It makes it possible to write
    push @{ $at_line{$string} }, $line_number;

[download]

instead of 

    $at_line{$string} = [] unless exists $at_line{$string};
    push @{ $at_line{$string} }, $line_number;

[download]
لսႽ† ᥲᥒ⚪⟊Ⴙᘓᖇ Ꮅᘓᖇ⎱ Ⴙᥲ𝇋ƙᘓᖇ

In reply to Re: Autovivification in perl by choroba
in thread Autovivification in perl by rammohan

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