Discover the latest in frontend development with our comprehensive guides, tutorials, and industry insights.
A deep, practical guide to Core Web Vitals for frontend interviews: what LCP/CLS/INP measure, common causes, how to debug in DevTools, and high-impact fixes.
A deep, practical guide to Service Workers: lifecycle, caching strategies (cache-first, network-first, stale-while-revalidate), offline support, and common pitfalls.
A deep, interview-ready guide to HTTP caching: Cache-Control directives, ETag/If-None-Match, Last-Modified, CDN caching, and how frontend apps should leverage caching safely.
A deep, interview-ready guide to how browsers render pages: DOM/CSSOM, render tree, layout (reflow), paint, compositing, GPU layers, and practical performance fixes.
A deep, interview-ready guide to event delegation: bubbling/capturing, delegation patterns, performance benefits, common pitfalls, and clean implementations for real UIs.
Interview-ready guide to debounce vs throttle: how they work, when to use each, and clean JavaScript implementations (with leading/trailing options).
A practical guide to Map/Set and WeakMap/WeakSet: key differences, memory behavior, real use cases, and common interview questions with examples.
A practical guide to frontend memory leaks: the most common causes (listeners, timers, DOM refs, closures), how to detect them in Chrome DevTools, and how to fix them.
Practical performance levers: memoization, splitting, virtualization, and avoiding unnecessary renders.
