class ImageUpload extends React.Component {
  state = {
    files: []
  }

  fileSelectedHandler = (e) => {
    this.setState({ files: [...this.state.files, ...e.target.files] })
  }

  render() {
    return (
      

        
Upload images
        
Images
        
      
    )
  }
}


ReactDOM.render(, document.getElementById('app'))