What I’m stuck on, what clicked, and what I’d read again.
All blogs in the React & JS Performance series in reading order, plus quick reference on layout thrashing, will-change, passive listeners, and INP.
How to answer practical frontend performance interviews in React: a seven-area framework—rendering, network, mobile, bundles, assets, memory, and measurement.
Why a perfect Lighthouse score doesn't prevent out-of-memory tab crashes in long-running SPAs — and how to build apps that survive 8-hour sessions.
How V8's generational garbage collector works, why high allocation rate causes jank, and practical strategies to reduce GC pressure in frontend code.
How WebSocket subscriptions, stale closures, and unbounded caches create memory leaks in React apps — and how to find and fix them with Chrome DevTools.
How image formats, font loading, and third-party tag managers silently destroy LCP and CLS scores, and the exact fixes for each that actually work.
Your 2MB bundle isn't fate. How bundlers merge modules, why tree shaking fails silently, and how to split code so users only load what they need.
22 more blog posts on the full list.
All blogs