TypeScript has become essential for large React projects. Here are the practices we've found most valuable.
Strict Mode
Always enable strict mode in tsconfig.json. It catches more errors at compile time and forces better coding practices.
Custom Hooks for Logic
Extract business logic into custom hooks. This keeps components clean and makes logic reusable and testable.
Component Composition
Favor composition over inheritance. Build small, focused components and compose them together rather than creating large, complex components.
State Management
For small to medium apps, React Query + Context API is usually enough. Only add Redux when you truly need global state at scale.
Performance
Use React.memo, useMemo, and useCallback strategically — not everywhere. Profile first, optimize second.