react-patterns

Modern React patterns use functional components with hooks like useState, useContext, and useReducer for state management. Compound components, render props, and HOCs organize component logic for reusability. Server Components separate server and client rendering concerns, optimizing performance and bundle size in React 18+.

State management in React depends on scope: useState for local component state, useContext for shared context across components, and useReducer for complex state transitions. For larger apps, patterns like compound components and container/presenter separation maintain scalability while keeping code maintainable.

Code splitting divides your bundle into smaller chunks loaded on demand, reducing initial load time. Memoization caches component renders and expensive computations to prevent unnecessary recalculations. Virtualization renders only visible list items, essential for handling large datasets efficiently.

Server Components execute on the server, reducing client-side JavaScript and enabling direct database access without APIs. Use them for data fetching, form handling, and sensitive operations. Client components handle interactivity. React 18+ patterns guide when to split responsibilities between server and client.

Yes. Hooks, render props, HOCs, and compound components coexist in React 18+. Hooks are the modern approach for most cases, but render props and HOCs remain valid patterns for specific scenarios like cross-cutting concerns or library design. Choose based on component complexity and reusability needs.

Compound components group related elements with shared internal state and a cohesive API—like form controls working together. Container/presenter (smart/dumb) separates data-fetching logic from UI rendering. Both enable scalable, maintainable code; compound components offer tighter coupling, while container/presenter provides clearer separation.