Modernizing the DOM tree in Microsoft Edge
The DOM is the foundation of the web platform programming model, and its design and performance impacts the rest of the browser pipeline. However, its history and evolution is far from a simple story. Over the past three years, we’ve embarked on an in-flight refactoring of the DOM in Microsoft Edge, with our eye on a modernized architecture offering better real-world performance and reduced comple
Master the DOM
IntroductionMany web developers think the DOM is really difficult (or slow) and you need a huge framework to tame it. Then they invest a lot of their time to learn the framework. A year or two passes, another framework becomes popular and you need to learn everything from scratch. Repeat this a couple more times and JavaScript fatigue is born. Not to mention a huge pile of dependencies. What if I
IntersectionObserver/explainer.md at main · w3c/IntersectionObserver
This repo outlines an API that can be used to understand movement of DOM elements relative to another element or the browser top level viewport. Changes are delivered asynchronously and are useful for understanding the visibility of elements, managing pre-loading of DOM and data, as well as deferred loading of "below the fold" page content. The web's traditional position calculation mechanisms rel
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2015å¹´ã«ã‚‚ãªã‚‹ã®ã«JavaScriptã§ã®DOMæ“作ã®ãƒ‘フォーマンスã«ã¤ã„ã¦æ›¸ã。ウェブページã«ã‚¤ãƒ³ã‚¿ãƒ©ã‚¯ã‚·ãƒ§ãƒ³ã‚’æŒãŸã›ãŸã„時ã«ã€JavaScriptã§DOMæ“作を行ã†ã“ã¨ãŒã‚ˆãã‚る。ã“ã®DOMæ“作ã®ãƒ‘フォーマンスã«ã¤ã„ã¦ã€ã‚ˆãèžãæ„見を大別ã™ã‚‹ã¨æ¬¡ã®2ã¤ãŒã‚る。 JavaScriptã«ã‚ˆã‚‹DOMæ“作ã¯é‡ãŸã„ レンダリングãŒé‡ã„ã ã‘ã§ã€DOMæ“作ãã®ã‚‚ã®ã¯ãã‚Œã»ã©é‡ãŸããªã„ JavaScriptã§ã‚ªãƒ–ジェクトã®ãƒ—ãƒãƒ‘ティをæ“作ã—ãŸã‚Šã™ã‚‹å˜ä½“ã®å‡¦ç†ã¯é€šå¸¸1ミリ秒もã‹ã‹ã‚‰ãªã„ãŒã€DOMæ“作をã™ã‚‹ã¨ãƒ¬ãƒ³ãƒ€ãƒªãƒ³ã‚°ãŒå®Œäº†ã™ã‚‹ã¾ã§ã«æ•°åミリ秒程度ã‹ã‹ã£ãŸã‚Šã™ã‚‹å ´åˆãŒã‚る。1番目ã®DOMæ“作ãŒé‡ãŸã„ã¨è¨€ã£ã¦ã„る人ã¯çµŒé¨“則的ã«ãã†è¨€ã£ã¦ã„ã‚‹ã“ã¨ãŒå¤šã„。 レンダリングã®ä»•çµ„ã¿ã‚’知ã£ã¦ã„る人ã¯2番目ã®æ„見を言ã†ãŒã€é‡ç®±ã®éš…ã‚’ã¤ã¤ãよã†ãªè©±ã‚’ã™ã‚‹ã¨ã“れも必ãšã—ã‚‚æ£ã—ã„ã‚ã‘ã§ã¯ãªã„。DOMæ“作ã™ã‚‹ã‚³ãƒ¼ãƒ‰ã«ã‚ˆã£
Chrome 43ã‹ã‚‰DOMã®å±žæ€§ãŒJSã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ãƒã‚§ãƒ¼ãƒ³ã«ç§»è¡Œã—ã¾ã™ - Qiita
Chrome 43ãŠã‚ˆã³ãれ以é™ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã«ãŠã„ã¦ã€DOMã®å±žæ€§ï¼ˆå€¤ï¼‰ãŒJavaScriptã®ãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ãƒã‚§ãƒ¼ãƒ³ã«ç§»è¡Œã•ã‚Œã¾ã™ã€‚ã“ã‚Œã«ã‚ˆã‚Šã€çªã£è¾¼ã‚“ã ã“ã¨ã‚’ã‚„ã£ã¦ã„ãŸå ´åˆã«ã€ä»Šã¾ã§å‹•ä½œã—ã¦ã„ãŸã‚³ãƒ¼ãƒ‰ãŒå‹•ã‹ãªã„ã¨ã„ã†ã“ã¨ãŒç™ºç”Ÿã™ã‚‹å¯èƒ½æ€§ãŒã‚ã‚Šã¾ã™ã®ã§ã€äº‹å‰ã«å¤‰æ›´å†…容を知りã€å¯¾ç–ã‚’ã—ã¦ãŠãã“ã¨ãŒæ±‚ã‚られã¾ã™ã€‚HTML5Rockã®æ›´æ–°æƒ…å ±ã¨ã—ã¦æŽ²è¼‰ã•ã‚Œã¦ã„ã¾ã—ãŸã®ã§ã€ã•ã£ãã日本語訳をã—ã¦ã¿ã¾ã—ãŸã€‚心当ãŸã‚ŠãŒã‚ã‚‹æ–¹ã¯ã€ãœã²ä»¥ä¸‹ã®å†…容をèªã‚“ã§ã„ãŸã ã„ã¦ã€ã‚³ãƒ¼ãƒ‰ã®ä¿®æ£ãªã©ã«å–り込んã§ã„ãŸã ã‘ã‚Œã°ã¨æ€ã„ã¾ã™ã€‚ 原文: http://updates.html5rocks.com/2015/04/DOM-attributes-now-on-the-prototype DOM属性ã¯ä»Šå¾Œãƒ—ãƒãƒˆã‚¿ã‚¤ãƒ—ãƒã‚§ãƒ¼ãƒ³ã« Chromeãƒãƒ¼ãƒ ã¯ã€æœ€è¿‘「DOM属性をプãƒãƒˆã‚¿ã‚¤ãƒ—ãƒã‚§ãƒ¼ãƒ³ã«ç§»å‹•ã—ã¦ã„ã¾ã™ã€ã¨ã‚¢ãƒŠã‚¦ãƒ³ã‚¹ã—ã¦ã„
DOM Attributes now on the prototype chain  | Blog  | Chrome for Developers
The Chrome team recently announced that we are moving DOM properties to the prototype chain. This change, implemented in Chrome 43 - (Beta as of mid April 2015) - brings Chrome more in line with the Web IDL Spec and other browsers’ implementations, such as IE and Firefox. Edit: clarified  Older WebKit based browsers, are currently not compatible with the spec, however Safari now is. The new behav
ã€JavaScript】（基礎）親è¦ç´ ・åè¦ç´ ã®å–å¾—ãƒ»è¿½åŠ ã¾ã¨ã‚â‘¢ | unitopi - ユニトピ -
ã“ã‚“ã«ã¡ã¯ï¼ unitopi新米ライターã®ã€ã‚±ã‚¤ãƒ³ã§ã”ã–ã„ã¾ã™ã€‚ ã“ã®ã‚·ãƒªãƒ¼ã‚ºã‚‚最終回。今回もã€JavaScriptã«ãŠã„ã¦åŸºæœ¬çš„ã ã‘ã©å¿˜ã‚ŒãŒã¡ãªã€JavaScript（jQuery）ã«ãŠã‘る「親è¦ç´ ・åè¦ç´ ã®å–å¾—ãƒ»è¿½åŠ ï¼ˆå‰Šé™¤ï¼‰ã€ã«ã¤ã„ã¦ã€ä»Šå›žã¯ã€Œè¦ç´ ã®è¿½åŠ ã¨å‰Šé™¤ã€ã®ãŠè©±ã‚’ã•ã›ã¦ã„ãŸã ãã¾ã™ï¼ ã¡ãªã¿ã«ä»Šå›žã¯ã€èª¬æ˜Žã®ä»•æ–¹ãŒã“ã‚Œã¾ã§ã®ï¼’回ã¨ç•°ãªã‚‹ã‚¢ãƒ—ãƒãƒ¼ãƒã«ãªã£ã¦ã„ã‚‹ã®ã§ã€ãã®ç‚¹ã”承知ãŠããã ã•ã„ï¼ï¼ˆâ€»ãªãœãªã‚‰ç´¹ä»‹ã™ã‚‹é‡ãŒå¤šãã†ã ã‹ã‚‰ã§ã™â€¦ï¼‰ ※サンプルコードã¯ã€ã€ŒJSã€ã‚¿ãƒ–や「HTMLã€ã‚¿ãƒ–ãªã©ã‚’交互ã«è¦‹ã¦ã„ã£ã¦ãã ã•ã„ãï¼ â€»ã“ã®ã‚·ãƒªãƒ¼ã‚ºã®ã“ã‚Œã¾ã§ã®è¨˜äº‹ã¯ã€Œãã®â‘ ã€åŠã³ãã®â‘¡ã«ãªã‚Šã¾ã™ã€‚ã¾ã ã”覧ã«ãªã£ã¦ã„ãªã„æ–¹ã§ã€åˆã‚ã›ã¦å‹‰å¼·ã—ãŸã„æ–¹ã¯ãœã²ã”覧ãã ã•ã„ãï¼ ã€JavaScriptã®å ´åˆã€‘ jQueryã«æ¯”ã¹ã‚‹ã¨å°‘ãªã„ã§ã™ãŒã€ãã‚Œãªã‚Šã«è¡¨ç¾æ–¹æ³•ã®æ•°ãŒã‚ã‚Šã¾ã™ã®ã§ã€ã©ã‚“ãªã‚‚ã®ãŒã‚ã‚‹ã‹ã€ä¸€è¦§ã‚’
DOM Performance (JSNext Bulgaria)
In the client-side development we manipulate the DOM very often. Some of these manipulations take some time to execute, others take even more time. In a complicated JS-based software, it is very important to find the optimal approaches in order to get best performance. We will meet few very common cases, where standard DOM manipulations are very expensive, and we will see what is the optimal way t
In the DOM, no one will hear you scream
The document discusses the history and development of the Document Object Model (DOM) from its early implementations in 1995 to modern standards. It outlines key milestones like DOM Level 1 in 1998, the rise of JavaScript frameworks like Prototype, jQuery and MooTools in 2005-2006, and ongoing work by the W3C and WHATWG. The talk will explore security issues that can arise from the DOM's ability t
爆速HTML – Elmã§ã®ä»®æƒ³DOM | POSTD
æ–°ãŸãª elm-html ライブラリã§ã¯ã€HTMLã¨CSSã‚’Elmã§ç›´æŽ¥ä½¿ç”¨ã§ãã¾ã™ã€‚FlexBoxも使ã£ã¦ã¿ãŸã„ã—ã€æ—¢å˜ã®ã‚¹ã‚¿ã‚¤ãƒ«ã‚·ãƒ¼ãƒˆã‚‚使ã„続ã‘ãŸã„ã§ã™ã‹ï¼Ÿã€€Elmã¯ä½¿ã„ã‚„ã™ããªã‚Šã€å‡¦ç†ãŒ 速ã ãªã‚Šã¾ã—ãŸã€‚例ãˆã°ã€ TodoMVC アプリをå†ä½œæˆã™ã‚‹å ´åˆã€Elm㮠コード ã¯ã¨ã¦ã‚‚å˜ç´”ã§ã€ 事å‰ã®ãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ ã§ã‚‚ã€ä»–ã®äººæ°—ライブラリã«æ¯”ã¹å‡¦ç†é€Ÿåº¦ãŒæ¥µç«¯ã«é€Ÿã„ã¨ã„ã†çµæžœãŒå‡ºã¦ã„ã¾ã™ã€‚ elm-html ã¨Mercuryã¯ã€ã©ã¡ã‚‰ã‚‚ virtual-dom プãƒã‚¸ã‚§ã‚¯ãƒˆã‚’基ã«ã—ã¦ã„ã‚‹ã®ã§ã€ãƒ‘フォーマンスãŒå„ªã‚Œã¦ã„ã¾ã™ã€‚ã“ã®è¨˜äº‹ã§ã¯ã€å‰åŠã§â€œä»®æƒ³DOMâ€ã¨ã¯ä½•ã‹ã€ 純粋性 㨠ä¸å¤‰æ€§ ã«ã‚ˆã£ã¦ã„ã‹ã«å‡¦ç†é€Ÿåº¦ãŒä¸ŠãŒã‚‹ã‹ã¨ã„ã†ã“ã¨ã«ã¤ã„ã¦è©³ã—ã検証ã—ã¾ã™ã€‚ã“ã®æ¤œè¨¼ã«ã‚ˆã£ã¦ã€ãªãœOmã€Mercuryã€ElmãŒãƒ™ãƒ³ãƒãƒžãƒ¼ã‚¯ã§ã“ã®ã‚ˆã†ãªç´ 晴らã—ã„æ•°å—を出ã—ãŸã‹ãŒåˆ†ã‹ã‚‹ã§ã—ょã†ã€‚ パフォーマンスã¯äºº
HTML(.js) - Befriend the DOM!
Intuitive HTML lets you navigate, manipulate and use the DOM with intuitive, readable, consistent code. Powerful HTML's functions enable you to flexibly use all native DOM features with brevity, clarity, and more power than ever. HTML document.documentElement The global HTML is the actual document root element and all element tags queried via the dot operator are descendants. HTML.tag... Element|A
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