Inyect embeded song forumotion JQ

jQuery(document).ready(() => {
  if(typeof profileFields !== 'undefined'){
    profileFields.forEach(obj => {
      if(obj.id === '1'){
        const songIn = obj.content.indexOf('/track/');
    const song = (songIn != -1) && obj.content.substring(songIn);
        if(!!song){
          $('.spoti-song').append('<iframe src="https://open.spotify.com/embed' + song + '" width="300" height="380" frameborder="0" allowtransparency="true" allow="encrypted-media"></iframe>');
        }else{
          $('.spoti-song').append('<iframe src="https://open.spotify.com/embed/track/2zYzyRzz6pRmhPzyfMEC8s" width="300" height="380" frameborder="0" allowtransparency="true" allow="encrypted-media"></iframe>');
        };
      };
    });
  };
});