"...This allows things like..."

Yes and no:

#!/usr/bin/env perl

use strict;
use warnings;
use feature qw(say);;

my $foo = 'Bar':
my $foo = $foo x 2;

say $foo;

__END__

[download]

Perl allows it generously but then it complains about  "my" variable $foo masks earlier declaration in same scope at ./foo.pl line 8..

Iznogoud. But in a block it works flawless - no surprise:

KARL : {
    my $foo = $foo x 2;
    say $foo;
}

[download]

But why the effort? You could say $foo x= 2; which results in BarBar. If this is what you wanted. What i assume.

Best regards, Karl

«The Crux of the Biscuit is the Apostrophe»

perl -MCrypt::CBC -E 'say Crypt::CBC->new(-key=>'kgb',-cipher=>"Blowfish")->decrypt_hex($ENV{KARL});'Help

In reply to Re^3: open(), go away with bad way, or fail with the right way? by karlgoethebier
in thread open(), go away with bad way, or fail with the right way? by hda

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.