Map Functions

Map Functions are a language feature.

Map is the name of a higher-order function that applies a given function to each element of a functor, e.g. a list, returning a list of results in the same order.

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Languages with Map Functions include JavaScript, Haskell

Example from JavaScript:

[1,2.1].map(Math.round)

Example from Haskell:

class Functor f where fmap :: (a -> b) -> f a -> f b (<$) :: a -> f b -> f a

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