Releasing Babel 8 today: ESM-only, drop ES5 default, and a smooth migration path
ESM-only, Node.js 22+, modern browser target, and assumptions over loose and spec.
JavaScript news
CSS reacts, JS just listens
A tiny library that exposes runtime state to CSS through custom properties.
The quiet problem with unnecessary async
Marking sync code as
asyncchanges its contract and propagates Promises through callers.
CSS vs. JavaScript: exploring the performance implications of different animation strategies
How CSS, Web Animations API, GSAP, and Motion behave under main-thread congestion.
The HTML Sanitizer API
Browser-native XSS-safe HTML insertion without DOMPurify or other libraries.
Soon we can finally banish JavaScript to the ShadowRealm
A look at the TC39 ShadowRealm proposal for isolating JavaScript in clean execution contexts.
Your options for preloading images with JavaScript
Five approaches compared with their caching and CORS trade-offs.
Fully local code embeds
A web component for isolated code sandboxes without third-party embeds.
Progressive web components
An HTML-and-CSS-first library for building web components that hydrate with JS.
Native JSON modules are finally real
Import attributes syntax now works in browsers and runtimes without bundlers.
Form-associated custom elements in practice
Retrofitting AgnosticUI with ElementInternals and form validation.
Temporal: the 9-year journey to fix time in JavaScript
From TC39 proposal to Stage 4, with a shared Rust implementation across engines.