If you need to cache a certain section of a page instead of the entire page, fragment caching is the way to go. Learn how caching is stored, how to create auto expiring caches, and more. (9 minutes)

There are a variety of ways to pass variables from a Rails application to JavaScript. Here I show three techniques: a script tag, a data attribute, and the Gon gem. (6 minutes)

With HTTP response headers you can the cache in the user's browser and proxies. Etags, Last-Modified, Cache-Control and Rack::Cache are all covered here (15 minutes)

Forms often follow a similar pattern with a lot of repetition. Learn how to clean up form views and remove duplication with the help of form builders. (12 minutes)

A many-to-many association can be edited through check boxes in a form. Here I show how to do this with a has_many through association complete with clickable labels. (6 minutes)

Edit an attribute in-place without leaving a page using the Best In Place gem. Learn how to add validations and support for various field types. (8 minutes)

Do you need to dynamically change one select menu based on the value of another? Here I show how to filter states/provinces by a selected country using grouped options and a dab of CoffeeScript. (7 minutes)

It is often best to use a GET request when submitting a search form, however if it is an advanced search form with a lot of fields then this may not be ideal. Here I show how to create a search resource to handle this. (6 minutes)

Sometimes logic needs to be shared between the server-side (Ruby) and the client-side (JavaScript). Here I show how to run JavaScript directly in Ruby through ExecJS and therubyracer. (14 minutes)

Mercury allows you to edit a section of HTML directly in the web browser through a WYSIWYG editor. Here I show how to integrate Mercury into a Rails app and save the changes back to the database. (11 minutes)