Question

image我有一个api，当我单击mehr（more）按钮时，该api从Jasonfile加载了10个项目。如果再次单击，它将再加载10个，依此类推...在JPlayer documentation中，它们仅显示如何一次删除1个项目：

  myPlaylist.remove(); // Removes all items
  myPlaylist.remove(0); // Removes the 1st item
  myPlaylist.remove(1); // Removes the 2nd item
  myPlaylist.remove(-1); // Removes the last item

当我单击weniger（less）按钮时是否可以一次删除10个项目？我尝试过：

$(".pc-less-btn.btn-{{ pk }}").click(function() {
  myPlaylist.remove(10); // To Removes 10 items but doesn't works
});

Answer 1

选项1：设置新的播放列表

$(".pc-less-btn.btn-{{ pk }}").click(function() {
  const removeFromIndex = 10
  // remove from end
  const newPlaylist = myPlaylist.playlist.slice(myPlaylist.playlist.length - removeFromIndex)
  // remove from start
  // const newPlaylist = myPlaylist.playlist.slice(removeFromIndex)
  myPlaylist.setPlaylist(newPlaylist)
});

选项2：一一删除（不推荐）

$(".pc-less-btn.btn-{{ pk }}").click(function() {
  for (let i = 0; i < 10; i++) {
    myPlaylist.remove(i); // indexes of playlist probably changes
  }
});

Answer 2

这是一个棘手的解决方案。我想从播放列表中删除所有项目，所以我正在寻找解决方案，所以我发现这个技巧到目前为止对我有用。我已经在 2.9.2 版本中测试过

假设您的播放列表对象是 player，因此在任何 jQuery 单击事件中，您都可以像这样获取所选列表索引

$("#selector_id").on("click", function (e) {
    var object = $(this);
    var ids = []; // Fetch you ids in your way, either checkbox or anything or manual enter

    // Then get the playlist from the player object.
    var playlist = player.playlist;
    // Check if playlist has data.
    if (playlist && playlist.length) {
        var new_playlist = [];
        $.each(playlist, function (index, item) {
            // If index is not in your ids then get the playlist item.
            if (!ids.includes(index)) {
                new_playlist.push(item);
            }
        });

        // Now you have new playlist after removing selected items.
        // Check if we have anything in new playlist.
        if (new_playlist.length) {
            // If we have data in new playlist then init playlist.
            player._initPlaylist(new_playlist);
            // Then call the refresh function with clearMedia event.
            player._refresh(function () {
                $(player.cssSelector.jPlayer).jPlayer("clearMedia");
            });

            // You can call update Control if you have Controls enabled.
        }
    }
});

如何在点击时删除多个播放列表项？

2 个答案: