Introduction
As a child, I played many games that were very similar—games like Super Mario Bros., Donkey Kong, The Lion King, and Aladdin. I could switch between them without much work; the learning ramp-up was quick. They all shared the same core mechanics: you move straight to the right, jump on platforms, and avoid being hit by enemies. They were all 2D platform games.
Switching between programming languages is similar. In my work, I have needed to switch between Ruby, JavaScript, and CoffeeScript, and between Java, Python, and Objective-C. It wasn’t too painful to do. All these languages are very different, but in some ways they are similar. I could use object-oriented programming with all of them. When I learned how to create objects and ...
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