jQuery .data() vs. Object.property vs. Array

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="myDiv"></div>
<script>
  var myDiv = $('#myDiv');
  myDiv.data('x', 1)
      .data('y', 2)
      .data('z', 3);
 
  var myObj = {};
  myObj.x = 1;
  myObj.y = 2;
  myObj.z = 3;
 
  var xArray = [1];
  var yArray = [2];
  var zArray = [3];
</script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
jQuery.data()
var x = myDiv.data('x');
var y = myDiv.data('y');
var z = myDiv.data('z');
pending…
Object.property
var x = myObj.x;
var y = myObj.y;
var z = myObj.z;
pending…
Array
var x = xArray[0];
var y = yArray[0];
var z = zArray[0];
pending…

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