What are functors in Haskell?
An example of an AI chatbot conversation about functors in Haskell programming.
What are functors in Haskell?
Functors in Haskell are a type class that allows you to apply a function over wrapped values, like lists or Maybe types.
Can you give me an example of a functor in Haskell?
Sure! The Maybe type is a functor. You can use fmap to apply a function to the value inside a Maybe, if it exists.
How does fmap work with functors?
fmap takes a function and a functor, applying the function to the value inside the functor, returning a new functor.
What are some other examples of functors in Haskell?
Other examples include lists, Either, and IO. Each can be used with fmap to apply functions to their contained values.
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