rickharrison/validate.js — pull request #90 by brenopolanski (2013-12-10 14:11:15+00:00)
Title: A faster way to write a for loop. It caches the array size, so we don't need to recalculate the size at every iteration.

Example:

for (i = 0, len = arr.length; i < len; i++) {
// array length is calculated only 1 time and then stored
}