Slightly more idiomatic might be `next unless $line`.
On Tue, May 15, 2018 at 7:39 PM ToddAndMargo <toddandma...@zoho.com> wrote:
> On 05/15/2018 04:34 PM, ToddAndMargo wrote:
> > On 05/15/2018 03:49 PM, Larry Wall wrote:
> >> On Tue, May 15, 2018 at 03:31:07PM -0700, ToddAndMargo wrote:
> >> : Hi All,
> >> :
> >> : This seems like a trivial question, but I really adore
> >> : the "for" loops. Is there a way to do the backwards?
> >> : In other words, start at the end of the array and loop
> >> : to the beginning? Does the "next" and "last" work in
> >> : this?
> >>
> >> Just use the reverse method:
> >>
> >> > my @foo = <a b c>;
> >> [a b c]
> >> > for @foo.reverse { .say }
> >> c
> >> b
> >> a
> >>
> >> or (as in Perl 5) the reverse function:
> >>
> >> > for reverse @foo { .say }
> >> c
> >> b
> >> a
> >>
> >> and yes, "next" and "last" work for those loops too, since they are
> >> controlled by the "for", not by the expression you feed to the "for".
> >>
> >> Larry
> >>
> >
> > Hi Larry,
> >
> > Awesome. I just copied your response down into my "loops"
> > keeper file.
> >
> > I use loops and loops with split "a lot".
> >
> > Thank you!
> >
> > -T
> >
>
> It is annoying when I read something back from Linux
> and they use a <nil> at the start and stop of a
> string (the Secondary Clipboard for instance).
>
> But I just use `if not $line {next}` to jump over it.
>
> -T
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Computers are like air conditioners.
> They malfunction when you open windows
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
