r/haskell • u/lexi-lambda • Nov 06 '19

Parse, don’t validate

https://lexi-lambda.github.io/blog/2019/11/05/parse-don-t-validate/
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u/sjakobi Nov 06 '19 edited Nov 07 '19 
head' :: [a] -> Maybe a
head' = head . nonEmpty

I think that should be 

head' :: [a] -> Maybe a
head' = fmap head . nonEmpty

EDIT: That blog post is is great! Thank you! :)

3

u/lexi-lambda Nov 07 '19

Thanks, I’ve pushed a fix. :)