Answer by dfeuer for Implementation of null function
I'll add on to what leftaroundabout said. This is not really a potential concern for the list type, but in general, data types sometimes get modified. If you have an ill-conceiveddata FavoriteFood =...
View ArticleAnswer by leftaroundabout for Implementation of null function
You can't just turn the clauses around with your solution:mNull' :: [a] -> BoolmNull' _ = FalsemNull' [] = Truethis will always yield False, even if you pass an empty list. Because the runtime...
View ArticleAnswer by shree.pat18 for Implementation of null function
Because _ literally means anything apart from explicitly specified patterns. When you specify (_:_) it means anything which can be represented as a list containing at least 1 element, without bothering...
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I have to learn Haskell for university and therefor I'm using learnyouahaskell.com for the beginning.I always used imperative languages so I decided to practice Haskell by coding a lot more than I...
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