In this chapter, we explored Backbone's Collection class. You learned how to add and remove Models and Model attributes, how to use the on and off methods to listen for events, how to control the sorting and indexing of Collections, and how to use fetch and save to exchange data with a remote server. We also examined the many Underscore methods of a Collection and how they can be used to realize the full power of a Collection.

In the next chapter, we'll take a look at Backbone's View class. Views allow you to render an HTML page, or a subset of one, using the data from the Models and Collections that we've already covered.