javascript - 如何从 Backbone 中的对象获取元素？

Question

我的对象模型为:

var wo = new WordModel({
    "url": window.location.href,
    "time": toDay(),
    "w": w.trim()
});

timelineCollection.add(wo);

我尝试获取 timelineCollection 中的所有元素，其中 time 为 04/02/2017。我试过这个:

var o = {
    time: "04/02/2017"
};

var filtered = timelineCollection.where(o);
console.log(filtered);

但这对我不起作用

Answer 1

Backbone 收藏 where function这确实是你应该使用的。

// short syntax, every object becomes a Backbone.Model by default.
var collection = new Backbone.Collection([{
    id: 0,
    time: "04/02/2017",
  }, {
    id: 1,
    time: "05/02/2017",
  },
  // you can mix both plain objects and Model instances
  new Backbone.Model({
    id: 2,
    time: "04/07/2017",
  }), new Backbone.Model({
    id: 3,
    time: "04/02/2017",
  })
]);

// passing an existing model works too.
var model = new Backbone.Model({
  id: 4,
  time: "04/02/2017",
});

collection.add(model);

console.log(collection.where({
  time: "04/02/2017"
}));

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