Author | Lightnews

Reposted by Nicolas Dubien

Brecht De Ruyte @utilitybend.com · 6d

@nico.dev learning us how to build K.I.T.T. with Javascript.

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Reposted by Nicolas Dubien

Rob Palmer @robpalmer.bsky.social · 8d

ECMAScript excitement 😉

Congrats to proposal champion Dan Minor @mozilla.org on shipping the TC39 Stage 3 Upsert proposal in Firefox 144 🎉

let map = new Map();
map.getOrInsert(key, defaultVal);

It lets you set a default value on a map key without overwriting an existing value 👍

// Currently
let prefs = getUserPrefsMap();
if (!prefs.has("useDarkmode")) {
prefs.set("useDarkmode", true); // default to true
}

// Using getOrInsert
let prefs = getUserPrefsMap();
prefs.getOrInsert("useDarkmode", true); // default to true

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Rob Palmer @robpalmer.bsky.social · 8d

ECMAScript excitement 😉

Congrats to Evan Wallace on shipping the TC39 Stage 2.7 Import Bytes proposal in ESBuild 0.25.11 🎉

It lets you import raw bytes as a readonly Uint8Array 👍

import buf from "./a.png" with { type: "bytes" }

Also available in Deno, Bun, & webpack.

Steven ⬢ @styfle.dev · 8d

esbuild implemented import bytes proposal 🎉

github.com/evanw/esbuil...

Release v0.25.11 · evanw/esbuild

Add support for with { type: 'bytes' } imports (#4292) The import bytes proposal has reached stage 2.7 in the TC39 process, which means that although it isn't quite recommended for implementation, ...

github.com

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Rob Palmer @robpalmer.bsky.social · 11d

As for the launch of Vite+, I'm glad we now have the demo and the website.

Probably it's best to wait for the blog post (promised for Monday) to really understand it and continue the conversation.

viteplus.dev

A slide titled: Vite+

And many CLI commands:

vite dev
vite build
vite lint
vite fmt
vite test
vite lib
vite new
vite run
vite install
vite ui

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Tony Alicea @tonyalicea.dev · 14d

Huge positive news for the React community.

React and React Native are moving out of Meta and into Linux Foundation.

engineering.fb.com/2025/10/07/o...

Introducing the React Foundation: The New Home for React & React Native

Meta open-sourced React over a decade ago to help developers build better user experiences. Since then, React has grown into one of the world’s most popular open source projects, powering over 50 m…

engineering.fb.com

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dan @danabra.mov · 26d

i wrote about atproto and why it matters

Open Social — overreacted

The protocol is the API.

overreacted.io

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Nicolas Dubien @nicolas.dubien.me · 26d

Better suited for the need 😅

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Nicolas Dubien @nicolas.dubien.me · 26d

Awesome 😍 I'll definitely give it a try for the CI of @fast-check.dev

James @43081j.com · 26d

we now have an @e18e.dev github action which can diff your dependencies in PRs

things like:
- change in trust level (loss of trusted publisher)
- adding >threshold dependencies
- adding >threshold install size
- bundle size difference (vs main)
- duplicate deps

early days so please give feedback!

GitHub - e18e/action-dependency-diff: A GitHub action to report dependency changes and potential problems

A GitHub action to report dependency changes and potential problems - e18e/action-dependency-diff

github.com

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Matthew Miller @iamkale.millerti.me · 29d

This is great news! GitHub will require use of passkeys for 2FA when publishing to NPM. What a huge step up in security compared to other phishable 2FA methods that were historically supported 🎉

github.blog/security/sup...

Our plan for a more secure npm supply chain

GitHub is strengthening npm's security with stricter authentication, granular tokens, and enhanced trusted publishing.

github.blog

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VoidZero @voidzero.dev · Sep 22

Rolldown v1.0.0-beta.39 has been released!

⚡ macOS Performance Boost: 10%-30% faster bundling, up to 45% in extreme cases.

🎯 Cross-Chunk Optimization: Support for __NO_SIDE_EFFECTS__ annotation, as well as
better tree-shaking across module boundaries and more efficient DCE

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James @43081j.com · Sep 21

eslint-plugin-depend released! this ESLint plugin helps you find dependencies the @e18e.dev community has recommended replacing

thanks to @bluwy.me for adding eslint/json support too 🙏

Release 1.3.0 · es-tooling/eslint-plugin-depend

What's Changed chore: bump dependencies by @43081j in #51 Maintenance, Use empathic by @beeequeue in #52 feat: support @eslint/json by @bluwy in #53 chore: enable trusted publishes by @43081j in #...

github.com

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Nicolas Dubien @nicolas.dubien.me · Sep 20

Clearly feel free

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Reposted by Nicolas Dubien

Rob Palmer @robpalmer.bsky.social · Sep 20

ECMAScript excitement 😉

Next week's TC39 meeting has a packed agenda:

🔼 Amount
🔼 Array.prototype.pushAll
🔶 AsyncContext
🔶 Await Dictionary
🔼 Import Bytes
🔶 Intl Era Month Code
🔼 Iterator Chunking
🔶 new Global()
🔼 Non-extensible applies to private
🔼 Promise Adoption
🔼 Promise Predicate
🔶 Temporal

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ArkType @arktype.io · Sep 20

our two-step process for fast typescript types:

1️⃣ build a type-level benchmarking library
2️⃣ spend the prime of your life on cache optimizations

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Shell @risu.bsky.social · Sep 20

Hey #edusky: what have I said for years about not putting images of children on your websites or socials ?

This is why

www.theguardian.com/technology/2...

Parents outraged as Meta uses photos of schoolgirls in ads targeting man

Exclusive: Instagram pictures of girls as young as 13 were posted to promote Threads site ‘as bait’, campaigner says

www.theguardian.com

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Nicolas Dubien @nicolas.dubien.me · Sep 20

@ssalbdivad.dev haven't you planned the same for @arktype.io too?

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Andrew Jarrett @ahrjarrett.bsky.social · Sep 19

Writing tests is hard, and I'm lazy. I'd rather write a few invariants, and let fast-check fuzz test the rest.

That's why I built @traversable/valibot-test.

Here it is in action:

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François Best @francoisbest.com · Sep 19

TIL: the "sync" in @react.dev's useSyncExternalStore isn't for "synchronise", it's for "synchronous".

As: it's not for synchronising against an external store,

It's for synchronously (ie: disabling concurrent features) updating against a store's changes.

h/t @tkdodo.eu 🤯

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Dominik 🔮 @tkdodo.eu · Sep 20

I wanna write a blogpost about Suspense, Transitions and React Query but it would mostly be "here's how I understand it, here's what I think doesn't work and here's what we might have to change internally to make it work"

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nuqs @nuqs.dev · Sep 19

Why do nuqs URL updates occur client-side only by default?

Because you're guaranteed to run @react.dev on the client, but not all frameworks do SSR.

With `shallow: false`, you opt-out of this client-only behaviour, and cross the network boundary for search params you need during SSR.

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Nicolas Dubien @nicolas.dubien.me · Sep 19

Got exactly the same issues: one package at a time and rate limited 😅 Not the best UX/DX

Wojciech Maj @wojtekmaj.pl · Sep 19

I'm enabling OICD trusted publishing in all my npm packages. What a terrible DX 🫠 Not only I needed to click through the options manually in THIRTY NINE packages, but also got rate-limited and had to wait a full hour before I was able to continue 🤣 It's like they *didn't want* people to enable OICD!

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fast-check @fast-check.dev · Sep 18

✨ We’re thrilled to welcome our new Gold Sponsor: LambdaTest! 🎉
Your support helps us keep improving fast-check for the whole community 💛

More about them at www.lambdatest.com

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Ricky @ricky.fm · Sep 16

The thesis of this post is that React isn't innovating and other UI libraries are. But the real issue is that React's innovations are overshadowed by it's own success.

www.lorenstew.art/blog/react-w...

React Won by Default – And It's Killing Frontend Innovation | Loren Stewart

Exploring how React's dominance by default stifles frontend innovation, and why deliberate framework choices lead to better tools for performance, developer experience, and ecosystem diversity.

www.lorenstew.art

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Feross @feross.bsky.social · Sep 16

🚨 Major active supply chain attack just hit npm.

Popular package @ctrl/tinycolor was trojanized — and it didn’t stop there. Over 40 packages were silently modified to steal secrets from dev machines & CI pipelines.

Our team at Socket caught it. Full report coming soon. Stay safe out there.

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Dominik 🔮 @tkdodo.eu · Sep 16

🚊 On my way to Prague for @react-prague.bsky.social. I will be talking about how we use knip @sentry.io to remove unused code 🙌

Luggage in a subway station, waiting for the train

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