Traversable.mapM_ missing

Andreas Abel andreas.abel at
Sat May 18 23:21:53 CEST 2013

On some haskell list I read that for lists,

   mapM_ f l

is more space-efficient that just

   void $ mapM f l

Any reason why mapM_ is missing from Data.Traversable?


Andreas Abel  <><      Du bist der geliebte Mensch.

Theoretical Computer Science, University of Munich
Oettingenstr. 67, D-80538 Munich, GERMANY

andreas.abel at

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