Hi Monks,

I need to assign $string = 'some values' based on the length of the array. If length of the array equals to '-1' I want to assign $string = 'True', otherwise I expect $string = 'False'.

I got $string = 'False' even though the array values is equals to '-1'. But i am add a line to test the array value, I got the output as 'True'. I am confused, why the code's gives the mismatch output.

Below I placed the code. Could someone please explain on this.

Thanks
Mani Muthu

use strict;
use warnings;

my @arr;
my $string = 'Initial';

($#arr == -1 ) ? print "True" : print "False";
($#arr == -1 ) ? $string = 'True' : $string = 'False';

print "\n\$string  = $string";
print "\n\$#arr    = $#arr";


=Output
True
$string  = False
$#arr    = -1
=cut

[download]

Note : I am using perl 5.8.9 in Windows

In reply to Unexpected Output by k_manimuthu

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.