GitHub - TanStack/charts: A tiny TypeScript visualization grammar for responsive, accessible, server-rendered charts—powered by granular D3 primitives.
Most chart libraries are easy until the chart stops being standard. TanStack Charts gives you one typed grammar that can grow from a familiar line or bar chart into a product-specific visualization without replacing your data model or dropping down to a separate API. Keep your data as it is. Marks consume arrays, objects, tuples, and iterables directly. Different layers can use different datum typ
Web Streams API 入門 ― 基本概念から実践まで
こんにちは、tasshi です。 この記事では、JavaScriptでストリーム処理を行うための標準API「Web Streams API（Streams API）」について、基本概念から実践的な使い方、Node.js Streamとの違いまでを解説します。 本記事は、TSKaigi 2025で発表した「Web Streams APIの基本と実践、TypeScriptでの活用法」をベースに、現在のブラウザ対応状況などを踏まえて記事として再構成したものです。 ストリームとは何か Web Streams APIの話に入る前に、まず「ストリーム」という概念について整理します。 ストリームとは、データ入出力を逐次的に、効率よく扱うためのデータ構造です。 データをより細かく分割された単位（チャンク）の連続した流れとして表現します。 ストリーム自体は昔からある概念で、多くの開発言語でストリーム操作のイ
Cloudflare Workers and Containers now support inbound TCP connections and gRPC
August 3, 2026Cloudflare Workers and Containers now support inbound TCP connections and gRPC AI is changing how people interact with computers, and voice is becoming an increasingly important part of that shift. Real-time assistants, AI-powered dictation, and other voice interfaces need low-latency communication between clients, models, and supporting services. Many developers use gRPC, a Remote P
GitHub - octanejs/octane: React’s programming model, compiled. The successor to Inferno, carrying its performance-first goal forward:
Octane is a fast JavaScript UI framework, and the successor to Inferno. You write components with the React API you already know, and a compiler turns them into direct DOM code before they ship. No virtual DOM, no rules-of-hooks bookkeeping, and no dependency arrays to maintain by hand. Created by Dominic Gannaway, who also created Inferno and has worked on React, Lexical, Ripple, and Svelte. Your
Your Worker can now have its own cache in front of it
Your Worker can now have its own cache in front of it2026-07-06 Today we are launching Workers Cache: a tiered cache that sits in front of your Worker, configured by a single line of Wrangler config and the same Cache-Control headers you already know. When Workers Cache is enabled, every cacheable request to your Worker hits Cloudflare's cache first. If there's a fresh cached response, Cloudflare
Wordgard
Wordgard [wɜrd-gɑrd] noun A garden for cultivating words. Open-source JavaScript library implementing an in-browser rich-text editor. Semantic Rich Text Editor System Wordgard provides a set of tools for building content editors. It is not a free-form HTML editor, but one where you control precisely what kind of content you support. Its main distinguishing feature is a powerful programming interfa
GitHub - jayu/rev-dep: Dependency analysis and optimization toolkit for modern JavaScript and TypeScript codebases. Enforce dependency graph hygiene and remove unused code with a very fast CLI.
As codebases scale, maintaining a mental map of dependencies becomes impossible. Rev-dep is a high-speed static analysis tool designed to enforce architecture integrity and dependency hygiene across large-scale JS/TS projects. Think of Rev-dep as a high-speed linter for your dependency graph. Consolidate fragmented, sequential checks from multiple slow tools into a single, high-performance engine.
Release 1.0.0 🎉 · hunvreus/basecoat
Basecoat 1.0.0 is the first stable release of Basecoat as a Tailwind CSS, vanilla HTML, CSS, and JavaScript implementation of shadcn/ui's visual language for non-React stacks. This is a large release. It reshapes the package, public component APIs, style system, JavaScript lifecycle, docs, and template story around a stable 1.0 foundation. What is Basecoat? Basecoat brings the shadcn/ui look and c
Prettier 3.9: Major parser upgrades and Formatting improvements · Prettier
We are excited to announce Prettier 3.9! This release brings major parser upgrades for Markdown, YAML, Flow, GraphQL, and Angular, along with formatting improvements for JavaScript and TypeScript (particularly in --no-semi mode). If you find Prettier valuable, please consider sponsoring us on OpenCollective or supporting the upstream projects we rely on. Your contributions help us keep improving t
On Rendering Diffs
ON RENDERING DIFFS Posted on May 29, 2026 by @amadeus ██████╗ ██╗███████╗███████╗███████╗ ██╔══██╗██║██╔════╝██╔════╝██╔════╝ ██████████╗ ██║ ██║██║█████╗ █████╗ ███████╗ ╚═════════╝ ██║ ██║██║██╔══╝ ██╔══╝ ╚════██║ ██████╔╝██║██║ ██║ ███████║ ╚═════╝ ╚═╝╚═╝ ╚═╝ ╚══════╝ ██╗ ██████╗ ██╗███████╗███████╗███████╗ ██║ ██╔══██╗██║██╔════╝██╔════╝██╔════╝ ██████████╗ ██║ ██║██║█████╗ █████╗ ███████╗ ╚══
基本からしっかり学ぶフロントエンドテスト入門 | 技術評論社
概要 AIによるコード生成が現実となった今、ソフトウェアテストの重要性はますます高まっています。AIエージェントの能力を最大限に発揮する上でも、テスト自動化などを含む開発基盤の整備は必須のものになってくるでしょう。本書では、フロントエンド開発の現場で効果的にテストを導入・運用するための力を身に付けることを目的に、フロントエンドテストの全体像を基礎から体系的に解説します。テストの意義や種類といった基礎から始まり、静的テスト、ロジックテスト、コンポーネントテスト、E2Eテスト、そしてビジュアルリグレッションテスト（VRT）まで幅広くカバー。さらに、Storybookを活用したテスト手法やAPI通信を含む実践的なケース、テスト戦略の設計、そして現場視点でのAI活用ノウハウまでを丁寧に解説します。フロントエンド開発におけるテストを本格的に学びたい方に最適な一冊です。 目次 第1章 フロントエンドテ
Oxlintのカスタムルールの現況
Findyさんの「フロントエンド開発はどこまで速くなるのか？〜Oxcで考えるツールチェーン〜」の発表資料です！ https://findy.connpass.com/event/391160/
GitHub - Shakya47/pip-it-up: Pop any UI component into a floating Picture-in-Picture window. Zero config. Auto-sizing. Framework-agnostic core.
Status: Active Beta — The API is in active development and subject to change before v1.0. See the roadmap for upcoming features. The ultimate toolkit for the Document Picture-in-Picture API. Build highly interactive, tear-away windows for your web applications with native DOM moving, styling synchronization, and graceful fallbacks. pip-it-up is a framework-agnostic solution that makes it easy to o
v1.20.0 | React Aria
GitHub - theMackabu/ant: javascript for 🐜's, a tiny runtime with big ambitions
Release ES2026 · tc39/ecma262
Flow has been ported to Rust | Flow
Normative: Add `using` and `await using` Declarations, SuppressedError, DisposableStack, and AsyncDisposableStack by rbuckton · Pull Request #3000 · tc39/ecma262
News from WWDC26: WebKit in Safari 27 beta
GitHub - pionxzh/wakaru: 🔪📦 Javascript decompiler for modern frontend
