99 questions/Solutions/4
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(Difference between revisions)
| Line 8: | Line 8: | ||
<haskell> | <haskell> | ||
| - | myLength :: [a] -> Int | + | myLength' :: [a] -> Int |
| - | myLength = foldr (\x n -> n + 1) 0 | + | myLength' = foldr (\x n -> n + 1) 0 |
</haskell> | </haskell> | ||
This is <hask>length</hask> in <hask>Prelude</hask>. | This is <hask>length</hask> in <hask>Prelude</hask>. | ||
Revision as of 07:19, 17 November 2010
(*) Find the number of elements of a list.
myLength :: [a] -> Int myLength [] = 0 myLength (_:xs) = 1 + myLength xs
myLength' :: [a] -> Int myLength' = foldr (\x n -> n + 1) 0
length
Prelude
