How can I optimize useEffect in my React application?

How can I optimize useEffect in my React application?

To optimize useEffect, you can minimize its dependencies, use cleanup functions, and consider using useMemo or useCallback.

What do you mean by minimizing dependencies?

Minimizing dependencies means only including variables in the dependency array that are necessary for the effect to run, reducing unnecessary re-renders.

Can you give an example of using cleanup functions?

Sure! If you're setting up a subscription in useEffect, you can return a cleanup function to unsubscribe when the component unmounts.

How do useMemo and useCallback help with optimization?

useMemo caches the result of a computation, while useCallback caches a function reference, both preventing unnecessary re-renders.