Ayc0

Blammo github.blog/changelog/20...

Some speed & memory improvements you'll see with TypeScript 7.1 Beta. We're hoping to land more before RC & stable.

TypeScript 7.1 Beta is now available! Now with a preview API, content mapper support, new features, and some great optimizations. Give it a try and give us some feedback!

Introducing tsrs: a Rust port of the TypeScript compiler 🦀 We are not forking TypeScript! ◆ In close collab with the TypeScript team ◆ Up to 8x faster than TS 7.0 & ~70% less memory ◆ Runs in WASM (works in your browser & workers) ◆ Soon part of Oxc npx tsrs blog.cloudflare.com/typescript-r...

Baseline update from this week's newsletter: With Firefox 154, the `text-box` CSS properties are newly available. And `checkVisibility()` is now widely available. 🎉

There's a really cool alignment feature in CSS Grid Lanes that makes items stretch along the stacking axis, filling any remaining empty space. It's great when you don't want the usual jagged edge at the end of your layout. Wrote about it here ➡️ patrickbrosset.com/articles/202...

TanStack Start 1.0 is officially stable! 🎉 A full-stack web framework for React and Solid, already used to build millions of apps, from Fortune 500 companies to your favorite tools and weekend projects. tanstack.com/blog/tanstac...

One minor feature of Preact 11 that we haven't talked about much is the strictly typed aria roles on HTML elements, where possible. In short, `<header role="form">` will now be a type error. Spent quite a bit of time going through the spec docs to build that out, doing our part to make the web more

A few weeks ago I gave a talk saying that "People with LLMs are a threat to communities", and some people found it too extreme. I guess my next edition of that talk will say "People with LLMs are destroying and have destroyed communities". I hope you SWC friends will find a way to recover.

Sans mot, l'idée associée meurt Les fascistes détruisent les livres, Trump a interdit 250 mots. Il nie les femmes, la science, le progrès. Oui je viens de passer 2 semaines fort US et je suis remontée.

The 9th entry of my "How The Heck?" series is out! 🔒 It's all about how locks work, from ancient Egyptians nailing the design to why the perfect lock doesn't exist. It was a fun rabbit hole to go down, and challenging to get the visuals right.

Turn your website’s loading process into music. Forbes sounds surprisingly good. You could loop it and work to it. A great example of a website where someone clearly thought through every detail. We need more of that in the LLM era. blog.alena.rocks/en/artifacts...

We’re rewriting the Angular compiler in Rust (partially)! Meet ngp (Angular Preprocessor): a hybrid compiler decoupling our transforms from TypeScript using Oxc, readying Angular for TypeScript 7 & native tooling. Read the deep dive: medium.com/@angularteam... 🛠️

Excited to announce that: **We now have a single combined docs site for all the Redux libraries!** so, all of our docs for Redux core + usage, Redux Toolkit, React Redux, and Reselect now live together in: redux.js.org hopefully this makes it easier to navigate our docs!

don't be nice.

React 19.3 is now available! This release makes View Transitions and Fragment Refs stable, and adds browser(), Trusted Types support, and Context in Server Components. react.dev/blog/2026/09...

🚨 React v19.3 is out! TLDR: - <ViewTransition> → stable - Fragment Refs → stable - use(browser()) to opt out of SSR - RSCs can render <Context>, no <Provider> wrapper needed - Trusted Types support, useful alongside CSP to prevent XSS 🔗 react.dev/blog/2026/09...

Oops, I accidentally added type checking for code blocks in regular markdown files in addition to MDX. Ah well…

The @react.dev compiler landed in Oxc (thanks @boshen.github.io) 🎉 It is 2x faster than the initial Rust port while being 2x smaller and comes with granular rule support for Oxlint, improved diagnostics messages, and an *optional* transform for @vite.dev (integration with the React plugin pending)

I really need to start doing fewer things at the same time. It’s not healthy, and I’m not really “faster” this way. Been working concurrently on 4 different PRs for days and it’s killing me 💀

ECMAScript excitement 😉 Congrats to my coworker @ashley-c.bsky.social at TechAtBloomberg on advancing Await Dictionary to Stage 3 at TC39 🎉 Promise.all returns positional results as an array. Promise.allKeyed allows named results inside an object 👍 github.com/tc39/proposa...

@mu.social does "mu" have a specific meaning? Like an acronym or a pun on "eusocial"?

📣 The moment is here. 📣 TypeScript 7 is officially released! 7️⃣ devblogs.microsoft.com/typescript/a...

Si votre projet de piste cyclable ne respecte jamais les mini recommandés par le #CEREMA, il y a un problème ! Mieux vaut une bonne mixité qu'une mauvaise séparation. Sinon vous risquez de faire un aménagement impraticable voire dangereux. Pensez au plan de circulation ! 🙏 @cerema.bsky.social

Threw together something I've wanted for awhile: mdx-tsc Typecheck your MDX files just like you do other TS. Validate in CI Plus: - Typed frontmatters. Errors on both defintions and usage - A VSCode extension that add intellisense, go to def, etc for frontmatters npmx.dev/package/mdx-...

Buying a new domain name with @marque.at is quite easy! The process takes just a few minutes, and they update your BlueSky handle for you That's quite neat 👌

The other day, I was talking to a colleague about how to generate an unique UUIID for a react component instance. I figured it could be a good idea for a blog post. So I decided to write one 😁 ayc0.github.io/posts/consta...

Le climatologue Christophe Cassou est harcelé depuis 48H suite à son passage sur BFM TV. Un extrait vidéo coupé sur X, qui oublie une partie importante du discours, et des milliers de personnes lui tombent dessus. Pire encore, le député RN Tanguy en a profité pour le comparer à un dictateur.

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⚡ Learn how the VS Code and TypeScript teams collaborated to bring TypeScript 7 to VS Code. The result: faster builds, faster iteration, and a better day-to-day development experience. Read more: code.visualstudio.com/blogs/2026/0...

Unplugin 3.3 adds first-class Rsbuild support 🎉 Plugin authors can expose `my-unplugin/rsbuild`, giving users cleaner Rsbuild config

It’s still the same: no semantic guarantee, only a performance improvement, your code should work exactly the same when useMemo is removed. If anything, offscreen rendering (<Activity>) will lead to more memos being thrown away.

Simple question : avez-vous entendu parler cette semaine de l’urgence de réduire notre consommation de viande ? De la nécessaire réduction du trafic aérien ou du nombre de voitures individuelles en France ? Non, pas vraiment. Mais... vous avez entendu parler de la clim. bonpote.com/canicule-leu...

🦀 Rspack 2.1 is here! ⚡️ 16% faster builds than 2.0 ⚛️ Rust React Compiler: 7–13× faster than Babel 🎨 Improved built-in CSS 📂 import.meta.glob 🔵 TypeScript 7 RC support 🧩 Source Phase Imports

TIL: mu.social shows when a post is edited, but bsky.app doesn't 🤔 (and also code formatting)

Introducing Sätteri — High-performance Markdown & MDX processing for the JavaScript ecosystem. satteri.bruits.org

Node.js 26.4.0 is out with a new `node:vfs` built-in module (behind `--experimental-vfs` flag). It also adds support for package maps, and many bug fixes, including a fix for a regression shipped with last week security release. Full changelog and download links at nodejs.org/en/blog/rele...

With style queries now in all browsers, here's my take on the best way to do dynamic color theming with modern CSS: - Custom properties - light-dark() - contrast-color() - Style queries - Relative color syntax (^Features available in all modern browsers) Read about it ⬇️⬇️ una.im/modern-css-t...

Want those Astro 7 speed-ups in your docs? Starlight v0.41 is out now

Astro 7 is here! A new Rust compiler, a new Rust Markdown/MDX processor, Vite 8 and more. Get ready for 60%+ faster builds. astro.build/blog/astro-7/

Rappel : le mot-clef "canicule" déclenche l'apparition d'un certain nombre de lieux plus agréables en ce moment. Bon courage tout le monde.