from 'react'; import { Grid, Column } from '@sencha/ext-modern'; export default class MyGrid extends Component { store = Ext.create('Ext.data.Store', {...}); render() { return ( <Grid title="Stock Prices" store={this.store}> <Column text="Company" dataIndex="name" width="150"/> <Column text="Price" width="85" dataIndex="price" formatter='usMoney‘/> </Grid> ) } } MyGrid.js