What are type classes in Haskell?
Type classes in Haskell are a way to define a set of functions that can operate on different types. They allow for polymorphism.
Can you give me an example of a type class?
Sure! The Eq
type class is used for types that support equality testing. It defines the ==
and /=
operators.
How do I create my own type class?
To create a type class, you use the class
keyword followed by the class name and the function signatures that types must implement.
What is the difference between type classes and interfaces in other languages?
Type classes in Haskell are more flexible than interfaces in languages like Java, as they allow for ad-hoc polymorphism.
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