[Haskell-beginners] where do i get wrong

[Bob Ippolito]

isLower is not in the Prelude (the automatically imported module built-in
functions). Here's the list of all functions in Prelude:
http://hackage.haskell.org/package/base/docs/Prelude.html

isLower is in another module. You can figure that out by searching for
"isLower" on Hoogle:
http://www.haskell.org/hoogle/

You can even find it by searching for it by type, which is useful if you
don't remember the precise name. Try searching for "Char -> Bool".

In other words, you'll need to import isLower from somewhere before you can
use it.



On Sun, Mar 2, 2014 at 10:45 AM, Roelof Wobben <r.wobben at home.nl> wrote:

> Hello,
>
> I try to selfstudy haskell by following the yet another haskell tutorial.
>
> Now I have the exercise where I have a string and have to convert it into
>  a list of Booleans based on lower cats letter using map.
>
> So i tried this
>
> x = "aBCde".islower:[]
>
> But I see this error : Not in Scope: 'isLower'.
>
> Where do I make my error.
>
> Do not give the answer otherwise I do not learn anything from it.
>
> Roelof
>
>
> ---
> Dit e-mailbericht bevat geen virussen en malware omdat avast!
> Antivirus-bescherming actief is.
> http://www.avast.com
>
> _______________________________________________
> Beginners mailing list
> Beginners at haskell.org
> http://www.haskell.org/mailman/listinfo/beginners
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/beginners/attachments/20140302/004e6192/attachment.html>