code: function count(arr) {
                  var c = 0;
                  for (var i = 0; i < arr.length; i++) {
                      c += creator[arr[i] & 0xff] + creator[(arr[i] >> 8) & 0xff] + creator[(arr[i] >> 16) & 0xff] + creator[(arr[i] >> 24) & 0xff];
                  }
                  return c;
              }
docs: Count the number of true values in an array
  @param {Array} arr
  @return {number}