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  1. or download this
    my @array = map { defined $_ ? $_ : '' } @array[0..$last];
    
  2. or download this
    use Finance::YahooQuote;
    
    ...
    my $float = $quote->[1] ne "" ? join( ",", @$quote ) : "n/a";
        
    print "$symbol Float Shares: $float";