请参考以下代码中的注释:
$('#btnDelete').on('click', function()
{
var treeView = $("#treeview").data("kendoTreeView");
var userId = $('#user_id').val();
$('#treeview').find('input:checkbox:checked').each(function()
{
debugger;
var li = $(this).closest(".k-item")[0];
var notificationId = treeView.dataSource.getByUid(li.getAttribute('data-uid')).ID;
if (notificationId == undefined)
{
//if the notification ID is "undefined" here, I want the ".EACH" 'loop' to continue to the next item.
}
$.ajax(
{
url: '../api/notifications/deleteNotification?userId=' + userId + '¬ificationId=' + notificationId,
type: 'DELETE'
}).done(function()
{
var treeview = $("#treeview").data("kendoTreeView");
treeview.destroy();
CreateNotificationTree(userId);
console.log('Delete successful.');
}).fail(function(jqXHR, status, error)
{
console.log("Error : " + error);
});
treeView.remove($(this).closest('.k-item'));
});
});