Chapter 17. Adopting Design Patterns in Swift

While the first publication of the Gang of Four's Design Patterns: Elements of Reusable Object-Oriented Software was released in October of 1994, I have only been paying attention to design patterns for nine or ten 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 in the past nine or ten years since I first read about design patterns, I have not written a serious application without using at least one of the Gang of Four's design patterns. 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...