fabon

I wrote a blog article about another lightweight Temporal polyfill I made. Long live ECMAScript! dnevnik.fabon.info/posts/2026/0...

I've published `temporal-polyfill-lite` v1.0.0, the first stable release with few bug fixes and changes. The most important thing: the `global` entry point no longer overwrites existing Temporal implementation by default. github.com/fabon-f/temp...

Being a big fan of the CSS Typed OM, I’ve wanted a proper polyfill for it for years. Just before my summer vacation back in July, with the help of Gemini/Antigravity, I finally built one: css-typed-om. → brm.us/css-typed-om...

Calendars in ECMAScript docswell.com/s/fabon/Z4NW... I uploaded slides I presented at a collaborative event of TC39 and JSConf.jp (the talk was in Japanese, but the slides are in English)

It feels very strange for me that I can hear TC39 meeting news during the day in Japan time

I am going on a trip to Uzbekistan with my parents from the 17th to the 21nd. I worry a bit about a language barrier. I know English and Russian pretty well, so interpersonal communication should be fine, but notices and signboards may be written only in Uzbek, which I don't understand at all.

I've published a new blog post about `gregory` and `iso8601` calendars in ECMAScript (a translation of an article I wrote in Japanese 2 months ago). dnevnik.fabon.info/posts/2026/0...

github.com/WebKit/WebKi... WebKit / Safari is closing the last gap between the spec and the implementation of Temporal. They were struggling with discrepancies in calendrical calculations of ICU across platforms and versions, but it seems they have resolved all issues. Very good news.

🔥 New blog post: In defense of polyfills A highly influential spec editor expressed the opinion that polyfilling is harmful. I beg to differ. lea.verou.me/blog/2026/po...

I wrote an article about difference between `iso8601` and `gregory` calendars in ECMAScript (in Japanese). I'm planning to translate it into English someday.

Excited to share Nav262, our experimental IDE for navigating ECMA-262 algorithms, implemented by @albertotontoni.bsky.social at the University of Bergen. Repo: github.com/bldl/nav262

How to use markdown-exit (or another Markdown renderer) in Eleventy dnevnik.fabon.info/posts/2026/0... I wrote a new article about Eleventy and markdown-exit. Freedom and flexibility is power, long live Eleventy!

Migrating `Date`, moment.js, day.js, or Luxon to Temporal in chaotic codebase isn't straightforward. It's like a migration of terrible JavaScript code to TypeScript.

temporal-polyfill 🕒 1.0 is out! Smaller and with a tree-shakeable API that can be codemodded away. Great for component lib authors: tiny footprint now, zero footprint later, and shared internals with the host app's polyfill (if they choose to install it).

Finally wrote my blog post about Diplomat I should have written this ages ago, but better late than never manishearth.github.io/blog/2026/06...

I'm very happy to know that JSPI on wasm will be shipped in all major browsers within a few months. Asyncify was definitely a great workaround but not an ideal solution at all.

If you're a web developer and want to come to Japan, the CFP for #JSConf Japan 2026 is now open! Your travel and lodging expenses for the conference are covered, so it's a great chance to visit Japan while you're at it. jsconf.jp/2026/en

Changing How We Develop Ladybird - Ladybird ladybird.org/posts/changi... It's a very confusing statement. They mentioned AI, but if it the reason, the solution would be AI policy or something similar. Actually they states that "Whether code was typed by hand is beside the point."

www.youtube.com/@unicode/vid... Recently I knew that Unicode Consortium uploads many interesting videos. It is a goldmine for language geeks.

Lately I've found myself repeating the same explanations to different people about how Node.js and V8 build/test/stay in sync with each other. To reduce the parroting, here's a blog post about the workflows, challenges I see, and some hands-on tips joyeecheung.github.io/blog/2026/05...

Gecko: Intent to Prototype: EditContext

What I like the most about Vue and Nuxt is this document. nuxt.com/docs/4.x/gui...

github.com/fabon-f/temp... I've released temporal-polyfill-lite v0.3.5, including improvement of spec compliance and types.

ECMAScript excitement 😉 JSC just landed a long-planned rewrite of their ESM module loader that will fix multiple famous spec bugs including those holding back ES2022 Top-Level Await 🎉 JSC is the JS engine used in Safari and Bun. github.com/WebKit/WebKi...

github.com/unicode-org/... I'm looking forward to the upcoming release of ICU4X 2.2

I wrote docs about caveats and restrictions of the polyfill. Thanks to Gemini for polishing my clumsy English writings. github.com/fabon-f/temp...

I've published a patch release of temporal-polyfill-lite v0.3.3, including a bug fix related to extreme dates in `persian` calendar. Also an opt-in cache for system time zone ID is added. github.com/fabon-f/temp...

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...

Blink: Intent to Ship: CSS ruby-overhang property

@bkardell.com and @meyerweb.com chat with Igalia's @ptomato.name, @nicr.dev and Bloomberg's @jason-williams.co.uk about the JavaScript Temporal API www.igalia.com/chats/tempor...

Temporal is finally here, "8 yrs, 11 mos" in the making! Congrats @ptomato.name and and the champions! Humbled to be invited to the @tc39.es meeting where it moved to Stage 4. During my work on temporal-polyfill, I collaborated with the champions to improve datetime arithmetics and duration rounding

npmx.dev/package/temp... I published temporal-polyfill-lite v0.3.2 with few bug fixes and behavior changes.