TypeScript Tips for React Developers
Advanced TypeScript patterns and techniques that will improve your React development workflow and code quality.
TypeScript and React make a powerful combination, but getting the most out of this pairing requires understanding some advanced patterns and techniques.
Component Props Typing
Use interfaces or types to define your component props clearly. Leverage union types, optional properties, and generic types to create flexible, reusable components.
Custom Hooks with TypeScript
Create type-safe custom hooks that provide excellent IntelliSense and catch errors at compile time. Use generic types to make your hooks more flexible.
Event Handlers and Refs
Properly type event handlers and refs to avoid common runtime errors. Use React's built-in types like MouseEvent, ChangeEvent, and RefObject.
State Management
Leverage TypeScript's type system with useReducer and context providers. Create discriminated unions for reducer actions to ensure type safety.
API Integration
Define interfaces for your API responses and use them consistently throughout your application. Consider using tools like Zod for runtime validation.
Component Libraries
When building reusable component libraries, use advanced types like Omit, Pick, and Partial to create flexible APIs while maintaining type safety.
About this post
Practical TypeScript tips learned while transitioning to modern React development.