When should I use useCallback in React?

Can you explain when I should use useCallback in React?

Sure! You should use useCallback when you want to memoize a function to prevent unnecessary re-creations on re-renders.

Why is it important to prevent function re-creations?

Preventing re-creations helps optimize performance, especially in components that rely on reference equality for props.

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

Absolutely! Here's a simple example: useCallback(() => { /* your function */ }, [dependencies]); This memoizes the function based on the dependencies.

Are there any downsides to using useCallback?

Yes, overusing it can lead to unnecessary complexity. It's best used when performance issues arise.