doc: add default values to functions in fs.md

PR-URL: nodejs#13767
Refs: nodejs#11135
Refs: nodejs#13769
Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>

doc/api/fs.md

@@ -437,7 +437,7 @@ changes:
 -->
 
 * `path` {string|Buffer|URL}
-* `mode` {integer}
+* `mode` {integer} **Default:** `fs.constants.F_OK`
 * `callback` {Function}
 
 Tests a user's permissions for the file or directory specified by `path`.
@@ -563,7 +563,7 @@ changes:
 -->
 
 * `path` {string|Buffer|URL}
-* `mode` {integer}
+* `mode` {integer} **Default:** `fs.constants.F_OK`
 
 Synchronous version of [`fs.access()`][]. This throws if any accessibility
 checks fail, and does nothing otherwise.
@@ -587,9 +587,9 @@ changes:
 * `file` {string|Buffer|number} filename or file descriptor
 * `data` {string|Buffer}
 * `options` {Object|string}
-  * `encoding` {string|null} default = `'utf8'`
-  * `mode` {integer} default = `0o666`
-  * `flag` {string} default = `'a'`
+  * `encoding` {string|null} **Default:** `'utf8'`
+  * `mode` {integer} **Default:** `0o666`
+  * `flag` {string} **Default:** `'a'`
 * `callback` {Function}
 
 Asynchronously append data to a file, creating the file if it does not yet exist.
@@ -630,9 +630,9 @@ changes:
 * `file` {string|Buffer|number} filename or file descriptor
 * `data` {string|Buffer}
 * `options` {Object|string}
-  * `encoding` {string|null} default = `'utf8'`
-  * `mode` {integer} default = `0o666`
-  * `flag` {string} default = `'a'`
+  * `encoding` {string|null} **Default:** `'utf8'`
+  * `mode` {integer} **Default:** `0o666`
+  * `flag` {string} **Default:** `'a'`
 
 The synchronous version of [`fs.appendFile()`][]. Returns `undefined`.
 
@@ -1136,7 +1136,7 @@ added: v0.1.96
 
 Synchronous fsync(2). Returns `undefined`.
 
-## fs.ftruncate(fd, len, callback)
+## fs.ftruncate(fd[, len], callback)
 <!-- YAML
 added: v0.8.6
 changes:
@@ -1147,7 +1147,7 @@ changes:
 -->
 
 * `fd` {integer}
-* `len` {integer} default = `0`
+* `len` {integer} **Default:** `0`
 * `callback` {Function}
 
 Asynchronous ftruncate(2). No arguments other than a possible exception are
@@ -1194,13 +1194,13 @@ fs.ftruncate(fd, 10, (err) => {
 
 The last three bytes are null bytes ('\0'), to compensate the over-truncation.
 
-## fs.ftruncateSync(fd, len)
+## fs.ftruncateSync(fd[, len])
 <!-- YAML
 added: v0.8.6
 -->
 
 * `fd` {integer}
-* `len` {integer} default = `0`
+* `len` {integer} **Default:** `0`
 
 Synchronous ftruncate(2). Returns `undefined`.
 
@@ -1392,7 +1392,7 @@ changes:
 -->
 
 * `path` {string|Buffer|URL}
-* `mode` {integer}
+* `mode` {integer} **Default:** `0o777`
 * `callback` {Function}
 
 Asynchronous mkdir(2). No arguments other than a possible exception are given
@@ -1409,7 +1409,7 @@ changes:
 -->
 
 * `path` {string|Buffer|URL}
-* `mode` {integer}
+* `mode` {integer} **Default:** `0o777`
 
 Synchronous mkdir(2). Returns `undefined`.
 
@@ -1428,7 +1428,7 @@ changes:
 
 * `prefix` {string}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 * `callback` {Function}
 
 Creates a unique temporary directory.
@@ -1490,7 +1490,7 @@ added: v5.10.0
 
 * `prefix` {string}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 
 The synchronous version of [`fs.mkdtemp()`][]. Returns the created
 folder path.
@@ -1510,7 +1510,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `flags` {string|number}
-* `mode` {integer}
+* `mode` {integer} **Default:** `0o666`
 * `callback` {Function}
 
 Asynchronous file open. See open(2). `flags` can be:
@@ -1552,7 +1552,7 @@ The file is created if it does not exist.
 * `'ax+'` - Like `'a+'` but fails if `path` exists.
 
 `mode` sets the file mode (permission and sticky bits), but only if the file was
-created. It defaults to `0666`, readable and writable.
+created. It defaults to `0o666`, readable and writable.
 
 The callback gets two arguments `(err, fd)`.
 
@@ -1599,7 +1599,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `flags` {string|number}
-* `mode` {integer}
+* `mode` {integer} **Default:** `0o666`
 
 Synchronous version of [`fs.open()`][]. Returns an integer representing the file
 descriptor.
@@ -1658,7 +1658,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 * `callback` {Function}
 
 Asynchronous readdir(3).  Reads the contents of a directory.
@@ -1682,7 +1682,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 
 Synchronous readdir(3). Returns an array of filenames excluding `'.'` and
 `'..'`.
@@ -1715,8 +1715,8 @@ changes:
 
 * `path` {string|Buffer|URL|integer} filename or file descriptor
 * `options` {Object|string}
-  * `encoding` {string|null} default = `null`
-  * `flag` {string} default = `'r'`
+  * `encoding` {string|null} **Default:** `null`
+  * `flag` {string} **Default:** `'r'`
 * `callback` {Function}
 
 Asynchronously reads the entire contents of a file. Example:
@@ -1775,8 +1775,8 @@ changes:
 
 * `path` {string|Buffer|URL|integer} filename or file descriptor
 * `options` {Object|string}
-  * `encoding` {string|null} default = `null`
-  * `flag` {string} default = `'r'`
+  * `encoding` {string|null} **Default:** `null`
+  * `flag` {string} **Default:** `'r'`
 
 Synchronous version of [`fs.readFile()`][]. Returns the contents of the `path`.
 
@@ -1811,7 +1811,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 * `callback` {Function}
 
 Asynchronous readlink(2). The callback gets two arguments `(err,
@@ -1834,7 +1834,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 
 Synchronous readlink(2). Returns the symbolic link's string value.
 
@@ -1886,7 +1886,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 * `callback` {Function}
 
 Asynchronous realpath(3). The `callback` gets two arguments `(err,
@@ -1924,7 +1924,7 @@ changes:
 
 * `path` {string|Buffer|URL}
 * `options` {string|Object}
-  * `encoding` {string} default = `'utf8'`
+  * `encoding` {string} **Default:** `'utf8'`
 
 Synchronous realpath(3). Returns the resolved path.
 
@@ -2067,7 +2067,7 @@ changes:
 
 * `target` {string|Buffer|URL}
 * `path` {string|Buffer|URL}
-* `type` {string}
+* `type` {string} **Default:** `'file'`
 * `callback` {Function}
 
 Asynchronous symlink(2). No arguments other than a possible exception are given
@@ -2098,11 +2098,11 @@ changes:
 
 * `target` {string|Buffer|URL}
 * `path` {string|Buffer|URL}
-* `type` {string}
+* `type` {string} **Default:** `'file'`
 
 Synchronous symlink(2). Returns `undefined`.
 
-## fs.truncate(path, len, callback)
+## fs.truncate(path[, len], callback)
 <!-- YAML
 added: v0.8.6
 changes:
@@ -2113,20 +2113,20 @@ changes:
 -->
 
 * `path` {string|Buffer}
-* `len` {integer} default = `0`
+* `len` {integer} **Default:** `0`
 * `callback` {Function}
 
 Asynchronous truncate(2). No arguments other than a possible exception are
 given to the completion callback. A file descriptor can also be passed as the
 first argument. In this case, `fs.ftruncate()` is called.
 
-## fs.truncateSync(path, len)
+## fs.truncateSync(path[, len])
 <!-- YAML
 added: v0.8.6
 -->
 
 * `path` {string|Buffer}
-* `len` {integer} default = `0`
+* `len` {integer} **Default:** `0`
 
 Synchronous truncate(2). Returns `undefined`. A file descriptor can also be
 passed as the first argument. In this case, `fs.ftruncateSync()` is called.
@@ -2171,7 +2171,7 @@ added: v0.1.31
 -->
 
 * `filename` {string|Buffer}
-* `listener` {Function}
+* `listener` {Function|undefined} **Default:** `undefined`
 
 Stop watching for changes on `filename`. If `listener` is specified, only that
 particular listener is removed. Otherwise, *all* listeners are removed,
@@ -2254,14 +2254,14 @@ changes:
 * `filename` {string|Buffer|URL}
 * `options` {string|Object}
   * `persistent` {boolean} Indicates whether the process should continue to run
-    as long as files are being watched. default = `true`
+    as long as files are being watched. **Default:** `true`
   * `recursive` {boolean} Indicates whether all subdirectories should be
     watched, or only the current directory. This applies when a directory is
-    specified, and only on supported platforms (See [Caveats][]). default =
+    specified, and only on supported platforms (See [Caveats][]). **Default:**
     `false`
   * `encoding` {string} Specifies the character encoding to be used for the
-     filename passed to the listener. default = `'utf8'`
-* `listener` {Function}
+     filename passed to the listener. **Default:** `'utf8'`
+* `listener` {Function|undefined} **Default:** `undefined`
 
 Watch for changes on `filename`, where `filename` is either a file or a
 directory.  The returned object is a [`fs.FSWatcher`][].
@@ -2361,8 +2361,8 @@ changes:
 
 * `filename` {string|Buffer|URL}
 * `options` {Object}
-  * `persistent` {boolean}
-  * `interval` {integer}
+  * `persistent` {boolean} **Default:** `true`
+  * `interval` {integer} **Default:** `5007`
 * `listener` {Function}
 
 Watch for changes on `filename`. The callback `listener` will be called each
@@ -2510,9 +2510,9 @@ changes:
 * `file` {string|Buffer|integer} filename or file descriptor
 * `data` {string|Buffer|Uint8Array}
 * `options` {Object|string}
-  * `encoding` {string|null} default = `'utf8'`
-  * `mode` {integer} default = `0o666`
-  * `flag` {string} default = `'w'`
+  * `encoding` {string|null} **Default:** `'utf8'`
+  * `mode` {integer} **Default:** `0o666`
+  * `flag` {string} **Default:** `'w'`
 * `callback` {Function}
 
 Asynchronously writes data to a file, replacing the file if it already exists.
@@ -2560,9 +2560,9 @@ changes:
 * `file` {string|Buffer|integer} filename or file descriptor
 * `data` {string|Buffer|Uint8Array}
 * `options` {Object|string}
-  * `encoding` {string|null} default = `'utf8'`
-  * `mode` {integer} default = `0o666`
-  * `flag` {string} default = `'w'`
+  * `encoding` {string|null} **Default:** `'utf8'`
+  * `mode` {integer} **Default:** `0o666`
+  * `flag` {string} **Default:** `'w'`
 
 The synchronous version of [`fs.writeFile()`][]. Returns `undefined`.