Delete All Wunderlist Items in a List. Per http://tumble.jeremyhubert.com/post/9706062996/delete-all-tasks-in-a-wunderlist

DeleteAll.js

(function () {
  function deleteAll() {
  
    var list = $('ul#list'),
      list_id = parseInt($(list[0]).attr('rel'), 10),
      list_name = $('#list' + list_id + ' b').html();

    if (list_id > 0) {
      if (confirm('Are you sure you want to delete all the items in ' + list_name)) {
        list.find('li').each(function () {
          var id = parseInt($(this).attr('id'), 10),
            task = { id: id, list_id: list_id, deleted: 1 };
          $.ajax({
            url: '/ajax/tasks/update/',
            type: 'POST',
            data: {'task': JSON.stringify(task)},
            success: function (response_data, text, xhrobject) {
              var response = ajaxresponse.check(response_data);
              if (response.status === 'success') {
                wunderlist.updateBadgeCount();
              }
            }
          });
        });
        alert('Done. Please reload the page.');
      }
    }
  }
}());

This is great, thanks. Could this be easily modified to remove previously deleted items?