The DataTables Javascript library creates a powerful display of your application's data. Some of the features include pagination, server side processing, sorting and search.

Using Bootstrap in your application has become much more simple. Also learn to create some helper methods to make working with Bootstrap much easier.

Mountable Engines are a great way to extract code into its own namespace and allow the code to be reused in other applications. Other popular gems that are mountable engines are Devise and Doorkeeper.

Chosen is a jQuery plugin that makes long, unwieldy select boxes much more user-friendly. Learn how to use Chosen in a few different ways in this episode; Rails form builder and Simple Form.

Using Interact.js to create draggable and droppable items in our view, we can use AJAX callbacks on events to interact with our Ruby on Rails application. Also, learn how to use Ruby Assets to manage our Javascript Libraries.