petamoriken / 森建 (@moriken.dev)

It's so hard to implement CSS Values and Units...🥹
github.com/denoland/den...

08.03.2026 15:36 👍 0 🔁 0 💬 0 📌 0

Web Haptics API · Issue #262 · WICG/proposals Introduction Modern operating systems have embraced haptics as a core part of user experience — providing subtle, low-latency tactile cues that reinforce visual and auditory feedback. These signals...

👀 Web Haptics API · Issue #262 · WICG/proposals github.com/WICG/proposa...

04.03.2026 08:02 👍 0 🔁 0 💬 0 📌 0

I've learned that implementing CSS functions is more difficult than I anticipated...

CSS.supports("width", "calc(1deg * 1px * 1% * 1s / 1deg / 1% / 1s)");
// => true

01.03.2026 17:32 👍 0 🔁 0 💬 0 📌 0

GitHub - webcomponents/custom-elements-manifest: A file format for describing custom elements A file format for describing custom elements. Contribute to webcomponents/custom-elements-manifest development by creating an account on GitHub.

👀
webcomponents/custom-elements-manifest: A file format for describing custom elements github.com/webcomponent...

27.02.2026 04:28 👍 0 🔁 0 💬 0 📌 0

2026-01 の TC39 meeting - moriken's project まとめ Agenda: https://github.com/tc39/agendas/blob/main/2026/01.md 速報: https://x.com/robpalmer2/status/2014298317040058745 Note: https://github.com/tc39/notes/pull/389 決まったこと Web compatibility issues /

2026-01 の TC39 meeting - moriken's project scrapbox.io/petamoriken/...

20.02.2026 05:25 👍 0 🔁 0 💬 0 📌 0

Update on TC39 Stage 3 Import Defer:

The third patch by Caio has been merged into V8 🎉

It provides dynamic import.defer() support. All still behind a flag.

Next up: Chromium integration

chromium-review.googlesource.com/c/v8/v8/+/74...

19.02.2026 16:10 👍 20 🔁 2 💬 0 📌 0

好きなJSエンジン発表ドラゴン / 重音テト YouTube video by petamoriken

好きなJSエンジン発表ドラゴン #好きな惣菜発表ドラゴン
youtu.be/7OLD0fweQpk

26.12.2025 16:39 👍 1 🔁 1 💬 0 📌 0

好きなTC39 Proposals発表ドラゴン JavaScript大好き

YouTube

14.04.2024 18:21 👍 0 🔁 1 💬 0 📌 0

It's going to be discussed at the next TC39 meeting ☺️

17.02.2026 10:48 👍 0 🔁 0 💬 0 📌 0

module: add clearCache for CJS and ESM by anonrig · Pull Request #61767 · nodejs/node Introduce Module.clearCache() to invalidate CommonJS and ESM module caches with optional resolution context, enabling HMR-like reloads. Document the API and add tests/fixtures to cover cache invali...

I hope Node.js (unlike Bun) won't violate the ECMAScript spec 🥹
github.com/nodejs/node/...

15.02.2026 10:55 👍 1 🔁 0 💬 1 📌 0

Blink: Intent to Ship: Web Printing API Blink: Intent to Ship: Web Printing API

Blink: Intent to Ship: Web Printing API

11.02.2026 21:26 👍 6 🔁 1 💬 0 📌 0

Made a few updates to the post - specifically:

- es2025 target
- new library additions/updates
- deprecation of node10

bsky.app/profile/type...

11.02.2026 22:01 👍 18 🔁 3 💬 1 📌 0

text-scale によるユーザ指定倍率での文字拡大 | blog.jxck.io 小さい文字が見づらい場合、ユーザは OS の文字サイズを大きくすることで、視認性を調整することができる。こうした機能は大抵の OS が備えており、システムフォントのサイズなどに反映される。しかし、その指定がそのまま Web コンテンツにも反映されるかというと、必ずしもそうで...

text-scale によるユーザ指定倍率での文字拡大 | blog.jxck.io blog.jxck.io/entries/2026...

11.02.2026 15:15 👍 1 🔁 0 💬 0 📌 0

Introduce ES2025 target & Add missing ScriptTargetFeatures by petamoriken · Pull Request #63046 · microsoft/TypeScript Fixes #61735 This PR includes the addition of 2 type files: es2025.regexp.d.ts es2025.intl.d.ts Related issues and (stalled) PRs ES2025 RegExp.escape (es2025.regexp.d.ts) Closes #61321 Closes #62...

TypeScript excitement 😉

Congrats to @moriken.dev on landing support for the ES2025 target in upstream TypeScript 🎉

Heading for TS 6.0 Beta next week 👍

github.com/microsoft/Ty...

07.02.2026 01:53 👍 23 🔁 4 💬 0 📌 0

Introduce ES2025 target & Add missing ScriptTargetFeatures by petamoriken · Pull Request #63046 · microsoft/TypeScript Fixes #61735 This PR includes the addition of 2 type files: es2025.regexp.d.ts es2025.intl.d.ts Related issues and (stalled) PRs ES2025 RegExp.escape (es2025.regexp.d.ts) Closes #61321 Closes #62...

It's merged! Thank you very much!
github.com/microsoft/Ty...

06.02.2026 19:17 👍 5 🔁 0 💬 0 📌 0

GitHub - tc39/proposals: Tracking ECMAScript Proposals Tracking ECMAScript Proposals. Contribute to tc39/proposals development by creating an account on GitHub.

It is very helpful to have the links to the meeting minutes included in each proposal table 😆
github.com/tc39/proposals

06.02.2026 02:48 👍 0 🔁 0 💬 0 📌 0

Global Privacy Control という法的効力を持つヘッダ | blog.jxck.io GPC (Global Privacy Control) の策定と実装が進んでいる。このヘッダは、サービス、ユーザ、ブラウザ、全てにとって「無視することができない特別なヘッダ」となりつつある。たかだか 1 という値を送るだけのヘッダに、何の意味があるのか?失敗して歴史に消え...

👀
blog.jxck.io/entries/2026...

06.02.2026 01:06 👍 0 🔁 0 💬 0 📌 0

TypeScript 6.0 Iteration Plan · Issue #63085 · microsoft/TypeScript Date Event 2026-02-06 Create 6.0 Beta (6.0.0) Build for Testing 2026-02-10 TypeScript 6.0 Beta Release 2026-02-21 Create 6.0 RC (6.0.1) Build for Testing 2026-02-24 TypeScript 6.0 RC Release 2026-0...

github.com/microsoft/Ty...

04.02.2026 13:24 👍 1 🔁 0 💬 0 📌 0

Default `target` to "current year", deprecate ES5 by jakebailey · Pull Request #63067 · microsoft/TypeScript target now defaults to ScriptTarget.CurrentYear, which is an alias to the most recent stable ES version, currently ES2024. target=ES5 is now deprecated. #63066 got most test ready, but a few unit t...

A half year has passed since ES2025 was released. I hope the latest version of TypeScript moves on from ES2024 soon.
github.com/microsoft/Ty...

30.01.2026 20:51 👍 0 🔁 0 💬 0 📌 0

CSS Pseudo-Elements Module Level 4

👀 CSSPseudoElement
drafts.csswg.org/css-pseudo/#...

29.01.2026 12:21 👍 0 🔁 0 💬 0 📌 0

Introduce ES2025 target & Add missing ScriptTargetFeatures by petamoriken · Pull Request #63046 · microsoft/TypeScript Fixes #61735 Related issues and PRs ES2025 RegExp.escape Closes #61321 Closes #62138 ES2025 Intl.DurationFormat Closes #60608 Closes #60646

No one else handles the annual ECMAScript type updates, so I submitted a PR for ES2025 out of goodwill, as I did for ES2024.

Instead of thanks, I received criticism for my approach. I’m finding it difficult to process these complicated feelings... 😢
github.com/microsoft/Ty...

29.01.2026 10:40 👍 1 🔁 0 💬 1 📌 0

Gecko: Intent to prototype: JPEG XL decoding in Rust Gecko: Intent to prototype: JPEG XL decoding in Rust

Gecko: Intent to prototype: JPEG XL decoding in Rust

26.01.2026 13:24 👍 20 🔁 6 💬 0 📌 2

Blink: Intent to Prototype: CSS Text Level 3 text-transform: full-size-kana Blink: Intent to Prototype: CSS Text Level 3 text-transform: full-size-kana

Blink: Intent to Prototype: CSS Text Level 3 text-transform: full-size-kana

29.01.2026 00:48 👍 3 🔁 3 💬 0 📌 0

OkLCH relative chroma Proposal and PostCSS plugin for an upgraded oklch() notation featuring relative chroma.

👀 OkLCH relative chroma
dokozero.design/en/projects/...

27.01.2026 10:03 👍 0 🔁 0 💬 0 📌 0

Google Research による JPEG XL の Rust 実装が進んだのかな。

26.01.2026 13:29 👍 1 🔁 0 💬 0 📌 0