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misc: rewrite dom-size description #9821

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Oct 11, 2019
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5 changes: 1 addition & 4 deletions lighthouse-core/audits/dobetterweb/dom-size.js
Original file line number Diff line number Diff line change
Expand Up @@ -26,10 +26,7 @@ const UIStrings = {
/** Title of a diagnostic audit that provides detail on the size of the web page's DOM. The size of a DOM is characterized by the total number of DOM elements and greatest DOM depth. This imperative title is shown to users when there is a significant amount of execution time that could be reduced. */
failureTitle: 'Avoid an excessive DOM size',
/** Description of a Lighthouse audit that tells the user *why* they should reduce the size of the web page's DOM. The size of a DOM is characterized by the total number of DOM elements and greatest DOM depth. This is displayed after a user expands the section to see more. No character length limits. 'Learn More' becomes link text to additional documentation. */
description: 'Browser engineers recommend pages contain fewer than ' +
`~${MAX_DOM_ELEMENTS.toLocaleString()} DOM elements. The sweet spot is a tree ` +
`depth < ${MAX_DOM_TREE_DEPTH} elements and fewer than ${MAX_DOM_TREE_WIDTH} ` +
'children/parent element. A large DOM can increase memory usage, cause longer ' +
description: 'A large DOM will increase memory usage, cause longer ' +
'[style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), ' +
'and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size).',
/** Table column header for the type of statistic. These statistics describe how big the DOM is (count of DOM elements, children, depth). */
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2 changes: 1 addition & 1 deletion lighthouse-core/lib/i18n/locales/en-US.json
Original file line number Diff line number Diff line change
Expand Up @@ -522,7 +522,7 @@
"message": "Value"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | description": {
"message": "Browser engineers recommend pages contain fewer than ~1,500 DOM elements. The sweet spot is a tree depth < 32 elements and fewer than 60 children/parent element. A large DOM can increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size)."
"message": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size)."
},
"lighthouse-core/audits/dobetterweb/dom-size.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 element}\n other {# elements}\n }"
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2 changes: 1 addition & 1 deletion lighthouse-core/lib/i18n/locales/en-XL.json
Original file line number Diff line number Diff line change
Expand Up @@ -522,7 +522,7 @@
"message": "V̂ál̂úê"
},
"lighthouse-core/audits/dobetterweb/dom-size.js | description": {
"message": "B̂ŕôẃŝér̂ én̂ǵîńêér̂ś r̂éĉóm̂ḿêńd̂ ṕâǵêś ĉón̂t́âín̂ f́êẃêŕ t̂h́âń ~1,500 D̂ÓM̂ él̂ém̂én̂t́ŝ. T́ĥé ŝẃêét̂ śp̂ót̂ íŝ á t̂ŕêé d̂ép̂t́ĥ < 32 él̂ém̂én̂t́ŝ án̂d́ f̂éŵér̂ t́ĥán̂ 60 ćĥíl̂d́r̂én̂/ṕâŕêńt̂ él̂ém̂én̂t́. Â ĺâŕĝé D̂ÓM̂ ćâń îńĉŕêáŝé m̂ém̂ór̂ý ûśâǵê, ćâúŝé l̂ón̂ǵêŕ [ŝt́ŷĺê ćâĺĉúl̂át̂íôńŝ](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), án̂d́ p̂ŕôd́ûćê ćôśt̂ĺŷ [ĺâýôút̂ ŕêf́l̂óŵś](https://developers.google.com/speed/articles/reflow). [L̂éâŕn̂ ḿôŕê](https://web.dev/dom-size)."
"message": "Â ĺâŕĝé D̂ÓM̂ ẃîĺl̂ ín̂ćr̂éâśê ḿêḿôŕŷ úŝáĝé, ĉáûśê ĺôńĝér̂ [śt̂ýl̂é ĉál̂ćûĺât́îón̂ś](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), âńd̂ ṕr̂ód̂úĉé ĉóŝt́l̂ý [l̂áŷóût́ r̂éf̂ĺôẃŝ](https://developers.google.com/speed/articles/reflow). [Ĺêár̂ń m̂ór̂é](https://web.dev/dom-size)."
},
"lighthouse-core/audits/dobetterweb/dom-size.js | displayValue": {
"message": "{itemCount, plural,\n =1 {1 êĺêḿêńt̂}\n other {# él̂ém̂én̂t́ŝ}\n }"
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2 changes: 1 addition & 1 deletion lighthouse-core/test/results/sample_v2.json
Original file line number Diff line number Diff line change
Expand Up @@ -2648,7 +2648,7 @@
"dom-size": {
"id": "dom-size",
"title": "Avoids an excessive DOM size",
"description": "Browser engineers recommend pages contain fewer than ~1,500 DOM elements. The sweet spot is a tree depth < 32 elements and fewer than 60 children/parent element. A large DOM can increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size).",
"description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size).",
"score": 1,
"scoreDisplayMode": "numeric",
"numericValue": 31,
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2 changes: 1 addition & 1 deletion proto/sample_v2_round_trip.json
Original file line number Diff line number Diff line change
Expand Up @@ -502,7 +502,7 @@
"title": "Document has a `<title>` element"
},
"dom-size": {
"description": "Browser engineers recommend pages contain fewer than ~1,500 DOM elements. The sweet spot is a tree depth < 32 elements and fewer than 60 children/parent element. A large DOM can increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size).",
"description": "A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow). [Learn more](https://web.dev/dom-size).",
"details": {
"headings": [
{
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