React Hooks revolutionized how we write components by allowing us to use state and lifecycle methods in functional components.

Key Concepts

useState Hook

The useState hook allows you to add state to functional components:

const [count, setCount] = useState(0);

useEffect Hook

The useEffect hook lets you perform side effects in function components:

useEffect(() => {
  document.title = `Count: ${count}`;
}, [count]);

Related Notes

• JavaScript Async Patterns - Understanding async patterns helps with useEffect
• State Management - Hooks are fundamental to modern state management

Best Practices

1. Always include dependencies in useEffect dependency array
2. Use custom hooks to share stateful logic
3. Keep hooks at the top level of components