X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=b9a2fed49f4598a305b8f659f947e71be9590053;hb=1762dc24d66c7cbda189acffc21694884bb2ec7a;hp=42fd8d499be454b34b3b5791ced7b08b7d4fd311;hpb=858d56fc8e26a686cb19d1e35b0c2e8953987e49;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 42fd8d4..b9a2fed 100644
--- a/src/core.js
+++ b/src/core.js
@@ -24,7 +24,10 @@ var jQuery = window.jQuery = window.$ = function( selector, context ) {
 var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/,
 
 // Is it a simple selector
-	isSimple = /^.[^:#\[\.]*$/;
+	isSimple = /^.[^:#\[\.]*$/,
+
+// Will speed up references to undefined, and allows munging its name.	
+	undefined;
 
 jQuery.fn = jQuery.prototype = {
 	init: function( selector, context ) {
@@ -337,12 +340,12 @@ jQuery.fn = jQuery.prototype = {
 	},
 
 	add: function( selector ) {
-		return !selector ? this : this.pushStack( jQuery.merge( 
+		return this.pushStack( jQuery.unique( jQuery.merge( 
 			this.get(),
-			selector.constructor == String ? 
-				jQuery( selector ).get() :
-				selector.length != undefined && (!selector.nodeName || jQuery.nodeName(selector, "form")) ?
-					selector : [selector] ) );
+			typeof selector == 'string' ? 
+				jQuery( selector ) :
+				jQuery.makeArray( selector )
+		)));
 	},
 
 	is: function( selector ) {