Thank you.
On 15-08-2012 23:09, Twan van Laarhoven wrote:
On 15/08/12 17:01, José Lopes wrote:
someFn docs =
return concat `ap` (sequence $ intersperse (return "\n") (map loop
docs))
First of all, "return x `ap` y" = "x `fmap` y" or "x <$> y". fmap (or
its infix synonym (<$>)) is the answer here, you could write:
someFn docs = concat . intersperse "\n" <$> mapM loop docs
The function Data.List.intercalate is a compation of concat and
intersperse, so you could write:
someFn docs = intercalate "\n" <$> mapM loop docs
or, depending on your preference,
someFn = fmap (intercalate "\n") . mapM loop
Twan
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--
José António Branquinho de Oliveira Lopes
58612 - MEIC-A
Instituto Superior Técnico (IST), Universidade Técnica de Lisboa (UTL)
jose.lo...@ist.utl.pt
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