Ticket #3784: grep[6053].diff

src/core.js

@@ -1083 +1083 @@
         },
 
         grep: function( elems, callback, inv ) {
+                if( filter && !inv )
+                        return filter.call( elems, callback );
+                
                 var ret = [];
 
                 // Go through the array, only saving the items
@@ -1114 +1117 @@
 // It's included for backwards compatibility and plugins,
 // although they should work to migrate away.
 
-var userAgent = navigator.userAgent.toLowerCase();
+var userAgent = navigator.userAgent.toLowerCase(),
+        filter = Array.prototype.filter;
 
 // Figure out what browser is being used
 jQuery.browser = {