无法加载JavaScript。 尝试了我能想到的一切

Question

Swimwire.com is no longer loading JavaScript properly since I installed an update to its Social module, JomSocial. It's something to do with JomSocial, I'm certain, since on the homepage no JavaScript properly works (there's a blue bar along the top that should be clickable and contain the words 'Open Control Panel', but it doesn't load). Whereas if I visit a page not displaying JomSocial content the JavaScript will happily load.

I got some help with this yesterday but unfortuantely I'm still very stuck. I'm a novice at JavaScript and Safari throws me the error

TypeError: Result of expression '$' [undefined] is not a function. /modules/mod_rokslideshow/tmpl/slideshow.js:73TypeError: Result of expression '$' [undefined] is not a function. 2/media/system/js/mootools.js:54TypeError: Type error

I'm not too sure at all how to interpret this. I'm certain that something in JomSocial is causing a conflict but don't know really how to go about addressing this.

Jack

Answer 1

There are multiple libraries which define $ ; I know that jQuery and Prototype do this, not sure about MooTools (which I see in your error message). So, based on that message, I can only guess that you have, in one way or another, loaded two libraries which both use $ .

The jQuery solution for this is to use noConflict: http://docs.jquery.com/Core/jQuery.noConflict . Not knowing both sides of the clash, and not being able to access the site myself, that's the best I can do.

---

Edit: Did you try any of the solutions that MooTools suggests? http://mootools.net/blog/2009/06/22/the-dollar-safe-mode/

Answer 2

Your jQuery.noConflict() most likely comes after some other scripts are loaded and attempt to use $ .

Another thing... jQuery.noConflict() may not work if it's included before the other library, as it's in this case.

Answer 3

You have to make sure that even if you have jQuery in no conflict mode, that you have MooTools loading first . If you load jQuery, put it into no conflict mode, then load MooTools, it will fail. I wrote some documentation on this in my book: http://www.packtpub.com/files/learning-joomla-1-5-extension-development-sample-chapter-8-using-javascript-effects.pdf

If you make sure that the following call is made before jQuery gets added to the document, it should load MooTools before jQuery:

JHTML::_('behavior.mootools');