Modern JavaScript Features of ES2027
Language features headed for ECMAScript 2027, such as Temporal and explicit resource management, with browser support and fallbacks.
Content tagged es2027
Snippet:JavaScript Spin-Wait Lock with
Atomics.pause()Spin briefly with Atomics.pause(), then block with Atomics.wait().A copy-paste JavaScript spin-then-sleep lock using ES2027 Atomics.pause() and Atomics.wait() over a SharedArrayBuffer, with Node.js and browser worker examples.Post:Backwards-Compatible JavaScript: Polyfills and Baseline
Use new JavaScript without breaking older browsers.Write backwards-compatible JavaScript: feature detection, safe core-js polyfills, transpiling vs polyfilling, Baseline and browserslist queries.Post:What's New in ES2027: Temporal, using and More
Temporal, using and five more confirmed ES2027 features.Every confirmed ES2027 feature as of November 2026: Temporal, using, Iterator.zip, chunks, windows, join, includes and Atomics.pause, with examples.