Web platform newsKeep up to date with the latest news from the major browser engines. Introducing BaselineAt Google I/O 2023 we announced Baseline, learn more about this initiative and why we think it's important.
Clipboard APIClipboardEventConstructorClipboardEvent()Instance propertiesclipboardData InheritanceEventRelated pages for Clipboard APIClipboardClipboardItemNavigator.clipboard The clipboardData property of the ClipboardEvent interface holds a DataTransfer object, which can be used to: specify what data should be put into the clipboard from the cut and copy event handlers, typically with a setData(
Service workers are a new browser feature that provide event-driven scripts that run independently of web pages. Unlike other workers, service workers can be shut down at the end of events, note the lack of retained references from documents, and they have access to domain-wide events such as network fetches. Service workers also have scriptable caches. Along with the ability to respond to network
The pre-loader (also known as the speculative or look-ahead pre-parser) may be the single biggest improvement ever made to browser performance. During their implementation Mozilla reported a 19% improvement in load times, and in a test against the Alexa top 2,000 sites Google found around a 20% improvement. It’s not a new browser feature but some seem to believe it’s Chrome only and yet others sug
A simple (proof-of-concept) script loader that caches scripts with localStorage Tweet Version 0.5.0: basket.js (2.2 kB) basket.min.js* (0.7 kB gzipped) basket.full.min.js (3.8 kB gzipped) CDN-Usage * = Use this version if you want to manually handle the rsvp.js dependency If you're seeing this message, something has gone wrong. Please ensure you are testing this page using a HTTP server. Introduct
More than 5,000 companies count on our digital courses and more to guide their teams through the tools and technologies that drive business outcomes. We can help yours too. New AI policy for O’Reilly authors and talent O’Reilly president Laura Baldwin shares the company’s ethical approach to leveraging GenAI tools and ensuring O’Reilly experts are compensated for their work. See it now It’s time t
はじめに この記事は、 JavaScript/ES6 promisesについてを理解するために読んだ方がよいと思われる記事やスライド等を紹介しています。 PromisesやDeferredといった言葉を非同期処理の話などで聞いた事があるかもしれませんが、 現在Promisesは次のECMAScriptの言語仕様として策定が進められています。 ECMAScript Language Specification ECMA-262 6th Edition – DRAFT domenic/promises-unwrapping まだES6は策定段階ですが、既にPromisesについてはpolyfillとして利用できるライブラリ等もあり、また他のライブラリ内でもjQuery.Deferred()やAngularの$q等類似する実装が存在します。 そのため、Generators等に比べると今すぐ使える
先週発売されたWEB+DB PRESS Vol.78のJavaScript連載にて、「フロントエンドの国際化」をテーマに記事を書きました! 内容はこんな感じです。 国際化の基本 I18NとL10N ロケール タイムゾーン フロントエンドにおける国際化 メッセージリソースの管理 数値や日付のフォーマット CLDRとICU JavaScriptにおける文字コードの罠 JavaScriptにおけるタイムゾーンの罠 JavaScript国際化関連ライブラリ i18next Numeral.js Moment.js & Moment Timezone ECMAScript 6 Internationalization API 前半ではソフトウェアの国際化で使われる基本概念と、最近のフロントエンド領域で国際化を行うときに課題となるポイントを解説しています。 中盤ではいくつかの定番ライブラリを紹介し、最
You can find (just about) anything on Medium — apparently even a page that doesn’t exist. Maybe these stories will take you somewhere new?
The way JavaScript handles Unicode is… surprising, to say the least. This write-up explains the pain points associated with Unicode in JavaScript, provides solutions for common problems, and explains how the ECMAScript 6 standard improves the situation. Unicode basics Before we take a closer look at JavaScript, let’s make sure we’re all on the same page when it comes to Unicode. It’s easiest to th
Some people say that when a butterfly lands on you it means good luck. However, in parts of England, people would traditionally rush around to kill the first butterfly of the year that they see, or else face a year of bad luck. The moral of the story is that people can be crazy. They can also surprise you, a lot like Object.observe() - a proposed feature for listening to any JavaScript object tha
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
処理を実行中です
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く