What is the difference between monads and functors?
Monads and functors are both concepts in functional programming. A functor is a type that can be mapped over, while a monad is a type that can be chained together. Essentially, all monads are functors, but not all functors are monads.
Can you give me an example of a functor?
Sure! In Haskell, the Maybe
type is a functor. You can use the fmap
function to apply a function to the value inside a Maybe
, if it exists.
What about an example of a monad?
An example of a monad is the IO
type in Haskell. It allows you to perform input/output operations while maintaining functional purity.
How do they relate to each other?
Functors provide a way to apply functions to wrapped values, while monads extend this by allowing for function chaining and handling of side effects.
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