Jammming - this.state.searchResults is not rendering

Hi, I am building Jammming web app following instructions of Codecademy.

I reached at step -32, where map method needs to be defined for rendering each tracks

But, when add the map method on props, it runs without any error, but chrome stops rendering.

After checking all my previous steps I noticed that there is problem in this.state.searchResults

please refer below code, It runs without any error but to does not render

export class App extends React.Component {

  constructor(props) {
    super(props);
    this.state = { 
        searchResults:  [
          {name: 'name1', artist: 'artist1', album: 'album1', id: 'id1'},
          {name:' name2', artist: 'artist2', album: 'album2', id: 'id2'},
          {name: 'name3', artist: 'artist3', album: 'album3', id: 'id3'}
         ] 
       }
    }

  render() {
    return (
    <div>  
      <h1>Ja<span class="highlight">mmm</span>ing </h1>      
      <div className="App">       
        { this.state.searchResults.map( track => {
            return track
          })
        } 
      </div>
    </div>
    
  );
}
}