Posts tagged #performance

Astro's live content collections fetch CMS and API data at request time with the same typed API as build-time collections, and Astro 7's route caching keeps them fast.

Compression Dictionary Transport (RFC 9842) lets the browser tell your server which cached file it already has, so a redeployed bundle can arrive as a few-kilobyte delta instead of a full download.

JavaScript can finally turn bytes into base64 and hex (and back) without the String.fromCharCode and btoa dance. Here's how Uint8Array's new encoding methods work and where they replace the helpers you've been copy-pasting.

ES2026's import defer evaluates a module the first time you touch its namespace, not at startup, so you can move heavy work off the cold path without turning half your call stack async.

Next.js 16.3 turned on Turbopack's persistent build cache by default and published numbers as high as 5.5x. Most CI pipelines will see exactly zero of that, because the cache is a directory and containers start empty.

Almost every laptop shipped in the last two years has a neural processing unit sitting idle. WebNN is the only web standard that can actually talk to it…

Svelte 5.36 lets you use await at the top level of a component, inside $derived, and in your markup.

Your app already runs in five tabs at once, and they all think they are in charge. The Web Locks API gives the browser a real mutex so only one of them does…

Next.js 16.3 stops firing a prefetch request for every link in the viewport and caches one reusable loading shell per route instead.