On Mon, 20 Feb 2012 20:14:13 +0100
"Christian Walde" <walde.christ...@googlemail.com> wrote:
> On Mon, 20 Feb 2012 20:08:31 +0100, Manfred Lotz
> <manfred.l...@arcor.de> wrote:
>
> > Hi there,
> >
> > I have a hash table where I want to do some action for each value in
> > the hash table.
> >
> >
> >
> > Among other possibilities I could do like this:
> > map { some_action($_) } values %ht;
> >
> > where let us say:
> >
> > sub some_action {
> > ...
> >
> > return;
> > }
> >
> > I like it because it is really short.
> >
> >
> > Questions:
> > 1. Is there another perhaps better one liner to do it?
>
> You can do either of these:
>
> map some_action($_), values %ht;
>
I found somewhere: Don't use map or grep in a void context. That is why
I answered my own question saying this is bad.
> some_action($_) for values %ht;
>
Interesting, there are many ways to do things in Perl. :-)
--
Thanks,
Manfred
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