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Posts tagged #javascript

A mix of technical deep-dives, career reflections, and dispatches from the road.

tag: #javascript

Uint8Array toBase64 and toHex: Stop Round-Tripping Bytes Through btoa thumbnail

developmentSep 24, 2026· 3 min

Uint8Array toBase64 and toHex: Stop Round-Tripping Bytes Through btoa

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.

import defer: Lazy Modules Without Going Async thumbnail

developmentSep 21, 2026· 3 min

import defer: Lazy Modules Without Going Async

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.

WebNN: The Only Web API That Can Reach Your NPU thumbnail

developmentSep 14, 2026· 3 min

WebNN: The Only Web API That Can Reach Your NPU

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 Snippets: Reuse Markup Without a New Component thumbnail

developmentSep 7, 2026· 3 min

Svelte Snippets: Reuse Markup Without a New Component

Snippets let you define reusable chunks of markup inline and render them like functions. They replace slots, kill the let: directive, and mean you stop…

Async Svelte: Using await Directly in Your Components thumbnail

developmentAug 30, 2026· 4 min

Async Svelte: Using await Directly in Your Components

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

The Web Locks API: One Tab Does the Work, the Rest Wait thumbnail

developmentAug 27, 2026· 4 min

The Web Locks API: One Tab Does the Work, the Rest Wait

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…

Form-Associated Custom Elements: Web Components That Belong in a Form thumbnail

developmentAug 24, 2026· 3 min

Form-Associated Custom Elements: Web Components That Belong in a Form

Custom elements can be real form controls. Here is how formAssociated, ElementInternals, and setValidity retire the hidden-input hack for good.

Next.js Partial Prefetching: One Shell Per Route, Not One Per Link thumbnail

developmentAug 23, 2026· 4 min

Next.js Partial Prefetching: One Shell Per Route, Not One Per Link

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

Declarative Partial Updates: Out-of-Order HTML Streaming Without a Framework thumbnail

developmentAug 20, 2026· 4 min

Declarative Partial Updates: Out-of-Order HTML Streaming Without a Framework

Chrome 148 ships experimental support for filling HTML placeholders out of order and streaming markup into the DOM.

React's Activity Component: Hide UI Without Losing Its State thumbnail

developmentAug 17, 2026· 3 min

React's Activity Component: Hide UI Without Losing Its State

React 19.2's Activity component hides a subtree instead of unmounting it, so state, scroll position, and DOM survive the round trip.

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