Hi Guys,
Why does a Perl expression acting on an empty nested hash element create parents for the element eg:
#!/usr/bin/perl -w
use strict;
use warnings;
my %a;
my $a = scalar keys %{a};
print $a,"\n";
if (not exists $a{a}{a}{a}){
$a = scalar keys %{a};
print $a,"\n";
}
print "End\n";
prints:
0
1
End
not
0
0
End
And is the only way to avoid this, to check the higher levels of the hash first?
Regards
Steve
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