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Languages & runtimes · #javascript
A practical guide to configuring Biome's formatter, linter rules, and per-glob overrides in a single biome.json file, with a worked example, verification steps, and current limitations.
Global mode is fine for demos, but on real pages it pollutes the namespace and leaks animation loops. Here's why p5.js instance mode — with a worked example and cleanup pattern — is the practical default.
Learn how to spot, diagnose, and fix unhandled promise rejections in async/await code across browsers and Node.js.
Rollup's tree-shaking works because ES modules are statically analyzable. Here's how it prunes unused code, a verifiable example, and the side-effect and CommonJS pitfalls that defeat it.
Learn why the no-console rule is essential for production builds, how to configure it for selective use, avoid common pitfalls, and verify it in CI. A practical guide with examples.
Jasmine's spyOn replaces one method on one object, records its calls, and restores the original after each spec. Here's how to pick the right strategy and avoid the common traps.
Discover how Knockout.js pure computed observables reduce unnecessary UI updates by only notifying subscribers when values actually change, improving performance in complex applications.
Decide when to turn on WebStorm Live Edit, compare modes, understand trade‑offs, and validate instant browser updates without a full reload.
An architecture note on building a Mithril SPA with just m.route resolvers and the auto-redraw system: requirements, trust boundaries, failure modes, and verification checks.
biome
p5js
rollup
eslint
jasmine
knockout
webstorm