If statements inside or outside loops?

Question

Is it better if I do this:

foreach my $item ( @array ) {
   if ( $bool ) {
     .. code ..
   }
   else {
     .. code ..
   }
}

or

<         


        

Answer 1

If you're optimizing for speed, the second (foreach loops inside the if branches) should be faster, since you won't be doing the test in each loop iteration.