When should I use useMemo and useCallback in React?

Can you explain when to use useMemo and useCallback in React?

Sure! useMemo is used to memoize expensive calculations, while useCallback is used to memoize functions to prevent unnecessary re-creations.

Can you give me an example of how to use useMemo?

Absolutely! If you have a component that calculates a value based on props, you can wrap that calculation in useMemo to avoid recalculating it on every render.

What about useCallback? How is it different?

useCallback is similar, but it's specifically for functions. It helps to prevent a function from being recreated unless its dependencies change.

When should I avoid using these hooks?

You should avoid them when the performance gain is negligible, as they can add complexity to your code.