To tell if a given key name exists in a hash, you can use the exists operator. : exists « Hash « Perl






  1. Perl
  2. Hash
  3. exists

To tell if a given key name exists in a hash, you can use the exists operator.

    

#if ( exists($hash{$key} ) ) {
#  # ..
#}


$hash{"Name"} = "A";
$hash{"Address"} = "B";
$hash{"City"} = "C";

if ( exists($hash{"City"} ) ) {
  print 'exists';
}








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