#React

Explain the differences between: - `useMemo` vs `useCallback` - `useState` vs `useEffect`

Explain what React hooks are and why they are used.

Explain the purpose of React.memo(). How is it different from useMemo(), and in what scenarios would you choose one over the other?

Explain the purpose of useMemo(). When should it be used, and when can it actually hurt performance?

Create a custom React hook that synchronizes a state value with localStorage. The hook should: - Read the initial value from localStorage - Keep React state and localStorage in sync - Return the current value and a setter function - Handle changes to the storage key correctly.