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Re: foreach only for a section of a list

by brx (Pilgrim)
on May 04, 2012 at 15:19 UTC ( [id://968940]=note: print w/replies, xml ) Need Help??


in reply to foreach only for a section of a list

Another way, with pop and push:

my $last = pop @somewords;
foreach my $core (@somewords) {
  print " $core;\n"
}
push @somewords,$last;

[download]

Update: it's useless to keep $last. See the improvement by johngg, in reply.

Replies are listed 'Best First'.
Re^2: foreach only for a section of a list
by johngg (Canon) on May 05, 2012 at 12:13 UTC

    You could use a do block to scope the existence of $last so that it isn't left lying around.

    knoppix@Microknoppix:~$ perl -Mstrict -wE '
> my @arr = qw{ one two three four };
> push @arr, do { my $last = pop @arr; say for @arr; $last };
> say qq{@arr};'
one
two
three
one two three four
knoppix@Microknoppix:~$

    [download]

    Cheers,

    JohnGG

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