jsx import React from 'react' ; import ReactDOM from 'react-dom' ; import { jsx } from '@emotion/core' ; import App from './App' ; const STRICT_MODE = false ; ReactDOM . render ( STRICT_MODE ? ( < React . StrictMode > < App /> < /React.StrictMode>) : (<App / > ) , document . getElementById ( 'root' ) ) ; if ( import . meta . hot ) { import . meta . hot . accept ( ) ; }