#ecmascript
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robpalmer.bsky.social
ECMAScript excitement 😉

Node.js 27 Alpha introduces...

🔶 Math.sumPrecise
🔶 Intl.Locale#variants
🔶 Iterator methods: join & includes
🔶 Iterator.zipKeyed & zip
🧪 import bytes
🧪 import defer
nodejs.org Node.js @nodejs.org · 4d
The new Node.js 27 Alpha release upgrades V8 to version 15.6, from the 14.6 used by Node.js 26. Let's take a look at what this means for developers and what the new version of V8 brings

- New JS features and language changes
- Performance improvements
..and more!
nodejs.org/en/blog/anno...
Node.js — Notable V8 changes from Node.js 26 to 27 (Alpha)
Node.js® is a free, open-source, cross-platform JavaScript runtime environment that lets developers create servers, web apps, command line tools and scripts.
nodejs.org
November 6, 2026 at 5:30 PM
wil.to
And, of course, eight new Weirding Modules digging into the stranger aspects of the language — from an instance of `Error` that that only lies, to “oney” and “zeroey” values, to a guided tour of a place best left shunned and uninhabited: Annex B, Additional ECMAScript Features for Web Browsers.
November 9, 2026 at 5:05 PM
throwable.bsky.social
📦 phasis/phasis v0.15.0

Pure PHP JavaScript engine. Lexes, parses, and executes ECMAScript without Node.js, FFI, or extensions.

🔗 https://github.com/inline0/phasis
November 8, 2026 at 9:59 AM
throwable.bsky.social
📦 phasis/phasis v0.14.3

Pure PHP JavaScript engine. Lexes, parses, and executes ECMAScript without Node.js, FFI, or extensions.

🔗 https://github.com/inline0/phasis
November 7, 2026 at 9:59 AM
throwable.bsky.social
📦 phasis/phasis v0.14.5

Pure PHP JavaScript engine. Lexes, parses, and executes ECMAScript without Node.js, FFI, or extensions.

🔗 https://github.com/inline0/phasis
November 7, 2026 at 10:59 AM
lostluck.dev
Wait... Like... The ecmascript standard?

Wasn't the spec published like 11 years ago (back when I did have to deal with JavaScript...)!?
November 3, 2026 at 7:20 PM
dxsrc.org
7 Useful JavaScript Features Added in ECMAScript 2026, by @jsdevspace@mastodon.social:

https://jsdev.space/ecmascript-2026-features/?ref=frontenddogma.com

#ecmascript #javascript #standards
7 ECMAScript 2026 Features That Make JavaScript Better
Explore seven practical ECMAScript 2026 features for Maps, async iterators, JSON, binary data, errors, precise sums, and cleaner JavaScript.
jsdev.space
November 3, 2026 at 3:30 PM
erikrobson.net
First and foremost, I'm not a programmer. 😏
I'm a game designer who happens to do a lot of programming.

I've worked with Lua, ECMAScript (ActionScript), BPs, and some VERY light C++. But the bulk of my experience is with C# - I was a Unity guy during the golden age (mid-2010's.)
November 5, 2026 at 9:58 PM
lewoudar.bsky.social
This week, we are going to discuss Pillow and OpenSSH vulnerabilities, Django, Flet 1.1 & chadcn/ui support, Polars 2.1, Jev, Pyxel Python game engine, Pyrefly, Fly.io skills & MCP, ECMAScript 2026, C++, and more! 🤓
#pythonprogramming #security #web
lewoudar.substack.com/p/whats-up-i...
What's up in the python and tech environment? - Issue 236
Welcome to issue #236 of What’s up in the Python and tech environment?
lewoudar.substack.com
November 9, 2026 at 1:44 PM
robpalmer.bsky.social
ECMAScript excitement 😉

The @TC39.es Stage 4 Temporal API will be enabled by default in Cloudflare Workers from 1st December 2026 🎉

h/t @wongmjane.com
Enable the Temporal API Default as of: 2026-12-01 Flag to enable: temporal Flag to disable: no_temporal Makes the Temporal API available in your Worker. Temporal is the modern JavaScript standard for working with dates and times, and replaces many of the uses of Date and of date libraries such as Moment.js, Luxon, or date-fns. With Temporal you can: • Convert between time zones, with daylight saving time handled for you. • Work with plain dates and times, such as a birthday or an opening hour, without a time zone getting in the way. • Add and subtract durations like "1 month and 3 days" and get calendar-correct results. • Compare and sort dates and times, and format them for any locale. Temporal objects are immutable, so a value never changes after you create it. const meeting = Temporal.ZonedDateTime.from( "2026-12-15T09:30[America/New_York]", ); meeting.withTimeZone("Europe/London").toString(); // "2026-12-15T14:30:00+00:00[Europe/London]" meeting.add({ months: 1 }).toPlainDate().toString(); // "2027-01-15" Temporal.Now returns the same time as Date.now(). For more information, refer to Performance and timers.
November 3, 2026 at 8:18 AM
functionalscript.bsky.social
Our website now has a preview (a card image). Let's see if it works in Bluesky: functionalscript.com
FunctionalScript
FunctionalScript is a safe, purely functional programming language and a strict subset of ECMAScript/JavaScript.
functionalscript.com
November 2, 2026 at 2:12 AM
moriken.dev
Fukuoka Web Frontend LT #1 に参加を申し込みました！ mentaico-js.connpass.com/event/410481... #fuk_webfe_lt
Fukuoka Web Frontend LT #1 (2026/11/25 19:00〜)
## イベント概要 * Webフロントエンドに関するLTをする福岡の勉強会です。 * LTは「Webフロントエンドに関する内容」であれば、OKです。 * Webフロントエンドの例：ECMAScriptやHTML/CSSの仕様の話、TypeScriptなどのWebフロントエンドと馴染みの深いプログラミング言語の話、ツールチェインの利用や開発の話 .. etc。厳密に定義をする気はないの...
mentaico-js.connpass.com
November 9, 2026 at 9:43 AM
robpalmer.bsky.social
ECMAScript excitement 😉

Simon Zünd shipped the @tc39.es TG4 Stage 3 “Scopes” proposal in Chrome 158 🎉

TC39-TG4 is a dedicated Task Group that works on Sourcemaps.

Scopes provide extra debug information in the Sourcemap to recover accurate call stacks and variables when debugging 👍
nicr.dev Nicolò Ribaudo @nicr.dev · 11d
Congrats to Simon Zünd at @developer.chrome.com for enabling the source maps Scopes proposal by default in Chrome 158!

It will greatly simplify debugging when working with transformed code. My two favorite features are re-constructing call stacks and variables as they were in the original code.
Chrome DevTools paused on a debugger statement, showing behavior with the scopes proposal of devtools paused inside inlined code. It shows the original TypeScript file, inlining.ts, with a `debugger;` statement in a clampPercentage function, the generated bundle.js with the corresponding `debugger;` in a processCustomerOrder, with other inlined code. For the generated code it has a description saying "In the bundled code multiple functions were inlined into one." At the bottom, the Call Stack panel lists four frames: clampPercentage, computeTierDiscount, calculateCartTotal and processCustomerOrder, all pointing to inlining.ts; with a description saying "Thanks to the Scopes proposal we can still see the full original stack trace, matching the code you wrote" Chrome DevTools paused on a debugger statement, showing behavior without the scopes proposal of devtools paused inside inlined code. It shows the same inlining.ts/bundle.js files from the previous image. However, the Call Stack panel lists only two frames: processCustomerOrder and window.runExample03, with a description saying “Without Scopes information, DevTools are only able to show the call stack as it is in the bundler output” Chrome DevTools paused on a debugger statement, showing behavior with the scopes proposal of devtools inspecting variables that no longer exist. It shows the original TypeScript file, order-pricing.ts, with a `debugger;` statement after the variables discountRate, discountedSubtotal, taxAmount, shippingFee and grandTotal, the generated bundle.js with the corresponding `debugger;` in a calculateInvoice function, where only two variables are left: d and g. For the generated code it has a description saying "In the bundler output, most of those variables are not only renamed but inlined and thus removed." At the bottom, the Console shows that it can evaluate discountedSubtotal and taxAmount, getting their value even if those variables don't actually exist anymore.
October 29, 2026 at 6:24 PM
frontsparrow.bsky.social
¿Sigues resolviendo a mano lo que JavaScript ya trae de serie?

Repaso las novedades de ECMAScript de 2022 a 2026, con ejemplos y atención a la compatibilidad.

tecnops.es/javascript-n...
JavaScript de 2022 a 2026: cinco años de evolución que han cambiado nuestra forma de programar - TecnoPS
Descubre las novedades de JavaScript de 2022 a 2026: métodos de arrays, promesas, iteradores, Set, Map y ECMAScript moderno con ejemplos.
tecnops.es
October 31, 2026 at 7:01 PM
opensource.google
Building interactive 3D, AR, and WebXR apps usually requires mastering low-level graphics APIs.

Three-Live brings a declarative HTML & JSON scene format + on-device Rust/Boa compiler for Three.js across web, Android & iOS:
goo.gle/three-live

#OpenSource #ThreeJS #WebXR
Title card for the Google Open Source blog post "Introducing Three-Live: AI-Generated Three.js to 3D, AR & WebXR in ms" by Jonathan Bingham (AI Foundations at Google). Subheadline: "An Apache 2.0 library and on-device Rust/Boa compiler turning procedural Three.js scripts into binary glTF 2.0 (GLB), Apple USDZ, and WebXR scenes." Key bullets highlight sandboxed execution with strict resource quotas via Web Workers and an embedded Rust + Boa ECMAScript engine, compiling procedural Three.js into binary GLB and USDZ byte buffers in memory in 2–5 milliseconds. Links: github.com/google/three-live and goo.gle/three-live. Infographic card titled "Universal Portable 3D Without Heavy Pipelines" detailing three core Three-Live capabilities: (1) Capability 01, Sandboxed Web Worker & Rust Boa Engine (Zero Network): safe execution of untrusted AI-generated scripts stripping fetch, WebSocket, and dynamic import while enforcing timeouts and geometry quotas; (2) Capability 02, On-Device glTF 2.0 & Apple USDZ Compiler (2–5 ms Compile): in-memory binary GLB and USDZ serialization of geometries, PBR materials, canvas textures, and keyframe animations; (3) Capability 03, Lightweight Web & Native Mobile SDKs (23–55 KB Gzip). Architecture card titled "Declarative HTML WebXR & Native Mobile Runtimes." Left box ("23–55 KB WebGL2 & WebXR"): Viewer (~23 KB gz), full scripting + AR (~45 KB gz), and xr-live (~55 KB gz) with 6DoF hand-tracking gestures and spatial DOM projection. Right box ("Filament & RealityKit SDKs"): Android Kotlin/JNI AAR (com.google.threelive:compiler) and 5-slice iOS/macOS Swift Package (ThreeLiveCompiler) powered by Rust + Boa. A terminal diagram lists the 6-step pipeline from procedural Three.js input script through Web Worker or Rust/Boa sandbox to in-memory GLB/USDZ assets rendered in WebGL2, WebXR, Google Filament, and Apple RealityKit. Action card for @opensource.google on Bluesky titled "Try Three-Live & XR-Live in Your Browser Today." Lists author Jonathan Bingham (AI Foundations at Google), GitHub repo github.com/google/three-live (v1.0.0, Apache 2.0), interactive browser playgrounds at google.github.io/three-live, and companion Android XR framework xrblocks.github.io. Includes quick-start install commands (npm install three-live xr-live and crates.io/crates/three-live-compiler) and shortlink https://goo.gle/three-live.
November 3, 2026 at 7:44 PM
marypcbuk.bsky.social
@rbyers.net and @foolip.org and @bkardell.com and @robpalmer.bsky.social will probably remember me asking about 'how many engines is enough for the standards' in various conversations where runtimes came up for my ECMAScript and Baseline features (which someone should commission me to keep writing)
October 27, 2026 at 7:32 PM
reverius42.bsky.social
Module JS (ECMAScript Module). It’s a good thing!
October 26, 2026 at 4:39 AM
vogonpoetry.live
Most programming languages don’t suck complete shit. ECMAScript/Typescript/JavaScript however does.
October 25, 2026 at 7:53 PM
throwable.bsky.social
📦 phasis/phasis v0.10.0

Pure PHP JavaScript engine. Lexes, parses, and executes ECMAScript without Node.js, FFI, or extensions.

🔗 https://github.com/inline0/phasis
October 25, 2026 at 11:59 AM
throwable.bsky.social
📦 phasis/phasis v0.9.0

Pure PHP JavaScript engine. Lexes, parses, and executes ECMAScript without Node.js, FFI, or extensions.

🔗 https://github.com/inline0/phasis
October 24, 2026 at 10:19 AM
fukuokaconnpassbot.bsky.social
Fukuoka Web Frontend LT #1

📅 2026年11月25日(水) 19:00〜
📍 サイボウズ 福岡オフィス

https://mentaico-js.connpass.com/event/410481/
Fukuoka Web Frontend LT #1
## イベント概要 * Webフロントエンドに関するLTをする福岡の勉強会です。 * LTは「Webフロントエンドに関する内容」であれば、OKです。 * Webフロントエンドの例：ECMAScriptやHTML/CSSの仕様の話、TypeScriptなどのWebフロントエンドと馴染みの深いプログラミング言語の話、ツールチェインの利用や開発の話 .. etc。厳密に定義をする気はないの...
mentaico-js.connpass.com
October 26, 2026 at 10:30 AM
naugtur.pl
IMHO react native is inferior to phonegap in concept.
Especially considering it uses an engine that doesn't implement full ECMAScript instead of hosting in a webview
October 23, 2026 at 2:53 PM
golangoss.bsky.social
goja (⭐️ 7158)

ECMAScript/JavaScript engine in pure Go

#go
October 23, 2026 at 3:34 PM
neuralstunner.bsky.social
It is astonishing to me that the JSON spec is strict in this way but ECMAScript allows (possibly even encourages) it.
October 22, 2026 at 10:25 AM