cyberglot/list-plus-one.hs

Created January 1, 2015 18:26

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FP in Haskell - Readability II

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list-plus-one.hs

	plus1 :: [Int] -> [Int]
	plus1 [] = []
	plus1 (x:xs) = x + 1 : plus1 xs

	-- plus1 [0,1,2,3]
	-- > [1,2,3,4]

Zylviij commented Aug 25, 2016 •

edited

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Just to show off how succinct functional programming can be...
You could even show off how cool the type system can be!

-- plus1 :: Enum a => [a] -> [a]
plus1 :: [Int] -> [Int]
plus1 = map succ

-- plus1 [0, 1, 2, 3]
-- > [1, 2, 3, 4]

But I'm sure that you made the right choice in choosing a clear and straightforward example for the article.

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