React Hooks: A Deep Dive into useState and useEffect

What Are React Hooks?

React Hooks are functions that let you use state and other React features in functional components. Before Hooks, you had to use class components to access state management.

The useState Hook

The useState Hook lets you add state to functional components. Here's a basic example:

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

The useEffect Hook

The useEffect Hook lets you perform side effects in functional components. It runs after the component renders:

useEffect(() => { /* effect logic */ }, [dependencies]);

Best Practices

Always list all dependencies in the dependency array, keep effects focused on a single concern, and use cleanup functions to prevent memory leaks.