ECMAScript.News
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ECMAScript News – JavaScript and tools: 🦋 All links: here on Bluesky 🦣 Mastodon: https://mastodon.online/@ecmascript_news 📧 Weekly email with additional information: https://ECMAScript.News Written by @dr-axel.de and @johannesweber.bsky.social
1/ Sadly, we are closing down our newsletter and this account. The newsletter has been operating at a loss for too long: The number of advertisers and subscribers has been slowly but steadily decreasing over the last two years (vs. constant growth before that). ecmascript.news/archive/es-n...
Last issue of "ECMAScript News"
ecmascript.news
cjsawk: self-hosted compiler for code in the intersection of C, JavaScript and AWK github.com/cosinusoidal... #ECMAScript #JavaScript
tcc_simple/experiments/cjsawk at master · cosinusoidally/tcc_simple
Contribute to cosinusoidally/tcc_simple development by creating an account on GitHub.
github.com
Implementing Wordle in LibreOffice with JavaScript macros bojidar-bg.dev/blog/2025-11... #ECMAScript #JavaScript
Wordle in LibreOffice
I implemented Wordle in LibreOffice with JavaScript!
bojidar-bg.dev
tinyglobby: a success story in modernization and performance @superchupu.dev @e18e.dev e18e.dev/blog/tinyglo... #ECMAScript #JavaScript
tinyglobby: a success story in modernization and performance
The story of tinyglobby, one of the e18e community's most successful projects
e18e.dev
Another round of TEA protocol spam floods npm, but it’s not a worm @burckhap.bsky.social @socket.dev socket.dev/blog/tea-pro... #ECMAScript #JavaScript
Another Round of TEA Protocol Spam Floods npm, But It’s Not ...
Recent coverage mislabels the latest TEA protocol spam as a worm. Here’s what’s actually happening.
socket.dev
module-replacements 2.10.0: list of npm packages with better alternatives (built-in APIs, smaller packages, …) @e18e.dev github.com/es-tooling/m... #ECMAScript #JavaScript
Release 2.10.0 · es-tooling/module-replacements
What's Changed docs: add node 6.x-15.x compat info for is-builtin-module by @outslept in #227 fix: use "Node.js" instead of "NodeJS" by @outslept in #228 feat: add string-width to preferred manif...
github.com
Error chaining in JavaScript: cleaner debugging with Error.cause allthingssmitty.com/2025/11/10/e... #ECMAScript #JavaScript
Error chaining in JavaScript: cleaner debugging with Error.cause - Matt Smith
Use JavaScript's 'cause' property to chain errors, preserve context, and simplify debugging. Cleaner stack traces, better test assertions.
allthingssmitty.com
The inner workings of JavaScript source maps @polarsignals.com www.polarsignals.com/blog/posts/2... #ECMAScript #JavaScript
The Inner Workings of JavaScript Source Maps
A deep dive into how JavaScript source maps work under the hood, with examples showing how all the pieces fit together.
polarsignals.com
pnpm 10.21: installing Node.js runtimes for dependencies, not installing dependencies with decreased trust levels, and more @kochan.io @pnpm.io pnpm.io/blog/release... #ECMAScript #JavaScript
pnpm 10.21 | pnpm
Added support for Node.js runtime installation for dependencies and a setting for configuring trust policy.
pnpm.io
Why we migrated from Python to Node.js blog.yakkomajuri.com/blog/python-... #ECMAScript #JavaScript
Why we migrated from Python to Node.js
blog.yakkomajuri.com
ESLint v9.39.0: more precise problem locations, unified rule performance report, and more @eslint.org eslint.org/blog/2025/10... #ECMAScript #JavaScript
ESLint v9.39.0 released - ESLint - Pluggable JavaScript Linter
A pluggable and configurable linter tool for identifying and reporting on patterns in JavaScript. Maintain your code quality with ease.
eslint.org
Rspack 1.6: enhanced tree shaking, `import defer`, and more @rspack.dev rspack.rs/blog/announc... #ECMAScript #JavaScript
Announcing Rspack 1.6 - Rspack
Fast Rust-based web bundler
rspack.rs
No-op functions vs. optional chaining in JavaScript: performance deep dive @nodeland.dev adventures.nodeland.dev/archive/noop... #ECMAScript #JavaScript
Noop Functions vs Optional Chaining: A Performance Deep Dive
Discover why noop functions are significantly faster than optional chaining in JavaScript!
adventures.nodeland.dev
Ecosystem Performance (e18e): community showcase 2025-Q3 @e18e.dev e18e.dev/blog/communi... #ECMAScript #JavaScript
Community Showcase (Q3 2025)
An update on what the community have been up to in Q3 of 2025
e18e.dev
Five practical steps to stay safe on npm @sarahgooding.bsky.social @socket.dev socket.dev/blog/the-cha... #ECMAScript #JavaScript
The Changelog Podcast: Practical Steps to Stay Safe on npm -...
Learn the essential steps every developer should take to stay secure on npm and reduce exposure to supply chain attacks.
socket.dev
Pronto: manage concurrency via distributed message passing and functional patterns www.crockford.com/pronto.html #ECMAScript #JavaScript
Pronto
crockford.com
What’s new in ViteLand: October 2025 recap @thealexlichter.com @voidzero.dev voidzero.dev/posts/whats-... #ECMAScript #JavaScript
What’s New in ViteLand: October 2025 Recap
Our October 2025 recap includes VoidZero's $12.5M Series A, Vite+, Vite 7.2 Beta, Vitest 4, Rolldown and Oxc updates, upcoming events, and community highlights.
voidzero.dev
How to build a key-value database from scratch (with JavaScript code) www.nan.fyi/database #ECMAScript #JavaScript
Build Your Own Database
A step-by-step guide to building a key-value database from scratch.
nan.fyi
Migrating to new Node.js versions via codemods @nodejs.org @jakob.jingleheimer.dev @augustin-mauroy.bsky.social nodejs.org/en/learn/get... #ECMAScript #JavaScript
Node.js — Userland Migrations
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
New on MDN: JavaScript prototype pollution @developer.mozilla.org developer.mozilla.org/en-US/docs/W... #ECMAScript #JavaScript
JavaScript prototype pollution - Security | MDN
Prototype pollution is a vulnerability where an attacker can add or modify properties on an object's prototype. This means malicious values can unexpectedly appear on objects in your application, ofte...
developer.mozilla.org
New on MDN: Supply chain attacks @developer.mozilla.org developer.mozilla.org/en-US/docs/W... #ECMAScript #JavaScript
Supply chain attacks - Security | MDN
A software supply chain consists of all the software and tools used to create and maintain a software product. This includes not only the software developed for the product itself but all the software...
developer.mozilla.org
Vitest 4.0: Browser Mode stable, visual regression testing, Playwright trace files @voidzero.dev voidzero.dev/posts/announ... #ECMAScript #JavaScript
Announcing Vitest 4.0
Vitest 4.0 is released with Browser Mode being marked stable, Visual Regression testing support, and Playwright Trace support. The Vitest team will focus on performance improvement in the upcoming qua...
voidzero.dev
ViteConf 2025 recap @thealexlichter.com @voidzero.dev voidzero.dev/posts/whats-... #ECMAScript #JavaScript
ViteConf 2025 Recap
ViteConf 2025 was a landmark event for the Vite ecosystem, featuring major announcements like Vite+, Oxlint JavaScript Plugins, Vite DevTools, Nitro v3, and more. Read all about the highlights in our ...
voidzero.dev
