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A Maybe instance should have a `map` function (or equivalent)
Something wrapped in a maybe should have a .map() method, which takes a function that will be applied to x if that Maybe contains a Just x, or just pass along Nothing.
For example, in Haskell:
addOneOrNah :: Maybe Int -> Maybe Int
addOneOrNah maybeInt = fmap (+1) maybeInt
addOneOrNah Nothing
-- -> Nothing
addOneOrNah (Just 3)
-- -> Just 4Recommend Projects
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