import '@babel/polyfill'; import React from 'react'; import { render } from 'react-dom'; import App from 'components/App'; function renderApp(AppComponent = App) { render(, document.getElementById('root')); } if (process.env.NODE_ENV !== 'test') { renderApp(); } if (module.hot) { // eslint-disable-next-line global-require module.hot.accept('./components/App', () => renderApp(require('components/App').default)); }