X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=addff6bde760d48b93867cd265474229b22b54d6;hb=4b55e94d0849568a2fd121952f13a9d6571c731f;hp=f605e1d01020d110cf451b1e10c92d65ebc03536;hpb=bbffc99f7c60d42d4286786dfd6a43aa31d62ae2;p=jquery.git

diff --git a/src/core.js b/src/core.js
index f605e1d..addff6b 100644
--- a/src/core.js
+++ b/src/core.js
@@ -39,6 +39,7 @@ var jQuery = function( selector, context ) {
 
 	// Save a reference to some core methods
 	toString = Object.prototype.toString,
+	hasOwnProperty = Object.prototype.hasOwnProperty,
 	push = Array.prototype.push,
 	slice = Array.prototype.slice,
 	indexOf = Array.prototype.indexOf;
@@ -279,7 +280,7 @@ jQuery.extend = jQuery.fn.extend = function() {
 						clone = src;
 					} else if ( jQuery.isArray(copy) ) {
 						clone = [];
-					} else if ( jQuery.isObject(copy) ) {
+					} else if ( jQuery.isObjectLiteral(copy) ) {
 						clone = {};
 					} else {
 						clone = copy;
@@ -322,8 +323,18 @@ jQuery.extend({
 		return toString.call(obj) === "[object Array]";
 	},
 
-	isObject: function( obj ) {
-		return this.constructor.call(obj) === Object;
+	isObjectLiteral: function( obj ) {
+		if ( toString.call(obj) !== "[object Object]" ) {
+			return false;
+		}
+		
+		//own properties are iterated firstly,
+		//so to speed up, we can test last one if it is own or not
+		
+		var key;
+		for ( key in obj ) {}
+		
+		return !key || hasOwnProperty.call( obj, key );
 	},
 
 	isEmptyObject: function( obj ) {
@@ -444,19 +455,8 @@ jQuery.extend({
 		// expando of getElementsByTagName
 		var i = 0, elem, pos = first.length;
 
-		// Also, we need to make sure that the correct elements are being returned
-		// (IE returns comment nodes in a '*' query)
-		if ( !jQuery.support.getAll ) {
-			while ( (elem = second[ i++ ]) != null ) {
-				if ( elem.nodeType !== 8 ) {
-					first[ pos++ ] = elem;
-				}
-			}
-
-		} else {
-			while ( (elem = second[ i++ ]) != null ) {
-				first[ pos++ ] = elem;
-			}
+		while ( (elem = second[ i++ ]) != null ) {
+			first[ pos++ ] = elem;
 		}
 
 		return first;