What are the differences between Haskell type classes?

What are the differences between Haskell type classes?

Haskell type classes are a way to define functions that can operate on different types. The main differences lie in how they handle polymorphism, constraints, and instances. Would you like to know more about a specific aspect?

Can you explain polymorphism in type classes?

Sure! Polymorphism in Haskell allows functions to operate on different types without needing to know the specifics of those types. This is achieved through type classes, which define a set of functions that can be implemented for various types.

What are some common type classes in Haskell?

Some common type classes in Haskell include 'Eq' for equality, 'Ord' for ordering, and 'Show' for converting values to strings. Each of these serves a different purpose in type manipulation.

How do I create my own type class?

To create your own type class, you define it using the 'class' keyword, specifying the functions that types must implement. For example:

class MyClass a where
    myFunction :: a -> String

This defines a type class 'MyClass' with a function 'myFunction'.