Is there a way to have map return no value (compared with null value) into the output array if a given condition on the input scalar is not met?
Well, yes. I think $foo eq $bar ? $_ : () would do it (among other possibilities). But why not just use grep instead?
my @grepped = grep {$_->{'username'} eq $cgi->param('username')} 
                @{ %{$xml}->{'user'} };

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In reply to Re: foreach/map equivalency by ChemBoy
in thread foreach/map equivalency by rob_au

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