#javascript

Cloudflare、TypeScriptをRustに移植した「tsrs」を発表。TypeScript 7より最大で70％少ないメモリで8倍速。今後、LSPなどTypeScriptの全機能をサポート予定

Cloudflareは、TypeScriptをRustに移植した「tsrs」を発表しました。 下記は、Cloudflareに買収されたVoidZeroによるtsrsに関するポストです。VoidZeroもこのtsrsの開発に関わっています。 ...

Publickey · JA

JavaScriptランタイムの「Bun」がPrettier互換で300倍以上高速なフォーマッタに。Prettier設定ファイルもそのまま利用可能

Anthropicが開発しているJavaScriptランタイムの「Bun」の新機能として、Prettier互換のフォーマッタ搭載が発表されました。 2026年10月22日付けでリリースされたBun v1.4.4に搭載されたPrettier互...

Publickey · JA

Rebuilding the original GTA engine in JavaScript

#​808 — October 27, 2026 Read on the Web JavaScript Weekly TanStack AI 1.0: The Vendor-Neutral AI Toolkit Goes Stable — TanStack's framework-agnostic AI toolkit reaches 1.0, with stable APIs for chat, tools and media, plus 23 provider adapters. A new agent harness supports long-running sessions, but its APIs remain experimental. Tuzlak, Herrington, et al. (TanStack) Would You Let Your AI Agent Grade Its Own Homework? — Agents write code faster than ever. They even review their own work. But who’s reviewing them? Dropbox, Notion & ElevenLabs don’t take the risk. With Meticulous, every change is

JavaScript Weekly · EN

CSS vs. JavaScript

There are a bunch of JavaScript animation libraries out there, and you might have wondered whether there’s a performance cost compared to traditional CSS transitions and keyframe animations. In this blog post, we’ll compare the same animation across several different strategies and see the differences firsthand. There’s some interesting nuance here!

Josh W. Comeau · EN

Creating Web Widgets Using the Document Picture-in-Picture API

The general idea is that we create a Document Picture-in-Picture window (DPIP window), and then we put HTML, CSS, and JavaScript into it. Creating Web Widgets Using the Document Picture-in-Picture API originally handwritten and published with love on CSS-Tricks . You should really get the newsletter as well.

CSS-Tricks · EN

Virtual Art Museum built with Three js

My wife wanted a website for her artworks. While building the website, I suddenly had this urge to try building a virtual art museum to give her motivation. It turned out not bad. Put the rain mode on if you like cats btw. I'm still trying to optimize the performance as I'm having random fps-drops on Android devices. Let me know if you notice any bugs as this project is still in early build. It works best on PCs although tablets and smart phones are also good to go. I'm open to ideas to make it more beautiful. Comments

Lobsters · EN

How We Took Over ChatGPT Accounts

How We Took Over ChatGPT Accounts Parameter Labs describe an exploit they found against ChatGPT's implementation of the artifacts pattern (OpenAI used to call this "Canvas" but it looks like the latest revision is called HTML previews ), where interactive custom HTML apps are displayed in a sandboxed iframe. It's important that HTML in these stays tightly sandboxed to avoid untrusted code interacting with OpenAI APIs and accessing private data. Parameter found quite a complex attack chain. OpenAI use the MathLive JavaScript library as part of their graph support, and that library includes its

Simon Willison · EN