Re: [Haskell-cafe] Re: [Haskell] (.) . (.)

brianh:

[moved to cafe] Dominic Steinitz wrote:

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Taral wrote:

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On 5/28/06, Dominic Steinitz wrote:

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Is this defined in some library? Thanks, Dominic.

Don't think so. I use:

\a b -> f (g a b)

Taral,

Thanks. What prompted this question is that I find myself writing things like:

foo = ((.).(.)) concat intersperse

Hi Dominic - I hope it's ok for me to ask this question and I'm absolutely burning with curiosity to find out the answer...

How did you know to write ((.).(.)) instead of (\f g a b -> f (g a b)) ?

If you play with the @pointless plugin in lambdabot http://haskell.org/haskellwiki/Pointfree it becomes almost second nature with practice :) -- Don