Help for this page

Select Code to Download


  1. or download this
    while ( ($key, $value) = each %hash ) {
      ...
    }
    
  2. or download this
    >perl -E"say scalar(  ($x,$y)=()  )"
    0
    ...
    
    >perl -E"say scalar(  ($x,$y)=(undef,undef,undef)  )"
    3