Adopting Design Patterns in Swift

Although the first publication of the Gang of Four's Design Patterns: Elements of Reusable Object-Oriented Software was released in October 1994, I have only been paying attention to design patterns for the last 14 years. Like most experienced developers, when I first started reading about design patterns, I recognized a lot of the patterns because I had already been using them without realizing what they were. I would have to say that since I first read about design patterns, I have not written a serious application without using at least one of them. I will tell you that I am definitely not a design pattern zealot, and if I get into a conversation about design patterns, there are usually only a couple of them that I can name without having to look them up. But one thing that I do remember is the concepts behind the major patterns and the problems they are designed to solve. This way, when I encounter one of these problems, I can look...