That was a well-written article that has a pattern that should work well for a lot of people. But I think it can be improved. One cool fact is that Javascript

That was a well-written article that has a pattern that should work well for a lot of people. But I think it can be improved. One cool fact is that Javascript has first class functions. This means you can bring a lot of development patterns from the functional realm into your web development. There is a trend of languages moving away from the concept of mutable state. The article does a good job with the first steps (by wrapping everything in its own function scope), but Javascript lets us go further. The article seems like it attempts to shoe-horn the concepts of classes and sub-type polymorphism into a language that has better options.