Difference between useCallback and useMemo?

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miliko mikoyan2019-03-17 00:24:16

React

miliko mikoyan, 2019-03-17 00:24:16

I read the react manual and didn't understand when to use useCallback and useMemo?

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Anton Spirin, 2019-03-17
@miliko0022

The call useCallback(fn, deps)is equivalent . The difference is in the additional wrapper that you don't have to write when using useCallback if you want to return a memorized callback. useMemo(() => fn, deps)