React Hooks Best Practices for 2026

React Hooks have transformed how we write components. Here are the best practices every React developer should follow.

1. Follow the Rules of Hooks

Always call hooks at the top level of your component:

// Good
function MyComponent() {
 const [count, setCount] = useState(0);
 const [name, setName] = useState('');

 // ...
}

// Bad - conditional hook
function MyComponent({ condition }) {
 if (condition) {
 const [value, setValue] = useState(0); // Never do this!
 }
}

2. Use Custom Hooks for Logic Reuse

Extract repeated logic into custom hooks:

function useLocalStorage(key, initialValue) {
 const [value, setValue] = useState(() => {
 const stored = localStorage.getItem(key);
 return stored ? JSON.parse(stored) : initialValue;
 });

 useEffect(() => {
 localStorage.setItem(key, JSON.stringify(value));
 }, [key, value]);

 return [value, setValue];
}

3. Optimize with useMemo and useCallback

Prevent unnecessary re-renders:

const expensiveResult = useMemo(() => {
 return computeExpensiveValue(data);
}, [data]);

const handleClick = useCallback(() => {
 doSomething(id);
}, [id]);

4. Clean Up Effects

Always clean up subscriptions and listeners:

useEffect(() => {
 const subscription = api.subscribe(handleUpdate);

 return () => {
 subscription.unsubscribe();
 };
}, []);

5. Use useReducer for Complex State

When state logic gets complex:

function reducer(state, action) {
 switch (action.type) {
 case 'increment':
 return { count: state.count + 1 };
 case 'decrement':
 return { count: state.count - 1 };
 default:
 return state;
 }
}

function Counter() {
 const [state, dispatch] = useReducer(reducer, { count: 0 });
}

Conclusion

Following these practices will help you write maintainable, performant React applications. Happy coding!