Testing Backbone collections

Backbone collections are basically Arrays with superpowers:

  • They come with a bunch of enumerable functions built in, such as map, sort, and select
  • They have support for all sorts of events such as addition, removal, and even changes made to individual models it contains
  • They support reading data from a remote server

Expect to use it a lot in conjunction with models in your Backbone application.

Let's see a small code snippet to get a feeling on how it works. Here we instantiate a new collection passing an array with an initial data item for it to start:

var collection = new Backbone.Collection([
  { id: 1, name 'first' }
]);

It will by default, create a new Backbone.Model for each object in that array, but it is possible to ...

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