JQuery is a Javascript framework for interacting with the DOM, doing AJAX requests and lots of new modern things.

  1. Integration Testing with EmberJS and JQuery
  2. Multiple JQuery versions with EmberJS

Checking JQuery version

$.fn.query will return the current runtime JQuery version.

Loading multiple JQuery versions in a page

From http://forum.jquery.com/topic/multiple-versions-of-jquery-on-the-same-page, you can use jQuery.noConflict() to load multiple versions:

<script src='jquery-1.3.2.js'></script>
    var jq132 = jQuery.noConflict();
    <script src='jquery-1.4.2.js'></script>
    var jq142 = jQuery.noConflict();