/** * Copyright (c) 2017-present, Facebook, Inc. * * This source code is licensed under the MIT license found in the * LICENSE file in the root directory of this source tree. */ import React from 'react'; import Loadable from 'react-loadable'; import {BrowserRouter} from 'react-router-dom'; import ReactDOM from 'react-dom'; import App from './App'; // Client side render (e.g: running in browser) to become single-page application (SPA) if (typeof document !== 'undefined') { Loadable.preloadReady().then(() => { ReactDOM.render( , document.getElementById('app'), ); }); }