The fastest loop with for loop in any programming language

After performing this test with most modern browsers...

http://jsperf.com/caching-array-length/4

Currently, the fastest form of loop (and in my opinion the most syntactically obvious).

a standard for loop with length caching

for (var i = 0, len = myArray.length; i < len; i++) {

}

I would say this is definitely a case where I applaud JavaScript engine developers. A run time should be optimized for clarity, not cleverness.