A series covering React with modern patterns (hooks, server components, suspense) and the ecosystem around it (Query, Zustand, Testing Library).
Start with Cheatsheet 01 — React Basics .
Cheatsheet: components, JSX, props, state, conditional rendering, lists.
Cheatsheet: every built-in hook with practical usage and gotchas.
Cheatsheet: when to skip useEffect, fetching, subscriptions, race-safe patterns.
Cheatsheet: controlled inputs, refs, RHF + Zod, validation, file inputs.
Cheatsheet: providers, custom context hook, splitting contexts, perf gotchas.
Cheatsheet: when to memoize, React Compiler, perf measurement.
Cheatsheet: React DevTools profiler, common bottlenecks, code splitting, Suspense.
Cheatsheet: Suspense boundaries, lazy, use(), data fetching, ErrorBoundary.
Cheatsheet: server components, client components, async server components, server actions.
Cheatsheet: React Router 7, TanStack Router, params, loaders, search.