fixing a TypeError when the function would be called without any arguments

diff --git a/resources/mediawiki.util/mediawiki.util.js b/resources/mediawiki.util/mediawiki.util.js
index 9e651cd..15c1735 100644 (file)
--- a/resources/mediawiki.util/mediawiki.util.js
+++ b/resources/mediawiki.util/mediawiki.util.js
@@ -258,6 +258,10 @@
                 */
                'addPortletLink' : function( portlet, href, text, id, tooltip, accesskey, nextnode ) {
 
+                       // Check if there's atleast 3 arguments to prevent a TypeError
+                       if ( arguments.length < 3 ) {
+                               return null;
+                       }
                        // Setup the anchor tag
                        var $link = $('<a />').attr( 'href', href ).text( text );