From: rkatic <robert.katic@gmail.com>
Date: Sun, 8 Nov 2009 23:26:01 +0000 (+0800)
Subject: Added comments to isObject.
X-Git-Url: http://git.asbjorn.biz/?p=jquery.git;a=commitdiff_plain;h=c2bbcd88335cf6f8df4ac9389ecbae90291377fb

Added comments to isObject.
---

diff --git a/src/core.js b/src/core.js
index ff31e81..6eeb9a6 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;
@@ -323,7 +324,17 @@ jQuery.extend({
 	},
 
 	isObject: function( obj ) {
-		return this.constructor.call(obj) === Object;
+		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 ) {