jQuery extend pass cached window

JavaScript performance comparison

Test case created by Josh

Preparation code

<script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
 
<script>
Benchmark.prototype.setup = function() {
    var options = {
      $window: $(window),
      $document: $(document)
    };
};
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
Extend pass cached
$.extend({
  $window: $(window),
  $document: $(document)
}, options);
pending…
Extend pass nothing
$.extend({
  $window: $(window),
  $document: $(document)
}, {});
pending…

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