Hi Monks,
use Data::Dumper;
$x = {};
1 if ( exists $x->{W} ) ;
1 if ( defined $x->{X} ) ;
1 if ( $x->{Y} ) ;
1 if ( exists $x->{Y}{X} ) ;
1 if ( defined $x->{Z}{A} );
print Dumper $x;
Result : $VAR1 = {
'Z' => {},
'Y' => {}
};
What I don't want is Z, Y create by itself, when I try to check if some keys from inner are existed or not. Can I do that ? Hopefully this won't be the only solution
if ( $x->{Y} ) {
if ( $x->{Y}{Z} ) {
1 if ( $x->{Y}{Z}{A} ) ;
}
} ; # $VAR={};
Any clues? Thank you very much!
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