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(Copied solution from 99 questions/1 to 10)
 
Line 9: Line 9:
   
 
myLast'' = head . reverse
 
myLast'' = head . reverse
  +
  +
myLast''' xs = xs !! (length xs - 1)
 
</haskell>
 
</haskell>
   

Revision as of 10:27, 29 March 2011

(*) Find the last element of a list.

myLast :: [a] -> a
myLast [x] = x
myLast (_:xs) = myLast xs
 
myLast' = foldr1 (const id)
 
myLast'' = head . reverse
 
myLast''' xs = xs !! (length xs - 1)
The
Prelude
also provides the function
last
.