binary_floor.js

const ITERATIONS = 100000;
 
(function(){
  var start = new Date;
  for (var i=0; i<ITERATIONS; ++i) {
    Math.floor((i + ITERATIONS) / 2);
  }
  var end = new Date;
  print("Math.floor: "+ (end - start) +"ms");
})();
 
(function(){
  var start = new Date;
  for (var i=0; i<ITERATIONS; ++i) {
    (i + ITERATIONS) >> 1;
  }
  var end = new Date;
  print("Binary >> : "+ (end - start) +"ms");
})();