シンタックスハイライトをライブラリなしで簡単に！Custom Highlight APIの魅力 - コハム
Syntax Highlighting code snippets with Prism and the Custom Highlight API 記事は上記記事を意訳したものです。 ※当ブログでの翻訳記事は元サイト様に許可を得て掲載しています。 ウェブ上の構文ハイライトの一般的な仕組みは、すべてのトークンを要素で囲み、適切なクラスを割り当て、CSSを使って色付けすることです。 CSS Custom Highlight APIのおかげで、DOMツリーにを散りばめてカラー情報を追加するステップを省略できます。 Custom Highlight APIの基礎 ブラウザサポート 静的コードスニペットの構文ハイライト 仕組み ステップ1:セットアップ ステップ2:コードのトークン化 ステップ3:トークンとハイライトの関連付け Custom Highlight APIの欠点 制限されたスタイリングオ
TreeWalker - Web API | MDN
��Iڪ� Learn Learn web development Frontend developer course Getting started modules Core modules MDN Curriculum Check out the video course from Scrimba, our partner Learn HTML Structuring content with HTML module Learn CSS CSS styling basics module CSS layout module Learn JavaScript Dynamic scripting with JavaScript module
Making of: The Sanitizer API (Nullcon 2022)
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Deep-copying in JavaScript using structuredClone | Articles | web.dev
myShallowCopy.anotherProp.aNewProp = "a new value"; console.log(myOriginal.anotherProp.aNewProp) // ^ logs `a new value` The expression {...myOriginal} iterates over the (enumerable) properties of myOriginal using the Spread Operator. It uses the property name and value, and assigns them one by one to a freshly created, empty object. As such, the resulting object is identical in shape, but with it
Accessibility Object Model
The Web Platform has a long history of features that developers can use to make their web content accessible to users with disabilities, from the alt attribute on images to the entirety of [[!WAI-ARIA]]. Accessibility is used by a variety of assistive technologies, including screen readers and magnifiers for visually impaired users, and switch access software and speech-controlled software for mot
JavaScript Fetch API in action
In short, Fetch API- it's a new Promise- based standard for doing AJAX requests. Syntax for XHR was provided more then 10 years ago (XMLHttpRequest2 - about 4 years ago). Many things changed, we got HTML5, CSS3, also close to start using EcmaScript 6. From jQuery Deferred, $q and Native JavaScript Promises people became familiar and like promises in JS. It’s time for new laconic API to do AJAX-req
Measure the Critical Rendering Path | Articles | web.dev
Published: March 31, 2014 The foundation of every solid performance strategy is good measurement and instrumentation. You can't optimize what you can't measure. This guide explains different approaches for measuring critical rendering path (CRP) performance. The Lighthouse approach runs a series of automated tests against a page, and then generates a report on the page's CRP performance. This appr
A New SVG for SVG2 — Tab Completion
Last updated: Thursday, August 8 2013 Cameron McCormack, one of the chairs of the SVG Working Group, just posted some proposals for revamping the SVG DOM (Document Object Model - the JS API for interacting with the elements in the page). I think the ideas are pretty great! They boil down to a few basic proposals: Put all the SVG elements into the HTML namespaceThis is the core of the idea, and I'm
Web Platform Docs API used in Brackets · WebPlatform.org
Notice: The WebPlatform project, supported by various stewards between 2012 and 2015, has been discontinued. This site is now available on github. A basic goal of WebPlatform.org is to be the site where you can come for answers to your trickiest (and simplest) development and design questions about the Open Web Platform. Along with being a site, we also want to be a service -- or really to be of s
Using the Page Visibility API - Google Chrome - Google Code
Using the Page Visibility API The page visibility API is an experimental implementation of the webperf WGâs proposed page visibility API in new versions of Chrome (starting in version 13). It allows sites to detect whether they are being displayed to the user. Why youâd use it With tabbed browsing, thereâs a reasonable chance that any given web page is in the background and thus not visible
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sanitizer-api/explainer.md at main · WICG/sanitizer-api
Intent to Ship: Long Task API - Google Groups
HTTP Archive (HAR) format (Editor's Draft)