After having spent many years coding in C#, and after having spent equally as much time in the C# language culture, Ruby seemed like a lot of bad ideas and heresy. In fact, much of Ruby is heretical to a C# or VB.NET mono–culture, but the productivity gains demonstrated by Ruby on Rails teams remains an unavoidable elephant in the room. This presentation looks at C# code examples side by side with some equivalent Ruby code and shines a little light on what it means to have either "ceremony" and "essence". It challenges the claims of static typing's effect on tooling to deliver "developer productivity". And finally, some examples of Ruby meta programming are given to demonstrate direct solutions to programming problems that would require much ado with restrictions in C# that don't end up doing much more than reducing the efficiency of software development efforts.
This is a quick introduction to practicing Test Driven Development in Objective-C using XCode. The video starts by creating an empty project. It continues with the creation of a few tests, getting all the "plumbing" working and finishes with some simple refactoring examples.