Perl: is there a simple way to validate a hash of hash element exist and defined?
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by WL
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Published on 2010-04-27T17:34:53Z
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2010/04/27
17:43 UTC
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I need to validate a Perl hash of hash element such as $Table{$key1}{$key2} exist and defined. Here is what i do. (i have no idea key1 even exist)
if
((defined $Table{$key1}) &&
(exists $Table{$key1}) &&
(defined $Table{$key1}{$key2}) &&
(exists $Table{$key1}{$key2}))
{
#do whatever
}
Is there an easier and cleaner way to do it?
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