[Haskell-beginners] fmap fmap

[Jason Dusek]

2009/08/04 Michael P Mossey <mpm at alumni.caltech.edu>:
> fmap (fmap (*2)) xs

  Not exactly what you asked for:

    fmap (*2) `fmap` xs

  Operator sections -- the `(*2)` -- require parens. Using
  backticks helps you clean up parenthesis.

--
Jason Dusek