sample.js

import React from 'react';
import ReactDOM from 'react-dom';


class SampleComponent extends React.Component{
  render(){
    return (
          <div>
            <h1>Hello, {this.props.name}</h1>
          </div>
         );
      }
}


ReactDOM.render(<SampleComponent name = "Charles" />,
document.getElementById('app'));