What is the fastest way to sum up an array in JavaScript? A quick search turns over a few different methods, but I would like a native solution if possible. This will run under SpiderMonkey.

Thinking very inside-the-box I have been using:

var count = 0;

for(var i = 0; i < array.length; i++)

{

    count = count + array[i];

}

I'm sure there is a better way then straight iteration.