Document React components in Storybook with CSF, MDX, controls, decorators, and testing. Practical patterns, examples, and checklists.
Learn React i18n with i18next: setup, plurals, formatting, RTL, lazy loading, testing, and best practices for production-ready localization.
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.
Apollo vs Relay: strengths, trade‑offs, and when to choose each for React GraphQL apps, from caching and pagination to SSR, typing, and developer UX.
