emberjs/ember.js — pull request #3905 by southpolesteve (2013-12-11 00:30:43+00:00)
Title: Adds computed property for slicing an array

In our app there are several places we display only a subset of items on screen so we are not overwhelming the user. `Ember.computed.sort` and `Ember.computed.filter` do a lot of the heavy lifting but it would also be helpful to have the computed property in this PR