질문&답변
createRoot도 잘 했는데 에러가 나네요
import React from "react"; import ReactDOM from "react-dom/client"; import "./index.css"; import App from "./App"; import reportWebVitals from "./reportWebVitals"; import Library from "./chapter_03/Library"; import Clock from "./chapter_04/Clock"; const root = ReactDOM.createRoot(document.getElementById("root")); setInterval(() => { root.render( ); }, 1000); // If you want to start measuring performance in your app, pass a function // to log results (for example: reportWebVitals(console.log)) // or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals reportWebVitals(); index.js 파일입니다
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