Matt Radbourne
@radbourne.net
JavaScript and TypeScript geek. Automating the Bloomberg Terminal. BDD and UXD advocate. Views are my own.
I've been working for a long time alongside different folks to spread the word about web standards, how JavaScript is standardized and help improve how responsive we are to the needs of developers. For more @tc39.es lore, read my first post in "What even is Ecma?" www.ryzokuken.dev/blog/about-e...
What even is Ecma? (Part 1)
Ujjwal Sharma — Developer Advocate at Igalia, TC39 Co-chair, ECMA-402 Co-editor.
ryzokuken.dev
Temporal is now Stage 4 at TC39 🎂🎂🎂 Thanks to all the other champions of JavaScript's new date-time API. It has been a wild ride over many years! I wrote a blog post explaining how we got here 📜 bloomberg.github.io/js-blog/post...
![Code example showing the usage of Temporal.ZoneddateTime
```js
// London DST starts: 2026-03-29 01:00 -> 02:00
const zdt = Temporal.ZonedDateTime.from(
"2026-03-29T00:30:00+00:00[Europe/London]",
);
console.log(zdt.toString());
// → "2026-03-29T00:30:00+00:00[Europe/London]"
const plus1h = zdt.add({ hours: 1 });
console.log(plus1h.toString());
// "2026-03-29T02:30:00+01:00[Europe/London]" (01:30 doesn't exist)
```](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:r5emt2gkdrkb2yc6y7xndxpe/bafkreicgonzisednk3qegophndqf6fnslwtvbd7gshsgtv6fpi3arh2dsi)
Today the Temporal proposal has entered the stable stream shipping Chrome 144. This opens the gates for attaining Stage 4 at TC39. That means tonight I will be purchasing a supply of champagne in preparation. It’s been a long journey and so very worthwhile!
Immersive Web SDK looks very exciting! Getting motion sickness never used to be this fun. Pass the ginger pills youtu.be/d1PwLkvgP7A
Your First Steps with Immersive Web SDK
YouTube video by Meta Developers
youtu.be
Node excitement 😉 Congrats to @pipobscure.com on landing and now shipping a more robust fs.watch in Node v24.3 🎉 Previously file system changes could be missed when fs.watch is used as async iterator. nodejs.org/en/blog/rele... github.com/nodejs/node/...
Node.js — Node v24.3.0 (Current)
Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
nodejs.org
As an antidote to the online AI opinion firehose, I attended an interesting interview with Demis Hassabis at SXSW London this week - www.theguardian.com/technology/2...
Today we're announcing previews of the native port of TypeScript! These nightly previews will be available on npm and the VS Code marketplace! npm install -D @typescript/native-preview npx tsgo --version Read up more on our blog!
Announcing TypeScript Native Previews - TypeScript
Previews of the native TypeScript port are now available on npm and for VS Code through the Visual Studio Marketplace!
devblogs.microsoft.com
A great milestone! 👏 Congratulations to all involved
Igalia@igalia.com · last yr.🎉 Exciting news! The Unicode MessageFormat 2.0 (MF2) specification is here! 🚀 This marks a huge milestone in our multi-year effort around improving how we localize software and eventually, the web. Check out the announcement: 🔗 blog.unicode.org/2025/03/unic...
Today @jasew.bsky.social and I tell the story of how our team embedded web technology to give us the best combination of real-time data and rich UI for the #BloombergTerminal. It is an honour to speak at @perfnow.bsky.social. The #PerfNow team have been so welcoming. perfnow.nl/speakers#paulw
What a great first day at #NodeConfEU. It’s been full of great content on things like the challenges of cross-compatibility in JS runtimes, package manager design considerations and a multithreading deep dive 👏
