[jQuery] Re: Check if function exists

You could try to test for the existence of a global function that way, but it wouldn't work. It would give you a reference error on 'functionname' if it isn't defined.

 

For a global function you would use:

 

    if( window.functionname ) {

        ...

    }

 

But Miguel's question wasn't about global functions, it was about the tinymce plugin. He wants to find out if the $(...).tinymce() method exists before calling it. Since jQuery plugin methods are properties of $.prototype (aka $.fn), this will work:

 

    if( $.fn.tinymce ) {

        $(...).tinymce({

            ...

        });

    }

 

-Mike

---

From: Michael Lawson

if(functioname)
{
//it exists, do stuff
}
cheers

Michael Lawson
Development Lead, Global Solutions, ibm.com
Phone: 1-276-206-8393
E-mail: mjlawson@us.ibm.com

'Whether one believes in a religion or not,
and whether one believes in rebirth or not,
there isn't anyone who doesn't appreciate kindness and compassion..'

shapper ---09/02/2009 11:28:17 AM---Hello,

From:	shapper <mdmoura@gmail.com>
To:	"jQuery (English)" <jquery-en@googlegroups.com>
Date:	09/02/2009 11:28 AM
Subject:	[jQuery] Check if function exists

---

Hello,

I am loading TinyMCE using the new JQuery Plugin:

<script type="text/javascript">
 $().ready(function() {
    $('textarea.tinymce').tinymce({
      // Location of TinyMCE script
        script_url : '../js/tinymce/jscripts/tiny_mce/tiny_mce.js',

Is there a way to load only if tinymce plugin is present without
getting an error?

Basically if I don't want to load the tinymce I just don't load the
plugin ...
... Because I am not able to pass, I think, to my SiteScript.JS file
if I want to load or not the plugin.

Thanks,
Miguel