Mastering React Hooks: A Deep Dive into Modern State Management

React Hooks revolutionized how we write components. In this post, we'll explore the most important hooks like useState, useEffect, and useContext in depth.

We'll also cover custom hooks, performance optimizations with useCallback and useMemo, and common pitfalls to avoid. By the end, you'll have a solid understanding of how to leverage hooks for cleaner, more efficient React applications.

Understanding useEffect Dependencies

One of the trickiest parts of using hooks is managing the dependency array of useEffect. An empty array means the effect runs only once, while omitting it causes the effect to run on every render.

useEffect(() => {
  // This runs on every render
});

useEffect(() => {
  // This runs only once
}, []);

useEffect(() => {
  // This runs when 'someValue' changes
}, [someValue]);