Can you explain the difference between useCallback and useMemo in React?
Sure! Both useCallback and useMemo are hooks in React that help optimize performance, but they serve different purposes.
What does useCallback do specifically?
useCallback returns a memoized version of a callback function, which helps prevent unnecessary re-creations of the function on re-renders.
And what about useMemo?
useMemo returns a memoized value, which means it will only recompute the value when its dependencies change, helping to avoid expensive calculations.
When should I use each of them?
Use useCallback when you need to memoize a function, and useMemo when you want to memoize a computed value.
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