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Re: Explaining Autovivication

by throop (Chaplain)
on Jun 12, 2008 at 04:20 UTC ( #691586=note: print w/replies, xml ) Need Help??

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  1. or download this
    $quick->{brown}->{fox} ->{$jumped} = 1 / $Lazy_dog;
    
  2. or download this
    $stateCityPopulation =
     {Illinois => {Springfield => 116482},
      Massachusets => {Springfield => 154082},
      Missouri   => {Springfield => 150797}}};
    
  3. or download this
     
    foreach my $state (qw(Illinois Massachusets Ohio Missouri)){
      my $pop = $stateCityPopulation->{$state}->{Springfield} || next;
      $springfielders += $pop}
    
  4. or download this
    $pop = ($stateCityPopulation->{$state} && 
            $stateCityPopulation->{$state}->{Springfield}) || 
            next;
    

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