foreach/for/while is uncool? Anyway, there's always the trusty goto (adjust regexp to taste): 
my $i = 0;
again:
$array[$i] *= 2 unless $array[$i] =~ /[^0-9]/;
goto again if ++$i <= $#array;

[download]
Or as a bare block: 
my $i = 0;
{$array[$i] *= 2 unless $array[$i] =~ /[^0-9]/;
 redo if ++$i <= $#array;}

[download]
But I prefer a for: 
/[^0-9]/ or $_ *= 2 for @array;

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Why would that not be cool enough?

In reply to Re: cool way of manipulating array elements by JavaFan
in thread cool way of manipulating array elements by pashanoid

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