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참고 : https://medium.com/@nugen/react-hooks-calling-child-component-function-from-parent-component-4ea249d00740 React Hooks-Calling Child Component Function From Parent Component In this article we’re are assuming that you are somewhat familiar with React Hooks medium.com [ 상위 컴포넌트 ] import React, { useRef } from "react"; const ParenctComponent = () => { const myRef = useRef({}); function doSomet..