Implement robust React error boundaries with TypeScript examples, reset strategies, logging, Suspense interplay, testing, and accessibility.
A practical React guide to ARIA—when to use it, when not to, plus patterns for focus, labels, widgets, and testing.
Build fast, resilient optimistic UI updates in React. Learn patterns, rollback, and examples using plain hooks and TanStack Query.
Build a headless React UI component library step by step—accessibility, state, TypeScript, testing, and packaging—using a fully featured Tabs example.
Learn React lazy loading and code splitting with Suspense, routes, and bundlers. Includes patterns, pitfalls, and performance tips.
Learn how to diagnose and fix React hydration mismatches with step-by-step checks, common causes, and production-safe patterns for SSR and Next.js.
