Check out a free preview of the full Building Web Apps (with React, Ampersand, ES6 and Webpack) course:
The "Collections and Mixins" Lesson is part of the full, Building Web Apps (with React, Ampersand, ES6 and Webpack) course featured in this preview video. Here's what you'd learn in this lesson:
Henrik introduces the Ampersand Collection module. A collection is an observable array. He creates a collection to store a list of repos for the current user. After that, Henrik demonstrates how to create a mixin that will make it easier to access the auth token.