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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)

docswell.com

Calendars in ECMAScript | ドクセル

https://nodejs.connpass.com/event/405664/ の発表スライド

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fabon @fabon-dev.bsky.social · 30/09/2026

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

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fabon @fabon-dev.bsky.social · 15/09/2026

Sad news: apparently Safari 27 doesn't ship Temporal API.

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fabon @fabon-dev.bsky.social · 15/09/2026

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.

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fabon @fabon-dev.bsky.social · 13/09/2026

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...

dnevnik.fabon.info

The difference between `gregory` and `iso8601` calendars in ECMAScript

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fabon @fabon-dev.bsky.social · 01/08/2026

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.

github.com

[JSC][Temporal][Intl.Era] Implement intl-era-monthcode by hyjorc1 · Pull Request #69818 · WebKit/WebKit

e58354e [JSC][Temporal][Intl.Era] Implement intl-era-monthcode https://bugs.webkit.org/show_bug.cgi?id=319855 rdar://182753821 Reviewed by NOBODY (OOPS!). Implement the Stage 4 proposal-intl-era-...

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fabon @fabon-dev.bsky.social · 09/07/2026

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

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fabon @fabon-dev.bsky.social · 07/07/2026

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!

dnevnik.fabon.info

How to use markdown-exit (or another Markdown renderer) in Eleventy

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fabon @fabon-dev.bsky.social · 03/07/2026

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.

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Reposted by fabon

Adam Shaw @arshaw.dev · 19/06/2026

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).

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fabon @fabon-dev.bsky.social · 13/06/2026

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.

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Reposted by fabon

Sacha Greif @sachagreif.com · 08/06/2026

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

jsconf.jp

JSConf JP 2026

jsconf.jp is a JavaScript festival in Japan powered by Japan Node.js Association. This is the seventh time event of jsconf in Japan. We would love to become a bridge between Japanese Web Developers an...

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fabon @fabon-dev.bsky.social · 05/06/2026

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."

ladybird.org

Changing How We Develop Ladybird - Ladybird

Ladybird is changing how code enters the project as we prepare to ship a browser to real users.

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Reposted by fabon

Joyee Cheung @joyeecheung.bsky.social · 18/05/2026

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...

joyeecheung.github.io

How Node.js and V8 keep each other working - workflows, challenges and tips

Recently I’ve found myself repeating the same explanations to different people about how to test a V8 patch in Node.js, how to patch the Node.js fork run in V8’s integration CI, or how to get these pa

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fabon @fabon-dev.bsky.social · 06/05/2026

I ran Temporal tests in test262 against Node.js v26, and Node.js fails in 1.3 k files (6.8 k files in total) because behavior of non-ISO calendars is not spec-compliant.

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fabon @fabon-dev.bsky.social · 04/05/2026

Recently I knew Takumi, an alternative rendering engine to Satori. It seems that Takumi is generally better at multilingual support than Satori. Takumi can render complex scripts like Thai and Arabic properly, which Satori renders incorrectly or even can't render.

While Satori doesn't support font format of Noto Sans Arabic, Takumi renders Arabic correctly as well as browsers.

While Satori can't render Thai script correctly, Takumi renders it correctly as well as browsers.

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fabon @fabon-dev.bsky.social · 29/04/2026

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

dnevnik.fabon.info

I made another Temporal polyfill from scratch

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Reposted by fabon

Rob Palmer @robpalmer.bsky.social · 15/04/2026

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

[JSC] Rewrite module loader by heimskr · Pull Request #57827 · WebKit/WebKit

4a63810 [JSC] Rewrite module loader https://bugs.webkit.org/show_bug.cgi?id=242740 rdar://97370038 Reviewed by Yusuke Suzuki and Sosuke Suzuki. The current module loader has long-standing bugs. T...

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fabon @fabon-dev.bsky.social · 04/04/2026

It has been a year since Anthropic CEO stated AI will write 100% of code in a year, and now I write 100% of code (note: I'm not AI). Tech geeks in the midst of AI frenzy would never think such a programmer still exists in the world though.

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fabon @fabon-dev.bsky.social · 27/03/2026

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

github.com

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fabon @fabon-dev.bsky.social · 26/03/2026

Reading TG2 meeting notes are my monthly delight, but honestly I find it difficult to understand discussions on areas except dates, times, and calendars, since I've been focusing on Temporal exclusively for a long time. Maybe it's time for me to learn other things, especially numerics and amounts.

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fabon @fabon-dev.bsky.social · 21/03/2026

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...

github.com

Release v0.3.3 · fabon-f/temporal-polyfill-lite

0.3.3 (2026-03-21) Added Introduce opt-in cache for system time zone ID (#22) Fixed Fix bugs related to extreme dates in persian calendar (#23)

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Reposted by fabon

London Web Standards @londonwebstandards.org · 18/03/2026

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...

A banner that reads: Temporal: It's about time!, Jason Williams, 2026 State of the Browser and it features a colourful geometric graphic in the background.

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fabon @fabon-dev.bsky.social · 16/03/2026

Yesterday I gave a talk about Temporal and ECMAScript in a small dev meetup called #temporal_study in Tokyo. In summary, I looked back the history of date time processing in JavaScript and analyze what Temporal brings to the web and other areas (especially i18n).

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Reposted by fabon

Igalia @igalia.com · 13/03/2026

@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...

A title card with a photo of a clock in the lower right corner and sound waves illustrated as coming from it, the words repeat what is in the skeet

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Reposted by fabon

Adam Shaw @arshaw.dev · 11/03/2026

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

Slide with statistics about total duration of Temporal spec project

Picture of some Temporal champions and a special guests (me!)

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fabon @fabon-dev.bsky.social · 11/03/2026

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

npmx.dev

npmx

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