anchor.diff:    
     void getAllAlbums([String artist]) {
       String requestStr;
  -    if(artist.isEmpty || artist == null) {
  +    if(artist == null) {
         requestStr = "/albums";
       }
       else
  
positive.code:       titleDiv.style.display = "none";
  
        clearAllData();
        //getAllAlbums();
        
        albumsButton.classes.add("active");
        artistsButton.classes.remove("active");
  
negative.code:       dataList.style.display = "block";
        songsTable.style.display = "none";
        
        if(artist != null) {
          LIElement allSongsElement = new LIElement()
            ..text = "All Songs";
          dataList.children.add(allSongsElement);
        }
        
        List<String> albums = JSON.decode(request.responseText);
        albums.forEach((String album) {
          LIElement albumElement = new LIElement()
  