import React from 'react'; import ReactDOM from 'react-dom'; import FileView from './components/file-view/file-view'; import FileViewTip from './components/file-view/file-view-tip'; const { err } = window.app.pageOptions; class ViewFileUnknown extends React.Component { render() { return ( } /> ); } } class FileContent extends React.Component { render() { if (err) { return ; } } } ReactDOM.render ( , document.getElementById('wrapper') );