This episode will show you how to debug a rails app using the "debugger" gem: set a breakpoint, inspect variables and change the executed code at runtime. (7 minutes)

Here we take a look at two tools to aid us in development: Better Errors which makes it easier than ever to debug exceptions, and RailsPanel, a Chrome extension to see Rails requests. (8 minutes)

This episode will show you how to debug a rails app using ruby-debug: set a breakpoint, inspect variables, change the code and more. (8 minutes)

Pry is an alternative to IRB and sports many great features. Here I show how to integrate it into a Rails app, and how it can aid in debugging. (8 minutes)

Rails comes with three environments: development, test, and production, but it is easy to add your own. Here I show how to add a separate staging environment and how to start up Rails under this. (4 minutes)

It is incredibly easy to upgrade to Rails 3.1, but if you want to take advantage of the asset pipeline you will need to put in some extra effort. Have no fear because I walk you through each of the necessary steps in this episode. (8 minutes)

RJS and AJAX can be difficult to debug. Many times you don't get any error message in the browser. Learn different techniques for solving these tricky problems in this episode. (7 minutes)

Rails 3 sports a new routing interface. In this episode I show how to translate the old interface into the new one and show off a few new features. (13 minutes)

Here's five quick tips to use in views. Be sure to catch the end of the episode where I reveal an exciting contest! (9 minutes)

The stack trace can be a very useful tool when it comes to debugging. Learn the ins and outs of how the stack trace works in this episode. Note: I am using an older version of the Rails bundle here so it might be a little different than yours. The command in the newer version is called Install Plugin and requires you to type textmate_footnotes in the search. (4 minutes)