Re^4: Size of an Hash reference

in reply to Re^3: Size of an Hash reference
in thread Size of an Hash reference

Thanks a lot for your help,

i have one more doubt if i want to check the existence of an key in an hash reference

here is this i have tried

print Dumper \$returnvalue;
$VAR1 = \{
            ' WWN2' => ' 5678',
            ' WWN1' => ' 125689'
          };
my $string="WWN1";
if (exists $returnvalue->{$string})
[download]

to my surprise its returning false

Any clue why its happening, is my if condition correct or not

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Re^5: Size of an Hash reference by choroba (Cardinal) on Nov 11, 2013 at 16:27 UTC
The keys in the hash start with a space, $string does not. لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ	[reply]
Re^5: Size of an Hash reference by Laurent_R (Canon) on Nov 11, 2013 at 16:52 UTC
It's because your keys have a leading space. Edit: Oops, I had not seen that choroba had already answered. Sorry for the repetition.	[reply]

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