JavaScript PrimerのES2025対応を手伝ってくれるContributorとSponsorを募集しています
JavaScript Primer (https://jsprimer.net/) では、毎年ECMAScriptの新しい仕様への追従を行っています。 ES2025はもうすでにリリース候補が公開されていて、2025年6月に正式リリースされる予定です。 Release ES2025 Candidate April 23rd 2025 · tc39/ecma262 今年もES2025で追加される機能についての対応Issueを作成しました。 これらのIssueを一緒に進めてくれるContributorと、JavaScript Primerの活動を支援してくれるSponsorを募集しています。 ES2025対応のIssue ES2025のMeta Issueとして次のIssueがあります ES2025の対応 · Issue #1778 · asciidwango/js-primer 具体的に対応す
GitHub - slevithan/oniguruma-to-es: Convert patterns from Oniguruma (the regex flavor used by Ruby, TextMate grammars, etc.) to native JavaScript RegExp
“I think [Oniguruma-To-ES] is very wonderful” — K. Kosako, creator of Oniguruma Oniguruma is a regular expression engine written in C that's used in Ruby (via a fork named Onigmo), PHP (mb_ereg, etc.), TextMate grammars (used by VS Code, Shiki, etc. for syntax highlighting), and many other tools. Oniguruma-To-ES is an advanced Oniguruma to JavaScript regex translator that runs in the browser or th
Shipping Temporal
The Temporal proposal provides a replacement for Date, a long standing pain-point in the JavaScript language. This blog post describes some of the history and motivation behind the proposal. The Temporal API itself is well docmented on MDN. Temporal reached Stage 3 of the TC39 process in March 2021. Reaching Stage 3 means that the specification is considered complete, and that the proposal is read
Accelerating Large-Scale Test Migration with LLMs
By: Charles Covey-Brandt Airbnb recently completed our first large-scale, LLM-driven code migration, updating nearly 3.5K React component test files from Enzyme to use React Testing Library (RTL) instead. We’d originally estimated this would take 1.5 years of engineering time to do by hand, but — using a combination of frontier models and robust automation — we finished the entire migration in jus
あらためて理解するArrayBuffer - JavaScriptでバイナリデータを扱う方法 - ICS MEDIA
配列（Array）との比較 JavaScriptにはTypedArrayとは別に配列（Array）の違いを説明します。 ArrayはTypedArrayと比べると柔軟で汎用性が高いです。しかし、Arrayは内部で動的なメモリー管理を行うため、データ処理や転送を高い頻度で行う場合にはオーバーヘッドが発生する可能性があります。 TypedArrayは長さが固定であり、バイト単位のデータ格納が可能なため、メモリーアクセスが効率的に行われます。数値計算においてもバイナリデータを直接操作できるので、高いパフォーマンスが期待できます。また、メモリー領域が連続しているので高速なデータの転送が可能です。 大量のデータを処理する数値計算の場合にはTypedArrayで管理するとデータのまとめた取り回しが楽になります。逆にデータの規模が小さい時は汎用的なArrayが良いでしょう。 TypedArrayは決まっ
Material UI v7 is here 🚀 - MUI
Ready-to-use foundational React components, free forever.
Turborepo 2.5 | Turborepo
Turborepo 2.5 includes a number of improvements to enhance your repository: Sidecar tasks: Use with to ensure persistent tasks always run together Flexibility for --continue: Only continue running tasks when dependencies are successful turbo.jsonc: Write comments directly in your configuration file prune for Bun: You can now use turbo prune in Bun repositories $TURBO_ROOT$: Reference the Workspace
Land ahoy: leaving the Sea of Nodes · V8
V8’s end-tier optimizing compiler, Turbofan, is famously one of the few large-scale production compilers to use Sea of Nodes (SoN). However, since almost 3 years ago, we’ve started to get rid of Sea of Nodes and fall back to a more traditional Control-Flow Graph (CFG) Intermediate Representation (IR), which we named Turboshaft. By now, the whole JavaScript backend of Turbofan uses Turboshaft inste
Modern Cookie Management with the Cookie Store API
Learn how the Cookie Store API modernizes cookie management with async operations and event handling for efficient, error-free web development. The browser Cookie Store API represents a modern approach to handling cookies in web applications. The way we’ve always done it is using document.cookie which is error-prone because you have to work with key/value pairs in a string. Besides being error-pro
New URLPattern API brings improved pattern matching to Node.js and Cloudflare Workers
New URLPattern API brings improved pattern matching to Node.js and Cloudflare Workers2025-03-24 Today, we are excited to announce that we have contributed an implementation of the URLPattern API to Node.js, and it is available starting with the v23.8.0 update. We've done this by adding our URLPattern implementation to Ada URL, the high-performance URL parser that now powers URL handling in both No
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Release 3.42.0 - 2025.04.30 · zloirock/core-js
JavaScript Primer をNotebookLMに入れて読んだりPodcastにしたりする方法 · asciidwango/js-primer · Discussion #1794
GitHub - andrewmd5/hako: An embeddable, lightweight, secure, high-performance JavaScript engine.
Release Release v1.9.0 · axios/axios
GitHub - Ray-D-Song/lexe: Package your Node.js application into a single executable file, but only 10MB.🔥
GitHub - MijinkoSD/kuromoji.ts: TypeScript implementation of Japanese morphological analyzer
GitHub - holepunchto/bare: Small and modular JavaScript runtime for desktop and mobile
GitHub - bytecodealliance/StarlingMonkey: The StarlingMonkey JS runtime
GitHub - harrysolovay/standard-json-schema: Turn standard types into JSON schemas
Release 8.5.0 — Flow Splitter · google/zx
