In a recent blog post, we looked into the content_for view helper to render breadcrumbs. Once we got the feature working, it's time to refactor the feature to lower technical debt.

Working with an autocomplete can be very simple. However, things get complicated when you try to use HTML markup in the displayed results. Learn how to use HTML markup within your autocomplete results!

Extend your image upload functionality with JCrop. Learn to redirect the user to a crop page once they have uploaded their image and save versions of the cropped images.

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 the unobtrusive gem, Cocoon, learn how to handle multiple models in a single form with accepts_nested_attributes_for.