Build a robust React dark mode with CSS variables, system preference, SSR-safe setup, persistence, accessibility, and Tailwind integration.
Build fast, memory‑efficient React virtualized lists with tuning tips for overscan, variable heights, a11y, and profiling—plus practical code examples.
Learn Next.js image optimization with next/image: responsive sizes, AVIF/WebP, blur placeholders, CDN loaders, caching, and production checklist.
A practical guide to React dynamic imports and lazy routes with React Router, preloading strategies, SSR notes, and performance pitfalls.
Hands-on Framer Motion tutorial for React: setup, key APIs, gestures, layout, AnimatePresence, scroll, SVG, performance, TypeScript, testing.
A practical guide to unit testing React with Testing Library—setup, queries, user events, async, MSW, providers, and best practices.
