Browser Diet - `jQuery.each` vs. `for` loop

JavaScript performance comparison

Test case created by Zeno Rocha on 5th March 2013

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js">
</script>
<script>
  var a = $('*').get(),
      e;
</script>

Warning! For accurate results, please disable Firebug before running the tests. (Why?)

Java applet disabled.

Testing in unknown unknown
Test		Ops/sec
`jQuery.each`	`$.each(a, function() { e = this; })`	pending…
`for` loop	`for (var i = 0, len = a.length; i < len; i++) { e = a[i]; }`	pending…
`for` without caching	`for (var i = 0; i < a.length; i++) { e = a[i]; }`	pending…
alternative `for` loop	`for (var i in a) { e = a[i]; }`	pending…
reverse `for`	`for (var i = a.length; i--;) { e = a[i]; }`	pending…
`while` reverse	`var i = a.length; while(i){ e = a[--i] }`	pending…

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