相关疑难解决方法(0)

我正在尝试以相反的顺序对Backbone.js集合进行排序.以前有关于如何使用整数执行此操作的回复,但没有带有字符串的回复.

var Chapter  = Backbone.Model;
var chapters = new Backbone.Collection;

chapters.comparator = function(chapter) {
  return chapter.get("title");
};

chapters.add(new Chapter({page: 9, title: "The End"}));
chapters.add(new Chapter({page: 5, title: "The Middle"}));
chapters.add(new Chapter({page: 1, title: "The Beginning"}));

alert(chapters.pluck('title'));

上面的代码对A - > Z的章节进行了排序,但是如何编写一个比较器,从Z - > A中对它进行排序？

我有一个简单的backbone.js twitter应用程序,需要以相反的顺序排序推文.我目前按日期实施了一个比较器排序.单击"反向"按钮时(如视图中所示)如何反转排序所有推文而不返回比较器？我的印象是,当我调用sort时,它将尝试重新呈现列表(这意味着比较器将再次对数据进行排序,这是不合需要的).我该如何覆盖它？

Tweet = Backbone.Model.extend();

 // Define the collection
Tweets = Backbone.Collection.extend(
{
    model: Tweet,
    // Url to request when fetch() is called
    url: 'http://search.twitter.com/search.json?q=codinghorror',

    parse: function(response) {

        //modify dates to be more readable
        $.each(response.results, function(i,val) {
            val.created_at = val.created_at.slice(0, val.created_at.length - 6);
          });

        return response.results;
    },
    // Overwrite the sync method to pass over the Same Origin Policy
    sync: function(method, model, options) {
        var that = this;
            var params = _.extend({
                type: 'GET',
                dataType: 'jsonp',
                url: that.url,
                processData: true …