This vs global

JavaScript performance comparison

Revision 2 of this test case created

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<div id="xyz">1123</div>
<script>
Benchmark.prototype.teardown = function() {
    JS = {
     val: function () {
       this.x || (this.x = $("#xyz").val());
       return this.x;
     }
    }
};
</script>

Preparation code output

1123

Test runner

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Testing in unknown unknown
Test Ops/sec
This
(function() {
  return $("#xyz").val();
})();
pending…
Global
(function() {
  return JS.val();
})();
pending…

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