njames/forloops.js

## forloops.js
for (var i = 0, m = array.length; i < m; i++){ /// ... }
/// this pattern reduces the cost of counting the array or other object more than once
	for (var i = 0, m = array.length; i < m; i++){ /// ... }
	/// this pattern reduces the cost of counting the array or other object more than once