@@ -27,7 +27,7 @@
 
    Syntax
    
 
 
    const name1 = value1 [, name2 = value2 [, ... [, nameN = valueN]]];
    
+  class="brush: js">const name1 = value1 [, name2 = value2 [, ... [, nameN = valueN]]];
    
 
 
    
   
    nameN
    
@@ -42,7 +42,7 @@ 
    Syntax
    
     href="/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Destructuring
     Assignment syntax can also be used to declare variables.
    
 
-
    const { bar } = foo; // where foo = { bar:10, baz:12 };
+
    const { bar } = foo; // where foo = { bar:10, baz:12 };
 /* This creates a constant with the name 'bar', which has a value of 10 */
    
 
 
    Description
    
@@ -75,7 +75,7 @@ 
    Basic const usage
    
 
    Constants can be declared with uppercase or lowercase, but a common convention is to
   use all-uppercase letters.
    
 
-
    // define MY_FAV as a constant and give it the value 7
+
    // define MY_FAV as a constant and give it the value 7
 const MY_FAV = 7;
 
 // this will throw an error - Uncaught TypeError: Assignment to constant variable.
@@ -100,7 +100,7 @@ 
    Block scoping
    
 
 
    It's important to note the nature of block scoping.
    
 
-
    if (MY_FAV === 7) {
+
    if (MY_FAV === 7) {
   // this is fine and creates a block scoped MY_FAV variable
   // (works equally well with let to declare a block scoped non const variable)
   let MY_FAV = 20;
@@ -118,7 +118,7 @@ 
    Block scoping
    
 
 
    const needs to be initialized
    
 
-
    // throws an error
+
    // throws an error
 // Uncaught SyntaxError: Missing initializer in const declaration
 
 const FOO;
@@ -128,7 +128,7 @@ 
    const in objects and arrays
    
 
 
    const also works on objects and arrays.
    
 
-
    const MY_OBJECT = {'key': 'value'};
+
    const MY_OBJECT = {'key': 'value'};
 
 // Attempting to overwrite the object throws an error
 // Uncaught TypeError: Assignment to constant variable.
diff --git a/files/en-us/web/javascript/reference/statements/continue/index.html b/files/en-us/web/javascript/reference/statements/continue/index.html
index 8de43cb40fb42d7..bb9532588d40eed 100644
--- a/files/en-us/web/javascript/reference/statements/continue/index.html
+++ b/files/en-us/web/javascript/reference/statements/continue/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    continue [label];
    
+
    continue [label];
    
 
 
    
   
    label
    
@@ -58,7 +58,7 @@ 
    Using continue with while
    
   continue statement that executes when the value of i is 3.
   Thus, n takes on the values 1, 3, 7, and 12.
    
 
-
    var i = 0;
+
    var i = 0;
 var n = 0;
 
 while (i < 5) {
@@ -86,7 +86,7 @@ 
    Using continue with a label
    
 
 
    See also {{jsxref("Statements/label", "label", "", 1)}}.
    
 
-
    var i = 0;
+
    var i = 0;
 var j = 8;
 
 checkiandj: while (i < 4) {
@@ -108,7 +108,7 @@ 
    Using continue with a label
    
 
 
    Output:
    
 
-
    i: 0
+
    i: 0
 
 // start checkj
 j: 8
diff --git a/files/en-us/web/javascript/reference/statements/debugger/index.html b/files/en-us/web/javascript/reference/statements/debugger/index.html
index 2c86ebf3867e41b..98aa65e2e21d1bc 100644
--- a/files/en-us/web/javascript/reference/statements/debugger/index.html
+++ b/files/en-us/web/javascript/reference/statements/debugger/index.html
@@ -14,7 +14,7 @@
 
 
    Syntax
    
 
-
    debugger;
    
+
    debugger;
    
 
 
    Examples
    
 
@@ -23,7 +23,7 @@ 
    Using the debugger statement
    
 
    The following example shows code where a debugger statement has been
   inserted, to invoke a debugger (if one exists) when the function is called.
    
 
-
    function potentiallyBuggyCode() {
+
    function potentiallyBuggyCode() {
     debugger;
     // do potentially buggy stuff to examine, step through, etc.
 }
    
diff --git a/files/en-us/web/javascript/reference/statements/do...while/index.html b/files/en-us/web/javascript/reference/statements/do...while/index.html
index a6f7fc3ecc9b4af..4c2e42c1546ba27 100644
--- a/files/en-us/web/javascript/reference/statements/do...while/index.html
+++ b/files/en-us/web/javascript/reference/statements/do...while/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    do
+
    do
    statement
 while (condition);
 
    
diff --git a/files/en-us/web/javascript/reference/statements/empty/index.html b/files/en-us/web/javascript/reference/statements/empty/index.html
index 6979c871b4f42fc..d7844f9c2dab5e5 100644
--- a/files/en-us/web/javascript/reference/statements/empty/index.html
+++ b/files/en-us/web/javascript/reference/statements/empty/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    ;
+
    ;
 
    
 
 
    Description
    
@@ -41,7 +41,7 @@ 
    Empty loop body
    
 
    The empty statement is sometimes used with loop statements. See the following example
   with an empty loop body:
    
 
-
    let arr = [1, 2, 3];
+
    let arr = [1, 2, 3];
 
 // Assign all array values to 0
 for (let i = 0; i < arr.length; arr[i++] = 0) /* empty statement */ ;
@@ -57,7 +57,7 @@ 
    Unintentional usage
    
 
 
    In the following example, the usage is probably not intentional:
    
 
-
    if (condition);       // Caution, this "if" does nothing!
+
    if (condition);       // Caution, this "if" does nothing!
    killTheUniverse()  // So this always gets executed!!!
 
    
 
@@ -68,7 +68,7 @@ 
    Unintentional usage
    
   not matter, and also the launchRocket() function in the else
   case will not be executed.
    
 
-
    if (one)
+
    if (one)
   doOne();
 else if (two)
   doTwo();
diff --git a/files/en-us/web/javascript/reference/statements/export/index.html b/files/en-us/web/javascript/reference/statements/export/index.html
index e2fb443bf4f820f..6e8c7121eb421df 100644
--- a/files/en-us/web/javascript/reference/statements/export/index.html
+++ b/files/en-us/web/javascript/reference/statements/export/index.html
@@ -33,7 +33,7 @@ 
    Syntax
    
   
  • Default Exports (One per module)
    • 
 
 
-
    // Exporting individual features
+
    // Exporting individual features
 export let name1, name2, …, nameN; // also var, const
 export let name1 = …, name2 = …, …, nameN; // also var, const
 export function functionName(){...}
@@ -75,7 +75,7 @@ 
    Description
    
 
 
    Named exports:
    
 
-
    // export features declared earlier
+
    // export features declared earlier
 export { myFunction, myVariable };
 
 // export individual features (can export var, let,
@@ -86,7 +86,7 @@ 
    Description
    
 
 
    Default exports:
    
 
-
    // export feature declared earlier as default
+
    // export feature declared earlier as default
 export { myFunction as default };
 
 // export individual features as default
@@ -101,18 +101,18 @@ 
    Description
    
 
 
    But a default export can be imported with any name for example:
    
 
-
    // file test.js
+
    // file test.js
 let k; export default k = 12;
 
    
 
-
    // some other file
+
    // some other file
 import m from './test'; // note that we have the freedom to use import m instead of import k, because k was default export
 console.log(m);        // will log 12
 
    
 
 
    You can also rename named exports to avoid naming conflicts:
    
 
-
    export { myFunction as function1,
+
    export { myFunction as function1,
          myVariable as variable };
 
    
 
@@ -124,13 +124,13 @@ 
    Re-exporting / Aggregating
    
 
 
    This can be achieved with the "export from" syntax:
    
 
-
    export { default as function1,
+
    export { default as function1,
          function2 } from 'bar.js';
 
    
 
 
    Which is comparable to a combination of import and export:
    
 
-
    import { default as function1,
+
    import { default as function1,
          function2 } from 'bar.js';
 export { function1 as default, function2 };
 
    
@@ -143,20 +143,20 @@ 
    Re-exporting / Aggregating
    
     equivalent:
    
 
    
 
-
    import DefaultExport from 'bar.js'; // Valid
+
    import DefaultExport from 'bar.js'; // Valid
 
    
 
-
    export DefaultExport from 'bar.js'; // Invalid
    
+
    export DefaultExport from 'bar.js'; // Invalid
    
 
 
    The correct way of doing this is to rename the export:
    
 
-
    export { default as DefaultExport } from 'bar.js';
+
    export { default as DefaultExport } from 'bar.js';
 
    
 
 
    The "export from" syntax allows the as token to be omitted; however
   this will mean the default item cannot be imported as a named import:
    
 
-
    export { default, function2 } from 'bar.js';
+
    export { default, function2 } from 'bar.js';
 
    
 
 
    Examples
    
@@ -165,7 +165,7 @@ 
    Using named exports
    
 
 
    In a module my-module.js, we could include the following code:
    
 
-
    // module "my-module.js"
+
    // module "my-module.js"
 function cube(x) {
   return x * x * x;
 }
@@ -187,7 +187,7 @@ 
    Using named exports
    
 
 
    Then in the top-level module included in your HTML page, we could have:
    
 
-
    import { cube, foo, graph } from './my-module.js';
+
    import { cube, foo, graph } from './my-module.js';
 
 graph.options = {
     color:'blue',
@@ -214,7 +214,7 @@ 
    Using the default export
    
 
    If we want to export a single value or to have a fallback value for your module, you
   could use a default export:
    
 
-
    // module "my-module.js"
+
    // module "my-module.js"
 
 export default function cube(x) {
   return x * x * x;
@@ -223,7 +223,7 @@ 
    Using the default export
    
 
 
    Then, in another script, it is straightforward to import the default export:
    
 
-
    import cube from './my-module.js';
+
    import cube from './my-module.js';
 console.log(cube(3)); // 27
 
    
 
@@ -241,25 +241,25 @@ 
    Using export from
    
 
 
    This is what it would look like using code snippets:
    
 
-
    // In childModule1.js
+
    // In childModule1.js
 let myFunction = ...; // assign something useful to myFunction
 let myVariable = ...; // assign something useful to myVariable
 export {myFunction, myVariable};
 
    
 
-
    // In childModule2.js
+
    // In childModule2.js
 let myClass = ...; // assign something useful to myClass
 export myClass;
 
    
 
-
    // In parentModule.js
+
    // In parentModule.js
 // Only aggregating the exports from childModule1 and childModule2
 // to re-export them
 export { myFunction, myVariable } from 'childModule1.js';
 export { myClass } from 'childModule2.js';
 
    
 
-
    // In top-level module
+
    // In top-level module
 // We can consume the exports from a single module since parentModule
 // "collected"/"bundled" them in a single source
 import { myFunction, myVariable, myClass } from 'parentModule.js'
    
diff --git a/files/en-us/web/javascript/reference/statements/for-await...of/index.html b/files/en-us/web/javascript/reference/statements/for-await...of/index.html
index 2550e0864bce2a6..a4a98ee4a1987d4 100644
--- a/files/en-us/web/javascript/reference/statements/for-await...of/index.html
+++ b/files/en-us/web/javascript/reference/statements/for-await...of/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    for await (variable of iterable) {
+
    for await (variable of iterable) {
   statement
 }
 
    
@@ -43,7 +43,7 @@ 
    Iterating over async iterables
    
 
    You can also iterate over an object that explicitly implements async iterable protocol:
 
    
 
-
    const asyncIterable = {
+
    const asyncIterable = {
   [Symbol.asyncIterator]() {
     return {
       i: 0,
@@ -74,7 +74,7 @@ 
    Iterating over async generators
    
 
    Since the return values of async generators conform to the async iterable protocol,
   they can be looped using for await...of.
    
 
-
    async function* asyncGenerator() {
+
    async function* asyncGenerator() {
   let i = 0;
   while (i < 3) {
     yield i++;
@@ -96,7 +96,7 @@ 
    Iterating over async generators
    
 
    This example first creates an async iterable for a stream of data, then uses it to find
   the size of the response from the API.
    
 
-
    async function* streamAsyncIterable(stream) {
+
    async function* streamAsyncIterable(stream) {
   const reader = stream.getReader();
   try {
     while (true) {
@@ -134,7 +134,7 @@ 
    Iterating over sync iterab
   case it internally awaits emitted values before assign them to the loop control
   variable.
    
 
-
    function* generator() {
+
    function* generator() {
   yield 0;
   yield 1;
   yield Promise.resolve(2);
@@ -173,7 +173,7 @@ 
    Iterating over sync iterab
     try/finally.
    
 
 
-
    function* generatorWithRejectedPromises() {
+
    function* generatorWithRejectedPromises() {
   try {
     yield 0;
     yield 1;
@@ -223,7 +223,7 @@ 
    Iterating over sync iterab
   for...of for the sync one and await yielded promises explicitly inside the
   loop.
    
 
-
    (async function() {
+
    (async function() {
   try {
     for (let numOrPromise of generatorWithRejectedPromises()) {
       console.log(await numOrPromise);
diff --git a/files/en-us/web/javascript/reference/statements/for...in/index.html b/files/en-us/web/javascript/reference/statements/for...in/index.html
index 9d5aa325cba6b97..8ab13413de5b458 100644
--- a/files/en-us/web/javascript/reference/statements/for...in/index.html
+++ b/files/en-us/web/javascript/reference/statements/for...in/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    for (variable in object)
+
    for (variable in object)
   statement
    
 
 
    
@@ -108,7 +108,7 @@ 
    Using for...in
    
 
    The for...in loop below iterates over all of the object's enumerable,
   non-Symbol properties and logs a string of the property names and their values.
    
 
-
    var obj = {a: 1, b: 2, c: 3};
+
    var obj = {a: 1, b: 2, c: 3};
 
 for (const prop in obj) {
   console.log(`obj.${prop} = ${obj[prop]}`);
@@ -125,7 +125,7 @@ 
    Iterating own properties
    
   {{jsxref("Object.prototype.hasOwnProperty", "hasOwnProperty()")}}: the inherited
   properties are not displayed.
    
 
-
    var triangle = {a: 1, b: 2, c: 3};
+
    var triangle = {a: 1, b: 2, c: 3};
 
 function ColoredTriangle() {
   this.color = 'red';
@@ -169,7 +169,7 @@ 
    Compatibility: Ini
 
    Prior to Firefox 40, it was possible to use an initializer expression
   (i=0) in a for...in loop:
    
 
-
    var obj = {a: 1, b: 2, c: 3};
+
    var obj = {a: 1, b: 2, c: 3};
 for (var i = 0 in obj) {
   console.log(obj[i]);
 }
diff --git a/files/en-us/web/javascript/reference/statements/for...of/index.html b/files/en-us/web/javascript/reference/statements/for...of/index.html
index 4091a5d82060477..24e57bc05f99d6c 100644
--- a/files/en-us/web/javascript/reference/statements/for...of/index.html
+++ b/files/en-us/web/javascript/reference/statements/for...of/index.html
@@ -23,7 +23,7 @@
 
 
    Syntax
    
 
-
    for (variable of iterable) {
+
    for (variable of iterable) {
   statement
 }
 
    
diff --git a/files/en-us/web/javascript/reference/statements/for/index.html b/files/en-us/web/javascript/reference/statements/for/index.html
index 0c6f4daf66313d0..76c66e0ce1882fa 100644
--- a/files/en-us/web/javascript/reference/statements/for/index.html
+++ b/files/en-us/web/javascript/reference/statements/for/index.html
@@ -27,7 +27,7 @@
 
 
    Syntax
    
 
-
    for ([initialization]; [condition]; [final-expression])
+
    for ([initialization]; [condition]; [final-expression])
    statement
    
 
 
    
@@ -66,7 +66,7 @@ 
    Using for
    
   less than nine, performs the two succeeding statements, and increments i by
   1 after each pass through the loop.
    
 
-
    for (let i = 0; i < 9; i++) {
+
    for (let i = 0; i < 9; i++) {
    console.log(i);
    // more statements
 }
@@ -79,7 +79,7 @@ 
    Optional for expressions
    
 
    For example, in the initialization block it is not required to
   initialize variables:
    
 
-
    var i = 0;
+
    var i = 0;
 for (; i < 9; i++) {
     console.log(i);
     // more statements
@@ -91,7 +91,7 @@ 
    Optional for expressions
    
   expression, you must make sure to break the loop in the body in order to not create an
   infinite loop.
    
 
-
    for (let i = 0;; i++) {
+
    for (let i = 0;; i++) {
    console.log(i);
    if (i > 3) break;
    // more statements
@@ -102,7 +102,7 @@ 
    Optional for expressions
    
   (increase) a variable, so that the condition for the break statement is true at some
   point.
    
 
-
    var i = 0;
+
    var i = 0;
 
 for (;;) {
   if (i > 3) break;
@@ -117,7 +117,7 @@ 
    Using for without a statement
    
   final-expression section, and therefore it does not require the
   use of a statement section, a semicolon is used instead.
    
 
-
    function showOffsetPos(sId) {
+
    function showOffsetPos(sId) {
 
   var nLeft = 0, nTop = 0;
 
diff --git a/files/en-us/web/javascript/reference/statements/function/index.html b/files/en-us/web/javascript/reference/statements/function/index.html
index e71e106c9395350..90fa007405a1855 100644
--- a/files/en-us/web/javascript/reference/statements/function/index.html
+++ b/files/en-us/web/javascript/reference/statements/function/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    function name([param[, param,[..., param]]]) {
+
    function name([param[, param,[..., param]]]) {
    [statements]
 }
 
    
@@ -60,7 +60,7 @@ 
    Conditionally created functions
    
   implementations and therefore this pattern should not be used in production code. For
   conditional function creation, use function expressions instead.
    
 
-
    var hoisted = "foo" in this;
+
    var hoisted = "foo" in this;
 console.log(`'foo' name ${hoisted ? "is" : "is not"} hoisted. typeof foo is ${typeof foo}`);
 if (false) {
   function foo(){ return 1; }
@@ -81,7 +81,7 @@ 
    Conditionally created functions
    
 
 
    The results are exactly the same for a condition that evaluates to true
    
 
-
    var hoisted = "foo" in this;
+
    var hoisted = "foo" in this;
 console.log(`'foo' name ${hoisted ? "is" : "is not"} hoisted. typeof foo is ${typeof foo}`);
 if (true) {
   function foo(){ return 1; }
@@ -105,7 +105,7 @@ 
    Function declaration hoisting
    
 
    Function declarations in JavaScript are hoisted to the top of the enclosing function or
   global scope. You can use the function before you declared it:
    
 
-
    hoisted(); // logs "foo"
+
    hoisted(); // logs "foo"
 
 function hoisted() {
   console.log('foo');
@@ -115,7 +115,7 @@ 
    Function declaration hoisting
    
 
    Note that {{jsxref("Operators/function", "function expressions", "", 1)}} are not
   hoisted:
    
 
-
    notHoisted(); // TypeError: notHoisted is not a function
+
    notHoisted(); // TypeError: notHoisted is not a function
 
 var notHoisted = function() {
    console.log('bar');
@@ -130,7 +130,7 @@ 
    Using function
    
   given the number of units sold of products a, b, and
   c.
    
 
-
    function calc_sales(units_a, units_b, units_c) {
+
    function calc_sales(units_a, units_b, units_c) {
    return units_a * 79 + units_b * 129 + units_c * 699;
 }
 
    
diff --git a/files/en-us/web/javascript/reference/statements/function_star_/index.html b/files/en-us/web/javascript/reference/statements/function_star_/index.html
index f0319f08d21389f..16effa111fb7a40 100644
--- a/files/en-us/web/javascript/reference/statements/function_star_/index.html
+++ b/files/en-us/web/javascript/reference/statements/function_star_/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    function* name([param[, param[, ... param]]]) {
+
    function* name([param[, param[, ... param]]]) {
    statements
 }
 
    
@@ -76,7 +76,7 @@ 
    Examples
    
 
 
    Simple example
    
 
-
    function* idMaker() {
+
    function* idMaker() {
   var index = 0;
   while (true)
     yield index++;
@@ -92,7 +92,7 @@ 
    Simple example
    
 
 
    Example with yield*
    
 
-
    function* anotherGenerator(i) {
+
    function* anotherGenerator(i) {
   yield i + 1;
   yield i + 2;
   yield i + 3;
@@ -115,7 +115,7 @@ 
    Example with yield*
    
 
 
    Passing arguments into Generators
    
 
-
    function* logGenerator() {
+
    function* logGenerator() {
   console.log(0);
   console.log(1, yield);
   console.log(2, yield);
@@ -134,7 +134,7 @@ 
    Passing arguments into Generators
    Return statement in a generator
    
 
-
    function* yieldAndReturn() {
+
    function* yieldAndReturn() {
   yield "Y";
   return "R";
   yield "unreachable";
@@ -148,7 +148,7 @@ 
    Return statement in a generator
    
 
 
    Generator as an object property
    
 
-
    const someObj = {
+
    const someObj = {
   *generator () {
     yield 'a';
     yield 'b';
@@ -164,7 +164,7 @@ 
    Generator as an object property
    
 
 
    Generator as an object method
    
 
-
    class Foo {
+
    class Foo {
   *generator () {
     yield 1;
     yield 2;
@@ -183,7 +183,7 @@ 
    Generator as an object method
    
 
 
    Generator as a computed property
    
 
-
    class Foo {
+
    class Foo {
   *[Symbol.iterator] () {
     yield 1;
     yield 2;
@@ -203,13 +203,13 @@ 
    Generator as a computed property
    
 
 
    Generators are not constructable
    
 
-
    function* f() {}
+
    function* f() {}
 var obj = new f; // throws "TypeError: f is not a constructor
 
    
 
 
    Generator defined in an expression
    
 
-
    const foo = function* () {
+
    const foo = function* () {
   yield 10;
   yield 20;
 };
@@ -219,7 +219,7 @@ 
    Generator defined in an expressionGenerator example
    
 
-
    function* powers(n){
+
    function* powers(n){
      //endless loop to generate
      for(let current =n;; current *= n){
          yield current;
diff --git a/files/en-us/web/javascript/reference/statements/if...else/index.html b/files/en-us/web/javascript/reference/statements/if...else/index.html
index 84263b6cdaae163..0289aa2466995ee 100644
--- a/files/en-us/web/javascript/reference/statements/if...else/index.html
+++ b/files/en-us/web/javascript/reference/statements/if...else/index.html
@@ -25,7 +25,7 @@
 
 
    Syntax
    
 
-
    if (condition)
+
    if (condition)
    statement1
 [else
    statement2]
diff --git a/files/en-us/web/javascript/reference/statements/import.meta/index.html b/files/en-us/web/javascript/reference/statements/import.meta/index.html
index 4c722e821367bc8..179a2b0cab365a4 100644
--- a/files/en-us/web/javascript/reference/statements/import.meta/index.html
+++ b/files/en-us/web/javascript/reference/statements/import.meta/index.html
@@ -18,7 +18,7 @@
 
 
    Syntax
    
 
-
    import.meta
    
+
    import.meta
    
 
 
    Description
    
 
diff --git a/files/en-us/web/javascript/reference/statements/import/index.html b/files/en-us/web/javascript/reference/statements/import/index.html
index 8f0f3bedf9692bc..e5a4a94ad1956ac 100644
--- a/files/en-us/web/javascript/reference/statements/import/index.html
+++ b/files/en-us/web/javascript/reference/statements/import/index.html
@@ -30,7 +30,7 @@
 
 
    Syntax
    
 
-
    import defaultExport from "module-name";
+
    import defaultExport from "module-name";
 import * as name from "module-name";
 import { export1 } from "module-name";
 import { export1 as alias1 } from "module-name";
@@ -72,14 +72,14 @@ 
    Import an entire module's contentsThis inserts myModule into the current scope, containing all the exports
   from the module in the file located in /modules/my-module.js.
    
 
-
    import * as myModule from '/modules/my-module.js';
+
    import * as myModule from '/modules/my-module.js';
 
    
 
 
    Here, accessing the exports means using the module name ("myModule" in this case) as a
   namespace. For example, if the module imported above includes an export
   doAllTheAmazingThings(), you would call it like this:
    
 
-
    myModule.doAllTheAmazingThings();
    
+
    myModule.doAllTheAmazingThings();
    
 
 
    Import a single export from a module
    
 
@@ -89,13 +89,13 @@ 
    Import a single export from a modu
   {{JSxRef("Statements/export", "export")}} statement), this inserts myExport
   into the current scope.
    
 
-
    import {myExport} from '/modules/my-module.js';
    
+
    import {myExport} from '/modules/my-module.js';
    
 
 
    Import multiple exports from module
    
 
 
    This inserts both foo and bar into the current scope.
    
 
-
    import {foo, bar} from '/modules/my-module.js';
    
+
    import {foo, bar} from '/modules/my-module.js';
    
 
 
    Import an export with a more
   convenient alias
    
@@ -103,14 +103,14 @@ 
    Import an export with a m
 
    You can rename an export when importing it. For example, this inserts
   shortName into the current scope.
    
 
-
    import {reallyReallyLongModuleExportName as shortName}
+
    import {reallyReallyLongModuleExportName as shortName}
   from '/modules/my-module.js';
    
 
 
    Rename multiple exports during import
    
 
 
    Import multiple exports from a module with convenient aliases.
    
 
-
    import {
+
    import {
   reallyReallyLongModuleExportName as shortName,
   anotherLongModuleName as short
 } from '/modules/my-module.js';
    
@@ -121,12 +121,12 @@ 
    Import a module for its side
 
    Import an entire module for side effects only, without importing anything. This runs
   the module's global code, but doesn't actually import any values.
    
 
-
    import '/modules/my-module.js';
+
    import '/modules/my-module.js';
 
    
 
 
    This works with {{anch("Dynamic Imports", "dynamic imports")}} as well:
    
 
-
    (async () => {
+
    (async () => {
   if (somethingIsTrue) {
     // import module for side effects
     await import('/modules/my-module.js');
@@ -145,18 +145,18 @@ 
    Importing defaults
    
 
 
    The simplest version directly imports the default:
    
 
-
    import myDefault from '/modules/my-module.js';
    
+
    import myDefault from '/modules/my-module.js';
    
 
 
    It is also possible to use the default syntax with the ones seen above (namespace
   imports or named imports). In such cases, the default import will have to be declared
   first. For instance:
    
 
-
    import myDefault, * as myModule from '/modules/my-module.js';
+
    import myDefault, * as myModule from '/modules/my-module.js';
 // myModule used as a namespace
    
 
 
    or
    
 
-
    import myDefault, {foo, bar} from '/modules/my-module.js';
+
    import myDefault, {foo, bar} from '/modules/my-module.js';
 // specific, named imports
 
    
 
@@ -164,7 +164,7 @@ 
    Importing defaults
    
   works a bit differently. You need to destructure and rename the "default" key from the
   returned object.
    
 
-
    (async () => {
+
    (async () => {
   if (somethingIsTrue) {
     const { default: myDefault, foo, bar } = await import('/modules/my-module.js');
   }
@@ -198,7 +198,7 @@ 
    Dynamic Imports
    
 
    To dynamically import a module, the import keyword may be called as a
   function. When used this way, it returns a promise.
    
 
-
    import('/modules/my-module.js')
+
    import('/modules/my-module.js')
   .then((module) => {
     // Do something with the module.
   });
@@ -206,7 +206,7 @@ 
    Dynamic Imports
    
 
 
    This form also supports the await keyword.
    
 
-
    let module = await import('/modules/my-module.js');
+
    let module = await import('/modules/my-module.js');
 
    
 
 
    Examples
    
@@ -218,7 +218,7 @@ 
    Standard Import
    
 
 
    The module: file.js
    
 
-
    function getJSON(url, callback) {
+
    function getJSON(url, callback) {
   let xhr = new XMLHttpRequest();
   xhr.onload = function () {
     callback(this.responseText)
@@ -233,7 +233,7 @@ 
    The module: file.js
    
 
 
    The main program: main.js
    
 
-
    import { getUsefulContents } from '/modules/file.js';
+
    import { getUsefulContents } from '/modules/file.js';
 
 getUsefulContents('http://www.example.com',
     data => { doSomethingUseful(data); });
    
@@ -245,7 +245,7 @@ 
    Dynamic Import
    
   only way to implement this functionality. The import() function also
   supports await.
    
 
-
    const main = document.querySelector("main");
+
    const main = document.querySelector("main");
 for (const link of document.querySelectorAll("nav > a")) {
   link.addEventListener("click", e => {
     e.preventDefault();
diff --git a/files/en-us/web/javascript/reference/statements/label/index.html b/files/en-us/web/javascript/reference/statements/label/index.html
index 850816d62f4c064..084d94d510e124f 100644
--- a/files/en-us/web/javascript/reference/statements/label/index.html
+++ b/files/en-us/web/javascript/reference/statements/label/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    label :
+
    label :
   statement
 
    
 
@@ -52,7 +52,7 @@ 
    Examples
    
 
    Using a labeled continue with for loops
 
    
 
-
    var i, j;
+
    var i, j;
 
 loop1:
 for (i = 0; i < 3; i++) {      //The first for statement is labeled "loop1"
@@ -81,7 +81,7 @@ 
    Using a labeled continue statementGiven an array of items and an array of tests, this example counts the number of items
   that passes all the tests.
    
 
-
    var itemsPassed = 0;
+
    var itemsPassed = 0;
 var i, j;
 
 top:
@@ -97,7 +97,7 @@ 
    Using a labeled continue statementUsing a labeled break with for loops
    
 
-
    var i, j;
+
    var i, j;
 
 loop1:
 for (i = 0; i < 3; i++) {      //The first for statement is labeled "loop1"
@@ -122,7 +122,7 @@ 
    Using a labeled break statement
    
 
    Given an array of items and an array of tests, this example determines whether all
   items pass all tests.
    
 
-
    var allPass = true;
+
    var allPass = true;
 var i, j;
 
 top:
@@ -140,7 +140,7 @@ 
    Using a labeled block with break
    
 
    You can use labels within simple blocks, but only break statements can
   make use of non-loop labels.
    
 
-
    foo: {
+
    foo: {
   console.log('face');
   break foo;
   console.log('this will not be executed');
@@ -159,19 +159,19 @@ 
    Labeled function declarations
    
     href="http://www.ecma-international.org/ecma-262/6.0/#sec-labelled-function-declarations">web
     compatibility annex of the specification.
    
 
-
    L: function F() {}
    
+
    L: function F() {}
    
 
 
    In strict mode code,
   however, this will throw a {{jsxref("SyntaxError")}}:
    
 
-
    'use strict';
+
    'use strict';
 L: function F() {}
 // SyntaxError: functions cannot be labelled
    
 
 
    Generator
     functions can neither be labeled in strict code, nor in non-strict code:
    
 
-
    L: function* F() {}
+
    L: function* F() {}
 // SyntaxError: generator functions cannot be labelled
 
    
 
diff --git a/files/en-us/web/javascript/reference/statements/let/index.html b/files/en-us/web/javascript/reference/statements/let/index.html
index f3b303dd04a0d53..5e678eb883babda 100644
--- a/files/en-us/web/javascript/reference/statements/let/index.html
+++ b/files/en-us/web/javascript/reference/statements/let/index.html
@@ -26,7 +26,7 @@
 
    Syntax
    
 
 
    let name1 [= value1] [, name2 [= value2]] [, ..., nameN [= valueN];
    
+  class="brush: js">let name1 [= value1] [, name2 [= value2]] [, ..., nameN [= valueN];
    
 
 
    Parameters
    
 
@@ -43,7 +43,7 @@ 
    Parameters
    
     href="/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Destructuring
     Assignment syntax can also be used to declare variables.
    
 
-
    let { bar } = foo; // where foo = { bar:10, baz:12 };
+
    let { bar } = foo; // where foo = { bar:10, baz:12 };
 /* This creates a variable with the name 'bar', which has a value of 10 */
    
 
 
    Description
    
@@ -79,7 +79,7 @@ 
    Scoping rules
    
   var. The main difference is that the scope of a
   var variable is the entire enclosing function:
    
 
-
    function varTest() {
+
    function varTest() {
   var x = 1;
   {
     var x = 2;  // same variable!
@@ -102,7 +102,7 @@ 
    Scoping rules
    
   let, unlike var, does not
   create a property on the global object. For example:
    
 
-
    var x = 'global';
+
    var x = 'global';
 let y = 'global';
 console.log(this.x); // "global"
 console.log(this.y); // undefined
@@ -114,7 +114,7 @@ 
    Emulating private members
    
   let bindings to share one or more private members without
   using closures:
    
 
-
    var Thing;
+
    var Thing;
 
 {
   let privateScope = new WeakMap();
@@ -161,7 +161,7 @@ 
    Redeclarations
    
 
    Redeclaring the same variable within the same function or block scope raises a
   {{jsxref("SyntaxError")}}.
    
 
-
    if (x) {
+
    if (x) {
   let foo;
   let foo; // SyntaxError thrown.
 }
@@ -170,7 +170,7 @@ 
    Redeclarations
    
 
    You may encounter errors in {{jsxref("Statements/switch", "switch")}} statements
   because there is only one block.
    
 
-
    let x = 1;
+
    let x = 1;
 switch(x) {
   case 0:
     let foo;
@@ -185,7 +185,7 @@ 
    Redeclarations
    
   create a new block scoped lexical environment, which will not produce the redeclaration
   errors shown above.
    
 
-
    let x = 1;
+
    let x = 1;
 
 switch(x) {
   case 0: {
@@ -215,7 +215,7 @@ 
    Temporal dead zone (TDZ)
    
 
    The variable is said to be in a "temporal dead zone" (TDZ) from the start of the block
   until the initialization has completed.
    
 
-
    { // TDZ starts at beginning of scope
+
    { // TDZ starts at beginning of scope
   console.log(bar); // undefined
   console.log(foo); // ReferenceError
   var bar = 1;
@@ -229,7 +229,7 @@ 
    Temporal dead zone (TDZ)
    
   appears before the variable is declared, the function is called outside the
   TDZ.
    
 
-
    {
+
    {
     // TDZ starts at beginning of scope
     const func = () => console.log(letVar); // OK
 
@@ -245,14 +245,14 @@ 
    The TDZ and typeof
    
 
    Using the typeof operator for a let variable in its TDZ will
   throw a {{jsxref("ReferenceError")}}:
    
 
-
    // results in a 'ReferenceError'
+
    // results in a 'ReferenceError'
 console.log(typeof i);
 let i = 10;
    
 
 
    This differs from using typeof for undeclared variables, and variables
   that hold a value of undefined:
    
 
-
    // prints out 'undefined'
+
    // prints out 'undefined'
 console.log(typeof undeclaredVariable);
 
    
 
@@ -260,7 +260,7 @@ 
    TDZ combined with lexical scoping
    The following code results in a ReferenceError at the line shown:
    
 
-
    function test(){
+
    function test(){
    var foo = 33;
    if(foo) {
       let foo = (foo + 55); // ReferenceError
@@ -284,7 +284,7 @@ 
    TDZ combined with lexical scoping
    This is still in the temporal dead zone as its declaration statement has not been
   reached and terminated.
    
 
-
    function go(n) {
+
    function go(n) {
   // n here is defined!
   console.log(n); // Object {a: [1,2,3]}
 
@@ -302,7 +302,7 @@ 
    Other situations
    
   to that block. Note the difference between var, whose
   scope is inside the function where it is declared.
    
 
-
    var a = 1;
+
    var a = 1;
 var b = 2;
 
 if (a === 1) {
@@ -322,7 +322,7 @@ 
    Other situations
    
   to var being hoisted to the top of the block. This results
   in an implicit re-declaration of the variable.
    
 
-
    let x = 1;
+
    let x = 1;
 
 {
   var x = 2; // SyntaxError for re-declaration
diff --git a/files/en-us/web/javascript/reference/statements/return/index.html b/files/en-us/web/javascript/reference/statements/return/index.html
index 79caaf7d8e5b169..849249298e0e96f 100644
--- a/files/en-us/web/javascript/reference/statements/return/index.html
+++ b/files/en-us/web/javascript/reference/statements/return/index.html
@@ -21,7 +21,7 @@
 
 
    Syntax
    
 
-
    return [expression]; 
    
+
    return [expression]; 
    
 
 
    
   
    expression
    
@@ -36,7 +36,7 @@ 
    Description
    
   example, the following function returns the square of its argument, x,
   where x is a number.
    
 
-
    function square(x) {
+
    function square(x) {
    return x * x;
 }
 var demo = square(3);
@@ -47,7 +47,7 @@ 
    Description
    
 
 
    The following return statements all break the function execution:
    
 
-
    return;
+
    return;
 return true;
 return false;
 return x;
@@ -61,13 +61,13 @@ 
    Automatic Semicolon Insertion
    
     semicolon insertion (ASI). No line terminator is allowed between the
   return keyword and the expression.
    
 
-
    return
+
    return
 a + b;
 
    
 
 
    is transformed by ASI into:
    
 
-
    return;
+
    return;
 a + b;
 
    
 
@@ -78,7 +78,7 @@ 
    Automatic Semicolon Insertion
    
 
 
    To avoid this problem (to prevent ASI), you could use parentheses:
    
 
-
    return (
+
    return (
   a + b
 );
 
    
@@ -89,7 +89,7 @@ 
    Interrupt a function
    
 
 
    A function immediately stops at the point where return is called.
    
 
-
    function counter() {
+
    function counter() {
   for (var count = 1; ; count++) {  // infinite loop
     console.log(count + 'A'); // until 5
       if (count === 5) {
@@ -119,7 +119,7 @@ 
    Returning a function
    
 
    See also the article about Closures.
 
    
 
-
    function magic() {
+
    function magic() {
   return function calc(x) { return x * 42; };
 }
 
diff --git a/files/en-us/web/javascript/reference/statements/switch/index.html b/files/en-us/web/javascript/reference/statements/switch/index.html
index 26af69aa5bc2d8c..daee2c4d7bef076 100644
--- a/files/en-us/web/javascript/reference/statements/switch/index.html
+++ b/files/en-us/web/javascript/reference/statements/switch/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    switch (expression) {
+
    switch (expression) {
   case value1:
     //Statements executed when the
     //result of expression matches value1
@@ -98,7 +98,7 @@ 
    Using switch
    
   break were omitted, the statement for the case 'Cherries'
   would also be executed.
    
 
-
    switch (expr) {
+
    switch (expr) {
   case 'Oranges':
     console.log('Oranges are $0.59 a pound.');
     break;
@@ -131,7 +131,7 @@ 
    What happens if I forgot a break
 
 
    See example here:
    
 
-
    var foo = 0;
+
    var foo = 0;
 switch (foo) {
   case -1:
     console.log('negative 1');
@@ -155,7 +155,7 @@ 
    Can I put a default betw
 
    Yes, you can! JavaScript will drop you back to the default if it can't
   find a match:
    
 
-
    var foo = 5;
+
    var foo = 5;
 switch (foo) {
   case 2:
     console.log(2);
@@ -186,7 +186,7 @@ 
    Multi-case : single operation<
 
    This is an example of a single operation sequential case statement, where
   four different values perform exactly the same.
    
 
-
    var Animal = 'Giraffe';
+
    var Animal = 'Giraffe';
 switch (Animal) {
   case 'Cow':
   case 'Giraffe':
@@ -207,7 +207,7 @@ 
    Multi-case : chained operati
   not have to be numerically sequential. In JavaScript, you can even mix in definitions of
   strings into these case statements as well.
    
 
-
    var foo = 1;
+
    var foo = 1;
 var output = 'Output: ';
 switch (foo) {
   case 0:
@@ -283,7 +283,7 @@ 
    Block-scope variables wi
 
 
    Take a look at this example:
    
 
-
    const action = 'say_hello';
+
    const action = 'say_hello';
 switch (action) {
   case 'say_hello':
     let message = 'hello';
@@ -310,7 +310,7 @@ 
    Block-scope variables wi
 
 
    We can easily fix this by wrapping our case clauses with brackets:
    
 
-
    const action = 'say_hello';
+
    const action = 'say_hello';
 switch (action) {
   case 'say_hello': { // added brackets
     let message = 'hello';
diff --git a/files/en-us/web/javascript/reference/statements/throw/index.html b/files/en-us/web/javascript/reference/statements/throw/index.html
index 5b7cc13577b447b..23fc25bbf8d1b0b 100644
--- a/files/en-us/web/javascript/reference/statements/throw/index.html
+++ b/files/en-us/web/javascript/reference/statements/throw/index.html
@@ -26,7 +26,7 @@
 
 
    Syntax
    
 
-
    throw expression; 
    
+
    throw expression; 
    
 
 
    
   
    expression
    
@@ -59,7 +59,7 @@ 
    Throw an object
    
   object of type UserException and uses it in a throw statement.
 
    
 
-
    function UserException(message) {
+
    function UserException(message) {
   this.message = message;
   this.name = 'UserException';
 }
@@ -163,7 +163,7 @@ 
    Rethrow an exception
    
   is over 50. The rethrown exception propagates up to the enclosing function or to the top
   level so that the user sees it.
    
 
-
    try {
+
    try {
   throw n; // throws an exception with a numeric value
 } catch (e) {
   if (e <= 50) {
diff --git a/files/en-us/web/javascript/reference/statements/try...catch/index.html b/files/en-us/web/javascript/reference/statements/try...catch/index.html
index 167467b239abce7..2df8a5a82811a4f 100644
--- a/files/en-us/web/javascript/reference/statements/try...catch/index.html
+++ b/files/en-us/web/javascript/reference/statements/try...catch/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    try {
+
    try {
   try_statements
 }
 [catch [(exception_var)] {
@@ -89,7 +89,7 @@ 
    Unconditional catch-block
    
   exception occurs in the following code, control transfers to the
   catch-block.
    
 
-
    try {
+
    try {
   throw 'myException'; // generates an exception
 } catch (e) {
   // statements to handle any exceptions
@@ -107,7 +107,7 @@ 
    Conditional catch-blocks
    
   try...catch blocks with if...else if...else structures, like
   this:
    
 
-
    try {
+
    try {
   myroutine(); // may throw three types of exceptions
 } catch (e) {
   if (e instanceof TypeError) {
@@ -126,7 +126,7 @@ 
    Conditional catch-blocks
    
 
    A common use case for this is to only catch (and silence) a small subset of expected
   errors, and then re-throw the error in other cases:
    
 
-
    try {
+
    try {
   myRoutine();
 } catch (e) {
   if (e instanceof RangeError) {
@@ -146,7 +146,7 @@ 
    The exception identifier
    
   catch-block's {{Glossary("Scope", "scope")}}. If you don't need the
   exception value, it could be omitted.
    
 
-
    function isValidJSON(text) {
+
    function isValidJSON(text) {
   try {
     JSON.parse(text);
     return true;
@@ -170,7 +170,7 @@ 
    The finally-block
    
   finally-block makes sure the file always closes after it is used even if an
   exception was thrown.
    
 
-
    openMyFile();
+
    openMyFile();
 try {
   // tie up a resource
   writeMyFile(theData);
@@ -185,7 +185,7 @@ 
    Nested try-blocks
    
 
 
    First, let's see what happens with this:
    
 
-
    try {
+
    try {
   try {
     throw new Error('oops');
   } finally {
@@ -203,7 +203,7 @@ 
    Nested try-blocks
    
 
    Now, if we already caught the exception in the inner try-block by adding a
   catch-block
    
 
-
    try {
+
    try {
   try {
     throw new Error('oops');
   } catch (ex) {
@@ -222,7 +222,7 @@ 
    Nested try-blocks
    
 
 
    And now, let's rethrow the error.
    
 
-
    try {
+
    try {
   try {
     throw new Error('oops');
   } catch (ex) {
@@ -253,7 +253,7 @@ 
    Returning from a finally-block
    
   return statements in the try and catch-blocks.
   This includes exceptions thrown inside of the catch-block:
    
 
-
    (function() {
+
    (function() {
   try {
     try {
       throw new Error('oops');
diff --git a/files/en-us/web/javascript/reference/statements/var/index.html b/files/en-us/web/javascript/reference/statements/var/index.html
index a4cf31e407a194f..105d3d6e967a248 100644
--- a/files/en-us/web/javascript/reference/statements/var/index.html
+++ b/files/en-us/web/javascript/reference/statements/var/index.html
@@ -23,7 +23,7 @@
 
    Syntax
    
 
 
    var varname1 [= value1] [, varname2 [= value2] ... [, varnameN [= valueN]]];
    
+  class="brush: js">var varname1 [= value1] [, varname2 [= value2] ... [, varnameN [= valueN]]];
    
 
 
    
   
    varnameN
    
@@ -37,7 +37,7 @@ 
    Syntax
    
     href="/en-US/docs/Web/JavaScript/Reference/Operators/Destructuring_assignment">Destructuring
     Assignment syntax can also be used to declare variables.
    
 
-
    var { bar } = foo; // where foo = { bar:10, baz:12 };
+
    var { bar } = foo; // where foo = { bar:10, baz:12 };
 /* This creates a variable with the name 'bar', which has a value of 10 */
    
 
 
    Description
    
@@ -52,7 +52,7 @@ 
    Description
    
   in strict mode, and the variable will not lose its value, unless another assignment is
   performed.
    
 
-
    'use strict';
+
    'use strict';
 function foo() {
   var x = 1;
   function bar() {
@@ -71,7 +71,7 @@ 
    Description
    
 
    Variables declared using var are created before any code is executed in a
   process known as hoisting. Their initial value is undefined.
    
 
-
    'use strict';
+
    'use strict';
 console.log(x);                // undefined (note: not ReferenceError)
 console.log('still going...'); // still going...
 var x = 1;
@@ -93,7 +93,7 @@ 
    Description
    
   management, and it would make no sense to be able to use the delete
   operator on a global variable.
    
 
-
    'use strict';
+
    'use strict';
 var x = 1;
 globalThis.hasOwnProperty('x'); // true
 delete globalThis.x; // TypeError in strict mode. Fails silently otherwise.
@@ -114,13 +114,13 @@ 
    Unqualified identifier assignmentsSo you can just type:
    
 
-
    function foo() {
+
    function foo() {
   String('s') // Note the function `String` is implicitly visible
 }
    
 
 
    ...because
    
 
-
    globalThis.hasOwnProperty('String') // true
    
+
    globalThis.hasOwnProperty('String') // true
    
 
 
    So the global object will ultimately be searched for unqualified identifiers. You don't
   have to type globalThis.String, you can just type the unqualified
@@ -129,7 +129,7 @@ 
    Unqualified identifier assignments
 
-
    foo = 'f' // In non-strict mode, assumes you want to create a property named `foo` on the global object
+
    foo = 'f' // In non-strict mode, assumes you want to create a property named `foo` on the global object
 globalThis.hasOwnProperty('foo') // true
 
    
 
@@ -151,7 +151,7 @@ 
    var hoisting
    
   declared. This behavior is called "hoisting", as it appears that the variable
   declaration is moved to the top of the function or global code.
    
 
-
    bla = 2;
+
    bla = 2;
 var bla;
 
 // ...is implicitly understood as:
@@ -168,7 +168,7 @@ 
    var hoisting
    
   not its value's initialization. The value will be indeed assigned when the assignment
   statement is reached:
    
 
-
    function do_something() {
+
    function do_something() {
   console.log(bar); // undefined
   var bar = 111;
   console.log(bar); // 111
@@ -189,13 +189,13 @@ 
    Examples
    
 
    Declaring and initializing two variables
 
    
 
-
    var a = 0, b = 0;
+
    var a = 0, b = 0;
 
    
 
 
    Assigning two variables with
   single string value
    
 
-
    var a = 'A';
+
    var a = 'A';
 var b = a;
 
 // ...is equivalent to:
@@ -205,7 +205,7 @@ 
    Assigning two variable
 
 
    Be mindful of the order:
    
 
-
    var x = y, y = 'A';
+
    var x = y, y = 'A';
 console.log(x + y); // undefinedA
 
    
 
@@ -218,7 +218,7 @@ 
    Assigning two variable
 
 
    Initialization of several variables
    
 
-
    var x = 0;
+
    var x = 0;
 function f() {
   var x = y = 1; // Declares x locally; declares y globally.
 }
@@ -232,7 +232,7 @@ 
    Initialization of several variables
 
 
    The same example as above but with a strict mode:
    
 
-
    'use strict';
+
    'use strict';
 
 var x = 0;
 function f() {
@@ -248,7 +248,7 @@ 
    Implicit globals and outer fu
 
    Variables that appear to be implicit globals may be references to variables in an outer
   function scope:
    
 
-
    var x = 0; // Declares x within file scope, then assigns it a value of 0.
+
    var x = 0; // Declares x within file scope, then assigns it a value of 0.
 
 console.log(typeof z); // "undefined", since z doesn't exist yet
 
diff --git a/files/en-us/web/javascript/reference/statements/while/index.html b/files/en-us/web/javascript/reference/statements/while/index.html
index d87dc4b82755203..655c80faa0a2649 100644
--- a/files/en-us/web/javascript/reference/statements/while/index.html
+++ b/files/en-us/web/javascript/reference/statements/while/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    while (condition)
+
    while (condition)
   statement
 
    
 
diff --git a/files/en-us/web/javascript/reference/statements/with/index.html b/files/en-us/web/javascript/reference/statements/with/index.html
index 577c8eced7f3391..a0e0116ef08d2ee 100644
--- a/files/en-us/web/javascript/reference/statements/with/index.html
+++ b/files/en-us/web/javascript/reference/statements/with/index.html
@@ -17,7 +17,7 @@
 
 
    Syntax
    
 
-
    with (expression)
+
    with (expression)
   statement
 
    
 
@@ -67,7 +67,7 @@ 
    Ambiguity contra
    
   reader or JavaScript compiler to decide whether an unqualified name will be found along
   the scope chain, and if so, in which object. So given this example:
    
 
-
    function f(x, o) {
+
    function f(x, o) {
   with (o) {
     console.log(x);
   }
@@ -83,7 +83,7 @@ 
    Ambiguity contra
    
   especially when used with something other than a plain object. Consider this example:
 
    
 
-
    function f(foo, values) {
+
    function f(foo, values) {
   with (foo) {
     console.log(values);
   }
@@ -111,7 +111,7 @@ 
    Using with
    
   {{jsxref("Math.sin", "sin")}} methods, without specifying an object. JavaScript assumes
   the Math object for these references.
    
 
-
    var a, x, y;
+
    var a, x, y;
 var r = 10;
 
 with (Math) {
diff --git a/files/en-us/web/javascript/reference/template_literals/index.html b/files/en-us/web/javascript/reference/template_literals/index.html
index a66e99cef831092..29045ba6221b804 100644
--- a/files/en-us/web/javascript/reference/template_literals/index.html
+++ b/files/en-us/web/javascript/reference/template_literals/index.html
@@ -22,7 +22,7 @@
 
 
    Syntax
    
 
-
    `string text`
+
    `string text`
 
 `string text line 1
  string text line 2`
@@ -51,7 +51,7 @@ 
    Description
    
 
    To escape a backtick in a template literal, put a backslash (\) before the
   backtick.
    
 
-
    `\`` === '`' // --> true
    
+
    `\`` === '`' // --> true
    
 
 
    Multi-line strings
    
 
@@ -60,14 +60,14 @@ 
    Multi-line strings
    
 
    Using normal strings, you would have to use the following syntax in order to get
   multi-line strings:
    
 
-
    console.log('string text line 1\n' +
+
    console.log('string text line 1\n' +
 'string text line 2');
 // "string text line 1
 // string text line 2"
    
 
 
    Using template literals, you can do the same like this:
    
 
-
    console.log(`string text line 1
+
    console.log(`string text line 1
 string text line 2`);
 // "string text line 1
 // string text line 2"
    
@@ -77,7 +77,7 @@ 
    Expression interpolation
    
 
    In order to embed expressions within normal strings, you would use the following
   syntax:
    
 
-
    let a = 5;
+
    let a = 5;
 let b = 10;
 console.log('Fifteen is ' + (a + b) + ' and\nnot ' + (2 * a + b) + '.');
 // "Fifteen is 15 and
@@ -86,7 +86,7 @@ 
    Expression interpolation
    
 
    Now, with template literals, you are able to make use of the syntactic sugar, making
   substitutions like this more readable:
    
 
-
    let a = 5;
+
    let a = 5;
 let b = 10;
 console.log(`Fifteen is ${a + b} and
 not ${2 * a + b}.`);
@@ -104,7 +104,7 @@ 
    Nesting templates
    
 
 
    In ES5:
    
 
-
    let classes = 'header';
+
    let classes = 'header';
 classes += (isLargeScreen() ?
   '' : item.isCollapsed ?
     ' icon-expander' : ' icon-collapser');
@@ -112,12 +112,12 @@ 
    Nesting templates
    
 
 
    In ES2015 with template literals and without nesting:
    
 
-
    const classes = `header ${ isLargeScreen() ? '' :
+
    const classes = `header ${ isLargeScreen() ? '' :
   (item.isCollapsed ? 'icon-expander' : 'icon-collapser') }`;
    
 
 
    In ES2015 with nested template literals:
    
 
-
    const classes = `header ${ isLargeScreen() ? '' :
+
    const classes = `header ${ isLargeScreen() ? '' :
   `icon-${item.isCollapsed ? 'expander' : 'collapser'}` }`;
    
 
 
    Tagged templates
    
@@ -134,7 +134,7 @@ 
    Tagged templates
    
 
 
    The name of the function used for the tag can be whatever you want.
    
 
-
    let person = 'Mike';
+
    let person = 'Mike';
 let age = 28;
 
 function myTag(strings, personExp, ageExp) {
@@ -160,7 +160,7 @@ 
    Tagged templates
    
 
 
    Tag functions don't even need to return a string!
    
 
-
    function template(strings, ...keys) {
+
    function template(strings, ...keys) {
   return (function(...values) {
     let dict = values[values.length - 1] || {};
     let result = [strings[0]];
@@ -194,7 +194,7 @@ 
    Raw strings
    
     href="/en-US/docs/Web/JavaScript/Guide/Grammar_and_types#Using_special_characters_in_strings">escape
     sequences.
    
 
-
    function tag(strings) {
+
    function tag(strings) {
   console.log(strings.raw[0]);
 }
 
@@ -206,7 +206,7 @@ 
    Raw strings
    
 
    In addition, the {{jsxref("String.raw()")}} method exists to create raw strings—just
   like the default template function and string concatenation would create.
    
 
-
    let str = String.raw`Hi\n${2+3}!`;
+
    let str = String.raw`Hi\n${2+3}!`;
 // "Hi\n5!"
 
 str.length;
@@ -236,7 +236,7 @@ 
    ES2016 behavior
    
   ECMAScript grammar, a parser looks for valid Unicode escape sequences, but finds
   malformed syntax:
    
 
-
    latex`\unicode`
+
    latex`\unicode`
 // Throws in older ECMAScript versions (ES2016 and earlier)
 // SyntaxError: malformed Unicode character escape sequence
    
 
@@ -255,7 +255,7 @@ 
    ES2018 revision of illegal
   representation. They will show up as {{jsxref("undefined")}} element in the “cooked”
   array:
    
 
-
    function latex(str) {
+
    function latex(str) {
   return { "cooked": str[0], "raw": str.raw[0] }
 }
 
@@ -267,7 +267,7 @@ 
    ES2018 revision of illegal
   templates—not from untagged template literals:
    
 
 
    let bad = `bad escape sequence: \unicode`;
    
+  class="brush: js example-bad">let bad = `bad escape sequence: \unicode`;
    
 
 
    Specifications
    
 
diff --git a/files/en-us/web/xslt/xslt_js_interface_in_gecko/advanced_example/index.html b/files/en-us/web/xslt/xslt_js_interface_in_gecko/advanced_example/index.html
index 94ebe9c2b0a283b..08219420f5d5d8d 100644
--- a/files/en-us/web/xslt/xslt_js_interface_in_gecko/advanced_example/index.html
+++ b/files/en-us/web/xslt/xslt_js_interface_in_gecko/advanced_example/index.html
@@ -14,7 +14,7 @@ 
    Advanced example
    
 
 
    Figure 7: Sorting based on div contentview example
    
 
-
    // XHTML Fragment:
+
    // XHTML Fragment:
 
 <div id="example">
   <div>1</div>
diff --git a/files/en-us/web/xslt/xslt_js_interface_in_gecko/basic_example/index.html b/files/en-us/web/xslt/xslt_js_interface_in_gecko/basic_example/index.html
index 730e5dad2903ff1..af6063dfc54f213 100644
--- a/files/en-us/web/xslt/xslt_js_interface_in_gecko/basic_example/index.html
+++ b/files/en-us/web/xslt/xslt_js_interface_in_gecko/basic_example/index.html
@@ -10,7 +10,7 @@ 
    Basic Example
    
 
 
    Figure 4 : XML file
    
 
-
    <?xml version="1.0"?>
+
    <?xml version="1.0"?>
 <myNS:Article xmlns:myNS="http://devedge.netscape.com/2002/de">
   <myNS:Title>My Article</myNS:Title>
   <myNS:Authors>
@@ -24,7 +24,7 @@ 
    Basic Example
    
 
 
    Figure 5 : XSLT Stylesheet
    
 
-
    <?xml version="1.0"?>
+
    <?xml version="1.0"?>
 <xsl:stylesheet version="1.0"
                    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
                    xmlns:myNS="http://devedge.netscape.com/2002/de">
@@ -92,7 +92,7 @@ 
    Basic Example
    
 
 
    Figure 6 : Example
    
 
-
    var xslStylesheet;
+
    var xslStylesheet;
 var xsltProcessor = new XSLTProcessor();
 var myDOM;