USECALLBACK Vs USEMEMO HOOK

useCallback and useMemo are both hooks provided by React to optimize performance in functional components by memoizing values. While they serve similar purposes, they are used in different scenarios:

1. useCallback:

• "useCallback" is primarily used to memoize functions. It returns a memoized version of the callback function that only changes if one of the dependencies has changed.
• It's useful when passing callbacks to child components that rely on reference equality to prevent unnecessary re-renders.
• Syntax: const memoizedCallback = useCallback(callback, dependencies)

2. useMemo:

• "useMemo" is used to memoize the result of a function call. It re-computes the memoized value when one of the dependencies has changed.
• It's useful for optimizing expensive computations or calculations that are not related to rendering.
• Syntax: const memoizedValue = useMemo(() => computeExpensiveValue(a, b), [a, b])