content: import React from 'react';
  export default class One extends React.Component {
    constructor(props) {
      super(props)
      this.state = {
        higher: 0
      }
    }
    componentWillMount(){
      // let higher = this.props.higher * 2
      // this.setState({
      //   higher: higher
      // })
    }
    render() {
      return (
        // <div>{this.state.higher}</div>
        <div>{this.props.higher}</div>
      )
    }
  }