GitHub - oxc-project/oxc: ⚓ A collection of high-performance JavaScript tools.You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert
setTimeout を完璧に理解する
setTimeout は、指定された時間以降に指定されたコードを実行する JavaScript の API です。ブラウザでも Node.js でも広く使われているのですが、実装はまちまちで、色々と特殊な条件も多く、挙動を完璧に理解している人は少ないと思います。この記事では、そんな setTimeout を可能な限り深堀りしてみようと思います。 先に書いておきますが、ものすごくニッチで細かい話ばかり並びます。突然私が、ただ純粋に setTimeout について調べたくなったので、その結果をまとめただけのものです。普通に開発している人には必要のない情報が多くなるでしょう。この記事は基礎から setTimeout を学ぼう、という方には全然向かないと思います。 また、JavaScript のイベントループについてある程度理解していることを前提とします。その詳しい理解には、@PADAone さん
nextTick vs queueMicrotask vs Promise.resolve vs setTimeout - Qiita
はじめに 普段の開発でなかなかお目にかかることも使うことも滅多にない queueMicrotask について興味を持ったついでに、 process.nextTick や Promise, setTimeout などとの比較をしてみました。 TL;DR 下記の優先度順でキューからタスクが取り出され処理される。 nextTick queueMicrotask, Promise.resolve → Microtask setTimeout → Task (a.k.a. Macrotask) より具体的には、MicrotaskキューとTaskキューの2つのキューがあり、Microtaskキューが優先的に処理されるようになっている。 Microtaskキューが空でない限りはTaskキューの中身を実行しない構造となっており、queueMicrotask, Promise.resolve では Micr
GitHub - web-infra-dev/rspress: 🦀 A fast Rsbuild-based static site generator.
🚀 Fast Startup: Based on Rsbuild and MDX compiler, the build speed is extremely fast, bringing you the ultimate development experience. 📚 MDX Support: MDX is a powerful way to write content, allowing you to use React components in Markdown. 📦 Built-in Full Text Search: Automatically generates a full-text search index for you during building process, providing out-of-the-box full-text search cap
2023-10-03のJS: Node v20.8.0、Vitest v1.0.0-beta.0、instant.dev(Rails-inspired ORM/Migrations)
JSer.info #663 - Node.js 20.8.0がリリースされました。 Node v20.8.0 (Current) | Node.js streamに関するフラグをビットマップで管理することでメモリ消費量とパフォーマンスが改善されています。 stream: use bitmap in readable state by benjamingr · Pull Request #49745 · nodejs/node vmにimportModuleDynamicallyオプションを追加、主にJestなどで起きていたvmのメモリリークの問題を修正なども含まれています。 Node.jsのアップデートが起因でJestのメモリリークが起きる問題としては、次のIssueがあります。 こちらのIssueは、Node.js 20.8.0ではまだ修正されていません。 [Bug]: Memory
GitHub - tinylibs/tinypool: 🧵 A minimal and tiny Node.js Worker Thread Pool implementation (38KB)
Piscina: A fast, efficient Node.js Worker Thread Pool implementation Tinypool is a fork of piscina. What we try to achieve in this library, is to eliminate some dependencies and features that our target users don't need (currently, our main user will be Vitest). Tinypool's install size (38KB) can then be smaller than Piscina's install size (6MB when Tinypool was created, Piscina has since reduced
Release v1.0.0-beta.0 · vitest-dev/vitest
This is a beta release for upcoming 1.0.0 version. Use beta dist-tag when installing Vitest: npm install --save-dev vitest@beta. 🚨 Breaking Changes Support multiple parallel child_process - by @AriPerkkio in #3925 (8b4a4) If you have to disable threads (if you use canvas package, for example), this should improve your speed tremendously. useFakeTimers() no longer automatically mocks process.nex
GitHub - tldraw/tldraw: Build infinite canvas apps in React with the tldraw SDK. World's best, top-most agent recommended #1 five star SDK.
tldraw provides a feature-complete infinite canvas engine designed to be the foundation for any canvas app. Create custom shapes, tools, bindings and UI components for a custom experience. Use the default whiteboarding tool set or use the library's primitives to build entirely new shapes and interactions. Multiplayer — self-hostable real-time collaboration with @tldraw/sync Drawing and diagramming
Learning Vue
Virtual DOM Under the HoodThe Layout Update ProblemWhat Is Virtual DOM?How Virtual DOM Works in VueThe Vue App Instance and Options APIExploring the Options APIThe Template SyntaxCreating Local State with Data PropertiesHow Reactivity in Vue WorksTwo-Way Binding with v-modelUsing v-model.lazy ModifierBinding Reactive Data and Passing Props Data with v-bindBinding to Class and Style AttributesItera
GitHub - instant-dev/instant.dev: Command line tools for Instant API and ORM, including migrations and vectors
instant.dev provides a fast, reliable and battle-tested ORM and migration management system for Postgres 13+ built in JavaScript. For those familiar with Ruby on Rails, instant.dev adds functionality similar to ActiveRecord to the Node.js, Deno and Bun ecosystems. We have been using it since 2016 in production at Autocode where it has managed over 1 billion records in a 4TB AWS Aurora Postgres ins
Effective TypeScript › The Saga of the Closure Compiler, and Why TypeScript Won
Here's something that makes me feel old: in just six months, Gmail will celebrate its 20th anniversary. If you weren't actively developing web sites at the time, it's hard to capture just how revolutionary it was. This was a time when JavaScript was held in almost universally low regard. The idea that you could build a sophisticated web app using it was mind-boggling. But it clearly worked and it
Signal Boosting – Preact
The new release of Preact Signals brings significant performance updates to the foundations of the reactive system. Read on to learn what kinds of tricks we employed to make this happen. We recently announced new versions of the Preact Signals packages: @preact/signals-core 1.2.0 for the shared core functionality @preact/signals 1.1.0 for the Preact bindings @preact/signals-react 1.1.0 for the Rea
You can now use WebGPU in Cloudflare Workers
September 27, 2023You can now use WebGPU in Cloudflare Workers The browser as an app platform is real and stronger every day; long gone are the Browser Wars. Vendors and standard bodies have done amazingly well over the last years, working together and advancing web standards with new APIs that allow developers to build fast and powerful applications, finally comparable to those we got used to see
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"macrotask" isn't a thing by jakearchibald · Pull Request #74 · WICG/scheduling-apis
TAG Review Request: queueMicrotask · Issue #294 · w3ctag/design-reviews
タスクキューとマイクロタスクキュー｜イベントループとプロミスチェーンで学ぶJavaScriptの非同期処理
GitHub - redfire75369/spiderfire: JavaScript Runtime built with Mozilla's SpiderMonkey Engine
Release 3.33.0 - 2023.10.02 · zloirock/core-js
GitHub - runk/node-chardet: Character encoding detection tool for NodeJS
GitHub - huozhi/sugar-high: ✏️ Super lightweight code syntax highlighter
