In this video I fix the interface of the Rpn calculator. I test drive the changes. I though it was more important to improve the API first and then rid of the duplication.+ More details
This is the first in a video series demonstrating TDD and Objective C using XCode 3.x. In this video we create a new iPhone project, add a unit test project and also a static library for the iPhone…+ More details
The last video left the production code with a lot of room for improvement. In this video I remove feature envy by extracting a new class.+ More details
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