react-patterns

React 18 performance optimization relies on memoization techniques and React.memo to prevent unnecessary re-renders. Applying these strategies ensures your functional components only re-render when their props change, keeping complex UIs fast.

Handle API data fetching and form validation in React by integrating React Query with custom hooks for state management, and react-hook-form for validation. This combination provides robust error handling and type-safe data flows within your TypeScript components.

Implement error boundaries in modern React by wrapping component trees to catch JavaScript errors and display fallback UIs. You can then trigger API error alerts when data fetching fails, ensuring graceful error handling throughout your application.

Use React context patterns for state management when you need to pass data deeply through the component tree without prop drilling. Custom hooks are better for encapsulating reusable stateful logic, while context provides a broader scope for shared application state.

TypeScript is not strictly required to use React 18 component composition and optimization techniques, but it is highly recommended. Using TypeScript provides explicit props typing and compile-time safety, which significantly enhances the maintainability of your custom hooks and components.