backbone.js - 使用 Remove 事件检测从 Backbone.js 中的集合中删除的模型

Question

我的问题是，当我们绑定/监听集合的添加事件时，有没有办法检测从集合中删除的模型。

例如：

this.listenTo(monthsOnBoardCollection, "remove", function(){
  //is it possible here to find what got removed from the collection ? 
}

Answer 1

You have the Catalog of Events which shows the arguments being passes to the event.

"remove" (model, collection, options) — when a model is removed from a collection.

So it's basically:

this.listenTo(monthsOnBoardCollection, "remove", function(model, collection, options){
  //now you have the model, the collection and the options which were passed to the remove method
}