Indexlist component based better-scroll for react。
npm install react-indexlist --save
or yarn add react-indexlistimport IndexList from 'react-indexlist';
import 'react-indexlist/dist/index.css';handleSelect = (item) => {
    console.log(item);
}
<IndexList data={arr} onSelect={this.handleSelect} className="my-indexlist" />propTypes: {
    // className of component
    className: PropTypes.string,
    // Array of list
    data: PropTypes.array.isRequired, // Default: Array<{ title: string, items: array<{ name: string }> }>
    // render item by self, return ReactNode
    renderItem: PropTypes.func, // function (item)
    // onClick item callback
    onSelect: PropTypes.func, // function (item)
}

