Hooks

const memoizedCallback = useCallback( () => { doSomething(a, b); }, [a, b], ); useCallback은 memoized callback을 리턴한다. memoized는 뭘까? 위키백과에 따르면 In computing, memoization or memoisation is an optimization technique used primarily to speed up computer programs by storing the results of expensive function calls and returning the cached result when the same inputs occur again. 컴퓨팅에서 memoization 또는 memo..