程序代写CS代考 Java Haskell # More on type classes and instances
# More on type classes and instances In this section, we study in detail two important type classes: 1. The type class `Ord` for ordered types. 2. The type class `Num` for numeric types. We also study an example of an *instance declaration with constraints*: `instance Ord a => Ord [a]`. This instance tells us […]
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