SuperLuigi SuperLuigi - 5 months ago 22
Javascript Question

How do I implement JQuery.noConflict() ?

I am using both javascript and jquery code on the same html page. For some reason, the jQuery library is stopping my native javascript code from working properly.

I found this page: jQuery No Conflict that says you can use a jquery.noConflict to release $ back to javascript. However, I'm not sure how to do this?

Specifically, I'm not sure how to implement this correctly? Where does the the Jquery code go, where does the JS code go?

My code is below:

<script type="text/javascript">
$.noConflict();
// Code that uses other library's $ can follow here.
</script>

Answer

jQuery.noConflict will reset the $ variable so it's no longer an alias of jQuery. Aside from just calling it once, there's not much else you really need to do. Though, you can create your own alias with the return value, if you'd like:

var jq = jQuery.noConflict();

And, generally, you want to do this right after including jQuery and any plugins:

<script type="text/javascript" src="/path/to/jquery.js"></script>
<script type="text/javascript" src="/path/to/jquery-plugin.js"></script>
<script type="text/javascript">
  jQuery.noConflict();
  // Code that uses other library's $ can follow here.
</script>
<script type="text/javascript" src="/path/to/prototype.js"></script>

You can also go one step further and free up jQuery with noConflict(true). Though, if you take this route, you'll definitely want an alias as neither $ nor jQuery will probably be what you want:

var jq = jQuery.noConflict(true);

I think this last option is mostly used for mixing versions of jQuery, particularly for out-dated plugins when you want to update jQuery itself:

<script type="text/javascript" src="jquery-1.4.4.js"></script>
<script type="text/javascript" src="jquery-older-plugin.js"></script>
<script type="text/javascript">
    var jq144 = jQuery.noConflict(true);
</script>
<script type="text/javascript" src="jquery-1.6.4.js"></script>
<script type="text/javascript" src="jquery-newer-plugin.js"></script>
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