my @nums= ( 0 .. 10 );
                                                                                
my @odds= map { $_ % 2 ? $_ : () } @nums;
                                                                                
print "@odds";

__END__
1 3 5 7 9

##</code><code>##

my @nums= ( 0 .. 10 );
                                                                                
my @odds;
                                                                                
foreach( @nums ) {
  next unless $_ % 2;
  push @odds => $_;
}
                                                                                
print "@odds";

##</code><code>##

my @nums= ( 0 .. 10 );
                                                                                
my @odds= grep { $_ % 2 } @nums;
                                                                                
print "@odds";