Improved .get() for negative Indices

JavaScript performance comparison

Test case created by Anton M.

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.js"></script>
<div id="foo" style="display:none"><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p></div>
<script>
  var $sel = $("#foo p");
  
  (function($) {
   $.fn.myGet = function(num) {
    return num == null ?
    // Return a 'clean' array
    this.toArray() :
    // Return just the object
    (num < 0 ? this[this.length + num] : this[num]);
   }
  })(jQuery);
</script>
    

Preparation code output

<div id="foo" style="display:none"><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p><p>foo</p></div>

Test runner

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

Java applet disabled.

Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
orig
$sel.get(-1);
pending…
new
$sel.myGet(-1);
pending…

You can edit these tests or add even more tests to this page by appending /edit to the URL.

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