using materialize css with react

1import React from 'react';
2import M from 'materialize-css';
3....
4// ref can only be used on class components
5class SomeComponent extends Component {
6  // get a reference to the element after the component has mounted
7  componentDidMount(){
8    M.Sidenav.init(this.sidenav);
9  }
10
11  render(){
12    return (
13      <ul className={this.props.classes}
14          ref={ (sidenav) => {this.sidenav = sidenav} }
15          id={this.props.id}>
16        // menuItems
17      </ul>
18    )
19  }
20}

1//to use materialize css in react js
2
3npm install materialize-css