I don't seem to be answering as fast as you're asking.

If the explanation is that map is being called in scalar context, then the following is unexpected:

sub lowercase {
    my @out = map { lc } @_ ;
    return @out ;
    }

$name = lowercase( 'Jim', "Jeff" ) ;
## $name == 2

[download]

Even though map is called in an array context, the results don't change.

Very clever solution, yours. Clever, but not elegant.

In reply to Re^2: wantarray alternative by tqisjim
in thread wantarray alternative by tqisjim

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