I've been experimenting with having `ts-blank-space` use the (unstable) TypeScript-go JS API. At first it was ~60% slower than using the TS 6 API, but with a bit of investigation, a bug fix, and a small refactor to use different API calls it is now ~24% faster! Draft PR: github.com/bloomberg/ts...

This is seriously cool stuff, no more JS to OOO stream, in chrome 150! (the script in there is the SW registration)

Bloomberg uses a lot of C++ & contributes to the standard as well as various industry conferences and libraries. I’m looking for an experienced engineer to join a distributed systems team in New York working on our core Deployment Infrastructure for the Bloomberg Terminal 🗽 🧵

This is a place where every day you wake up, you could experience everything from a basketball player crashing into our old mayor to a person who's celebrating a new business that's opening

"It’s fortunate that LLMs are not conscious," Ted Chiang writes, "or else the actions of the big AI firms would be even more scandalous than they already are." theatln.tc/D4SzWQfW

great post by the authors about how they code so good. I’m updating my local diff viewer skepsis (github.com/oxidecompute...) to use their new high performance component. completely smooth on a +90,000 -60,000 diff

This article explains why many Bloomberg engineers choose to stay with the company for a long time. leaddev.com/career-devel...

--dangerously-count-letters

PWA Plugin v2 will be a necessary "clean break": Vite 8 + Rolldown required. ⚡️ 🚀 Native "Dual Service Worker" support: we serve native ESM to modern browsers and automatically fallback to Classic for the rest. The best of both worlds with zero config! ✅🚀 @vite.dev #PWA

I just published a deep-dive into the 250-hour build behind syntaqlite, a SQLite formatter and LSP I built using AI agents. AI agents were the only reason built this after 8 years of wanting but there's a psychological toll to AI-assisted engineering. The post-mortem: lalitm.com/post/buildin...

Warning to open source maintainers: the Axios supply chain attack started with some very sophisticated social engineering targeted at one of their developers simonwillison.net/2026/Apr/3/s...

I spent 2 months learning about quantization and am extremely proud of the post I've written about it. I think these are some of the nicest visuals I've ever made, and I love how this compression technique invented in 1898 is being used on the bleeding edge in 2026. ngrok.com/blog/quantiz...

This must've been one of the most challenging things I've worked on in a while. Thanks Bloomberg for sponsoring my work on this, and everyone who helped shipping a fix in time!

The recording of @jason-williams.co.uk talk ‘Temporal: It’s about time!’ is now available to watch online! 2026.stateofthebrowser.com/speaker/jaso... And Temporal has reached Stage 4: www.igalia.com/2026/03/13/T...

What if you could collect Wikipedia articles and make them battle? Wikigacha, created by Japanese developer Haruki Sugiyama, turns every Wikipedia article into a collectible trading card.

ECMAScript excitement 😉 This week in NY @tc39.es advanced these proposals 🎉 4⃣ Intl Era/Month Code 4⃣ Temporal 3⃣ Import Text 2⃣.7⃣ Error Stack Accessor 2⃣.7⃣ Iterator Includes 2⃣ Intl Unit Protocol 2⃣ Thenable Curtailment 1⃣ Error Code Property 🗑️ Dynamic Import Host Adjustment

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...

Source maps are a vital part of modern web development, but the lack of a standard made it impossible for us to add new features or improve the debugging experience. This is the story of how we standardized source maps and how we continue to ship features through standards 📜 🧵

Some time ago, @jonkuperman.com & @tchetwin.bsky.social had a dream for the JS engineers at Bloomberg to be more public about the cool JS work we have going on. That dream has come true - now we have a blog platform 🎉 (You'll see more articles over the next few days) bloomberg.github.io/js-blog/

🆕 The URL Pattern API is Newly Available! Use it to match and extract parts of URLs, no need to reinvent routing logic. Supports literals, wildcards, named groups, and even regex constraints. Learn how it works 👇 developer.mozilla.org/en-US/docs/...

This is a welcome change. Puzzmo is my most-used Progressive Web App! www.puzzmo.com/user/fy/jpo34

ECMAScript excitement 😉 🚨🚨🚨 IT'S ABOUT TIME! 🚨🚨🚨 Congrats to @manishearth.bsky.social on shipping the Temporal API in Chrome 144 stable today 🎉 developer.chrome.com/blog/new-in-... Temporal is the replacement for the Date API.

I refuse to shut up about this: NYC started charging $9 to bring a car into our most transit-rich zone, the haters & trolls predicted doom, but traffic evaporated instantly and here’s Times Square tonite (even after the holiday tourists have left). For a better future, build transit & price driving!

Working in an enterprise setup with corporate proxies or custom CAs? Node.js has native support for that. No external dependency required, just configure and continue 👍 Details: https://nodejs.org/en/learn/http/enterprise-network-configuration

ECMAScript excitement 😉 TC39 has a *packed* agenda for next week & will consider advancing: 4️⃣ Intl.Locale info 4️⃣ Iterator Sequencing 4️⃣ JSON.parse source 3️⃣ Intl Era Month Code 3️⃣ Joint Iteration 2️⃣.7️⃣ Error.prototype.stack 2️⃣.7️⃣ export defer 2️⃣ Amount 2️⃣ await dictionary 2️⃣ Declarations in Conditionals 🧵

I havent read such a banger of an essay in a very long time. This is so well-written!

Two years ago I interviewed a 31-year-old NY state assemblymember about a 7-year-old girl killed by an SUV driver in his district. I hung up the phone, astonished that I'd talked to a legislator who so thoughtfully articulated what actually needs to change on our streets. He'll make a great mayor

The full episode is out! 📺 www.youtube.com/watch?v=JLdh... 🎙️ zencastr.com/z/KHLM-Zlu

The dream of every Muslim is simply to be treated the same as any other New Yorker. And yet, for too long, we have been told to ask for less than that, and endure hatred and bigotry in the shadows. No more.

Life Is More Than an Engineering Problem, an interview with Ted Chiang from earlier this year. “I don’t believe it’s meaningful to say that something is better art absent any context of how it was created. Art is all about context.” [lareviewofbooks.org]

Vitest 4 is out! - Browser Mode is Stable - Visual Regression Testing - Improved Debugging - Pool Stabilization - New APIs - Bug Fixes Stay updated with our blog post: vitest.dev/blog/vitest-4

Built-in HTTP proxies are now on v22 😇 (Going to update the version mentions in a WIP guide on using Node.js in enterprise network environments)

I did build SWTL in the meantime though, which (my blog is also built with SWTL: passle.dev) does exactly what OP describes and runs both on the server and in a service worker github.com/thepassle/swtl

In fact, I'd really urge someone to investigate this and pick it up, MAINLY because it *is* a really fun problem space to work on, where not much investigation/development by major (meta) frameworks is happening (as far as I'm aware!)

Lit is joining @openjsf.org! 🎉 Today at JSConf, The OpenJS Foundation announced Lit is officially joining as an Impact Project! We're beyond excited for this move and look forward to continuing our work to build the open web with OpenJS! Read more on our blog: lit.dev/blog/2025-10...

Some personal news: I'm starting a job tomorrow Bloomberg Engineering. It'll be exciting to work someplace where JavaScript/TypeScript are key to the business. And more importantly, I'll be joining a fantastic group of people.

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

I've joined @whiskey.fm as a permanent show host! I'll be bringing #CSS content and overall more dorky nerdery to the pod. Tune in if you're into (web tech news || whiskey || whatnot) nerdy.dev/www-ep208

Between the time we launched the original Learn CSS course on web.dev and today, container queries landed in browsers and became Baseline Widely available! It was high time for an update, and we were lucky enough to have the team at OddBird work with us. Enjoy 9 new modules! web.dev/blog/learn-c...

terrific post, to which i'll add a couple of related thoughts. first: a lot of developers, especially juniors, tend to assume that other people's code is better than theirs, and so using a dependency (rather than a snippet) makes their codebase better this is very much not the case

This is slick. “Liquid Glass in the Browser: Refraction with CSS and SVG” kube.io/blog/liquid-...

gradient.style has finally - come out of beta - offers multiple background editing - is open source 🎉 nerdy.dev/gradient.sty...

TypeScript excitement 😉 TS 6.0 is planning a bunch of breaking changes to tsconfig options to deprecate some and change the defaults for others. This will simplify configuration and ease the transition to the Go-based TS 7.0 👍 The latest pitch is to enable strict type-checking modes by default 🎉

Galavanting around NYC for a Zcavenger Hunt? Don't mind if we do!

MDN just got a glow-up! 🌟 We’ve completely rebuilt our front end, redesigned, reengineered, and ready to help you find what you need. ✨ New search ✨ Improved typography & code rendering ✨ Sleeker nav & icons Read more 👇 developer.mozilla.org/en-US/blog/...

This is one I've been thinking about for a long time, and I do hope you'll read it, and share it. The stakes have never been higher, but it'ss never been clearer: @zohrankmamdani.bsky.social is exactly what NYC's entrepreneurial community needs. www.anildash.com/2025/08/20/z...

walton goggins cobie smulders tyler childers

Announcing Oxlint Type-Aware Preview oxc.rs/blog/2025-08...

I spent hours and hours trawling through the sites of some of the world's best web developers, and despite the horrors I regularly experience in my daily work in Big JavaScript Territory, what I saw left me hopeful: infrequently.org/2025/07/links/