쪼렙 as! 풀스택

import { Component } from 'react'; class Child extends Component { constructor(props) { super(props) if(props.onParentRef) { props.onParentRef(this); } } blahblah = () => { console.log("BlahBlah~"); } render() { return ( 여기는 Child 컴포넌트. ); }} class Parent extends Component { constructor(props) { super(props) this.childComponent; } callChildMethod = () => { this.childComponent.blahblah() } render..