Is a key defined in a hash : key « Hash « Perl






  1. Perl
  2. Hash
  3. key

Is a key defined in a hash

   

$hash{fruit} = apple;
$hash{sandwich} = hamburger;
$hash{drink} = bubbly;

if (defined($hash{'vegetable'})) {
    print "Element is defined.";
} else {
    print "Element is not defined.";
}








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