Youtube Watch component: displaying the correct video

WatchContent.js

export class WatchContent extends React.Component {
  render() {
    if (!this.props.videoId) {
      return <div/>
    }
    return (
      <div className='watch-grid'>
        <Video className='video' id={this.props.videoId}/>
        <VideoMetadata viewCount={1000}/>
        <VideoInfoBox/>
        <Comments amountComments={112499}/>
        <RelatedVideos className='relatedVideos'/>
      </div>
    );
  }
}