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Groups > comp.lang.haskell > #367

Re: List

From Mark Carroll <mtbc@bcs.org>
Newsgroups comp.lang.haskell
Subject Re: List
Date 2016-04-16 12:46 +0100
Organization none
Message-ID <87mvotkc7j.fsf@ixod.org> (permalink)
References <8a0b955e-17d4-42f1-bde0-c1ca5623ffe3@googlegroups.com> <8737qmvo4b.fsf@bsb.me.uk> <279ae91d-7b5e-47ae-b6ea-70811450239c@googlegroups.com> <76f6faf7-842d-4786-8a5b-545aed84a2d9@googlegroups.com>

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On 16 Apr 2016, pip7k wrote:

> I tried the following without success..
>
> isGood :: String -> Bool
> isGood (x:_) = x <= 'M'
> isGood _ = False
>
> myList = ["Apple","Fruit","Pears","Misc"] 
> aa = map (isGood) $ map (head) myList

Did you simply want,

	aa = map isGood myList

...?

-- Mark

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Thread

List pip7kids@gmail.com - 2016-04-15 08:23 -0700
  Re: List Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-04-15 17:21 +0100
    Re: List pip7k <philsivyer@googlemail.com> - 2016-04-16 03:28 -0700
      Re: List pip7k <philsivyer@googlemail.com> - 2016-04-16 03:57 -0700
        Re: List Mark Carroll <mtbc@bcs.org> - 2016-04-16 12:46 +0100
  Re: List philsivyer@googlemail.com - 2016-04-16 04:07 -0700

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