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tail Does not return a Maybe #618

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s0kil opened this issue Dec 22, 2020 · 0 comments
Closed

tail Does not return a Maybe #618

s0kil opened this issue Dec 22, 2020 · 0 comments

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@s0kil
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s0kil commented Dec 22, 2020

head :: [a] -> Maybe a returns a Maybe a type, while tail :: [a] -> [a] throws an runtime error if the list is empty, when it should also return a Maybe [a].

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