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Line 9: Line 9:
 
<haskell>
 
<haskell>
 
repli = flip $ concatMap . replicate
 
repli = flip $ concatMap . replicate
  +
</haskell>
  +
  +
alternatively, without using the <hask>replicate</hask> function:
  +
<haskell>
  +
repli :: [a] -> Int -> [a]
  +
repli xs n = concatMap (take n . repeat) xs
 
</haskell>
 
</haskell>

Revision as of 22:28, 20 December 2010

(**) Replicate the elements of a list a given number of times.

repli :: [a] -> Int -> [a]
repli xs n = concatMap (replicate n) xs

or, in Pointfree style:

repli = flip $ concatMap . replicate
alternatively, without using the
replicate
function:
repli :: [a] -> Int -> [a]
repli xs n = concatMap (take n . repeat) xs