What are some examples of polymorphism in Haskell?
Polymorphism in Haskell allows functions to operate on different types. A common example is the use of type classes.
Can you explain what a type class is?
Sure! A type class defines a set of functions that can be implemented by different types. For instance, the 'Eq' type class allows for equality checks.
What about polymorphic functions?
Polymorphic functions can take arguments of any type. For example, the 'length' function works on lists of any type.
Can you give me a code example?
Certainly! Here's a simple example: length :: [a] -> Int
where a
can be any type, making 'length' polymorphic.
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