Performance monitoring for web components
Using the User Timing API to track real-world component performance
JavaScript news — Page 3
Testing HTML Light DOM web components is easier than expected
How Light DOM, Lit, and Testing Library made a legacy app’s web components testable.
The inner workings of JavaScript source maps
A deep dive into how source maps link minified JavaScript back to original code.
Nineteen talks from the CascadiaJS 2025 conference
Playlist offers 19 sessions on AI, JS origins, frameworks, CSS, monetization and more.
<color‑input>, a modern color picker web componentAdvanced color picker supports wide-gamut and multiple color spaces.
Searchable, collapsible sections with
hidden="until-found"Enhancing collapsible sections with progressive discovery and better find-in-page support.
Directives and the platform boundary
Tanner Linsley warns that framework directives blur the line between JS and the platform.
setHTML(), Trusted Types and the Sanitizer APINew setHTML() and Sanitizer API prevent XSS by safely inserting HTML into the DOM.
Evaluating frameworks performance
Comparing 10 meta-frameworks: Marko, SolidStart, SvelteKit, Qwik lead. React has limits.
Importing vs fetching JSON
When to use JSON module imports vs fetch(): caching, responses, errors, and use cases.
React Compiler v1.0
Stable compiler auto-optimizes components, improves speeds up to 12%, used in Meta apps.
Announcing Vite+: a unified toolchain for JavaScript
Rust-based unified toolchain with build, test, lint, format, and visual tools for JS projects.