Design Patterns in Ruby

Chapter 1. Building Better Programs with Patterns

It’s funny, but design patterns always remind me of a certain grocery store. You see, my very first steady job was a part-time gig that I landed in high school. For a couple of hours every weekday and all day on Saturday, I would help out at the local mom-and-pop grocery store. I stocked the shelves, swept the floor, and generally did whatever unskilled labor needed doing. At first, the goings-on at that little store were a complex blur of sights (I have never liked the look of raw liver), sounds (my boss had been a Marine Corps drill instructor and knew how to express himself for effect), and smells (better left to the imagination).

But the longer I worked at Conrad Market, the more all those ...