sub somefunc_for_scalars {
	my $answer = some_class->some_method();
	return defined($answer) ? $answer : ''; 
}

##</code><code>##

sub somefunc_for_arrays {
	my @answer = get_array2();
	return @answer; 
}

##</code><code>##

sub somefunc_for_arrays {
	my @answer = get_array2();
	if (!(scalar @answer)) { die 'get_array2() returned an empty array.' }.
	return @answer; 
}