ivar Decorations

One of the things I did in the process of cleaning up my code was change the name of my instance variables (ivar). I was inspired by an article on the Big Nerd Ranch Weblog. I won’t repeat the whole article here, but the basic idea is that instance variables and properties in Objective-C have different behavior, especially with regards to memory management. Following a naming convention for instance variables gives a reminder that you aren’t dealing with a property. I adopted the convention in the article, and gave each of my instance variables a leading underscore. As an aside, XCode has nice refactoring tools to make variable naming easy.

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