On Tuesday 28 Sep 2004 22:11, John W. Krahn wrote:
> Gavin Henry wrote:
> > By the way, my program now works great thanks to your sub advice. I still
> > have some cleaning to do, like my resize sub abd incorporating file tests
> > etc.
> >
> > You can see how bad my program is at:
> >
> > http://www.perl.me.uk
> >
> > It's called ebaypics
> >
> > Advice from you in a new thread, would be very appreciated.
>
> Don't put quotes around variables.
>
> Found in /usr/lib/perl5/5.8.2/pod/perlfaq4.pod
> What's wrong with always quoting "$vars"?
>
> perldoc perldata
Thanks I will update with your comments.
>
> Don't use '&' with subroutine calls.
>
> Found in /usr/lib/perl5/5.8.2/pod/perlfaq7.pod
> What's the difference between calling a function as &foo and foo()?
>
> perldoc perlsub
>
> > # Generate weblinks
> > sub links {
> > my ($url, @list) = @_;
> > my @return;
> > foreach (@list) {
> > push @return, "$url/$_\n";
> > }
> > return @return;
> > }
> >
> > # Put the generated weblinks from the subroutine links into an array
> > my @email_links = links($website, @thumbs);
>
> This is what map() was invented for:
>
> my @email_links = map "$website/$_\n", @thumbs;
>
>
>
> John
> --
> use Perl;
> program
> fulfillment
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