← React Intermediate Questions - Set 6 Q54

What is the difference between `useMemo` and `useCallback`?

React Intermediate Questions - Set 6

Example

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useMemo(() => compute(a), [a]);          // a value
useCallback(() => compute(a), [a]);      // a function

What to notice

• `useCallback(fn, deps)` is `useMemo(() => fn, deps)`.