JavaScript Loop Speed Tests

gistfile1.js

/* JavaScript Loop Speed Tests.
 * 100,000,000 iterations, average of 10 runs.
 * Run on Chromium 6.0.472.53
 */

/* Basic for-loop
 * 1056.9 ms
 */
for (var i=0; i < count; i++) {
  1+1;
}

/* JSLint for-loop
 * 1322.6 ms
 */
for (var i=0; i < count; i += 1) {
  1+1;
}

/* Reverse loop
 * 1097.6 ms
 */
while (count--) {
  1+1;
}

/* Reverse loop, execute once
 * 1123.3 ms
 */
do {
  1+1;
} while (count--);

/* While loop that imitates a for-loop
 * 1368.9 ms
 */
var i=0;
while (i < count) {
  1+1;
  i++;
}