var createSongRow = function(songNumber, songName, songLength) {
var template =
'<tr class="album-view-song-item">'
+ ' <td class="song-item-number" data-song-number="' + songNumber + '">' + songNumber + '</td>'
+ ' <td class="song-item-title">' + songName + '</td>'
+ ' <td class="song-item-duration">' + songLength + '</td>'
+ '</tr>'
;
return template;
};
在行<td class="song-item-number" data-song-number="' + songNumber + '">' + songNumber + '</td>'
是數據 - 歌曲號另一個類ID?這行有兩個類名嗎?