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useRef
useRef() 함수가 왜 필요하고, 언제 사용하는지에 대해 알아보자. > 상태 변경 -> 컴포넌트 재렌더링 React 컴포넌트는 기본적으로 내부 상태(state)가 변할 때마다 다시 렌더링이 된다. 예를 들어 아래 컴포넌트의 버튼을 5번 클릭하면 count 상태값은 5번 바뀌게 된다. import React, { useState } from...
2022년 5월 31일
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