Modern React Patterns and Best Practices
December 9, 2025•1 min read
ReactFrontendJavaScript
# Modern React Patterns and Best Practices
React has evolved significantly since its introduction. Here are some modern patterns and best practices for building React applications.
## Hooks
Hooks allow you to use state and other React features in functional components.
### Custom Hooks
Create reusable logic with custom hooks:
```typescript
function useFetch(url: string) {
const [data, setData] = useState(null);
const [loading, setLoading] = useState(true);
useEffect(() => {
fetch(url)
.then(res => res.json())
.then(data => {
setData(data);
setLoading(false);
});
}, [url]);
return { data, loading };
}
```
## Component Composition
Prefer composition over inheritance. Build complex UIs from simple, reusable components.
## Performance Optimization
- Use React.memo for expensive components
- Implement code splitting with React.lazy
- Optimize re-renders with useMemo and useCallback
- Use virtualization for long lists
## State Management
- Use local state for component-specific data
- Use Context for shared state
- Consider Redux or Zustand for complex state management
## Conclusion
Following these patterns will help you build maintainable, performant React applications.