Aaron Patterson gave this talk about methods and method calls, which he concludes he failed at.
I do however feel that you can take away some key aspects of the Ruby language as well as how to do measurements.
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I finally learned what the singleton_class object was for from this talk. It seemed like an unusual thing on every object without a reason before. Now I see it’s used when modifications are done to a singleton instance and how that’s detrimental to performance.
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