%person = ( name=>'buffy',job=>'vampire slayer'   );

    sub describe {
      my %person = @_;
      print "$person{name} is a $person{job}"
    }

    describe(%person);

    # result: 'buffy is a vampire slayer'


##</code><code>##


    sub describe {
      my %person = @_;
      print "$person{name} is a $person{job}"
    }

    describe(  {name=>'buffy',job=>'vampire slayer' }  );

    # result: ' is a '



##</code><code>##

($_='kkvvttuubbooppuuiiffssqqffssmmiibbddllffss')
 =~y~b-v~a-z~s;                             print