Northeast Scala Symposium 2012

Beginner-friendly talk introducing the concept of “typeclasses”. What are these “typeclass” things Scala people are always talking about? Where did they come from? How are they expressed in Scala? Are they in the Scala standard library? When might I want to use them instead of other kinds of polymorphism such as inheritance and overloading? (reprise of talk previously delivered at Boston Scala)

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