[Haskell-beginners] print all days of calendar

kane96 at gmx.de kane96 at gmx.de
Mon Dec 21 14:47:38 EST 2009


-------- Original-Nachricht --------
> Datum: Mon, 21 Dec 2009 19:54:09 +0100
> Von: Daniel Fischer <daniel.is.fischer at web.de>
> An: beginners at haskell.org
> CC: kane96 at gmx.de
> Betreff: Re: [Haskell-beginners] print all days of calendar

> Am Montag 21 Dezember 2009 17:39:49 schrieb kane96 at gmx.de:
> > > Prelude> :t filter
> > > filter :: (a -> Bool) -> [a] -> [a]
> > >
> > > So we need a predicate on the type of list elements.
> > >
> > > getMonth month cal = filter predicate cal
> > >       where
> > >         predicate (d,m,y) = ??
> >
> > it has to match the given month and year. But don't know how to define
> it.
> 
> Does (==) ring a few bells?

not really...
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