What are the best practices for using the useEffect hook in React?

What are the best practices for using the useEffect hook in React?

Some best practices include: 1) Specify dependencies correctly, 2) Avoid side effects in the render phase, 3) Clean up effects to prevent memory leaks.

Can you explain why specifying dependencies is important?

Specifying dependencies ensures that the effect runs only when necessary, preventing unnecessary re-renders and potential performance issues.

What should I do if I have multiple useEffect hooks?

It's best to keep them focused on a single responsibility. This makes your code easier to read and maintain.

How can I clean up effects properly?

You can return a cleanup function from your useEffect. This function will run when the component unmounts or before the effect runs again.

Are there any common pitfalls to avoid?

Yes, common pitfalls include forgetting to add dependencies, causing infinite loops, and not cleaning up effects.