X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=src%2Fcore.js;h=74b9fee3992ffa0eee504127684af3ae12bc764f;hb=190812c3be99bde536d373b6b6ab65cfe053a532;hp=78f48d71b66e1f843fdbfdb1303c0019b8757040;hpb=c6b9654ea8524e76f49f17f1bb0f6a38ce36bca3;p=jquery.git

diff --git a/src/core.js b/src/core.js
index 78f48d7..74b9fee 100644
--- a/src/core.js
+++ b/src/core.js
@@ -12,6 +12,9 @@ var jQuery = function( selector, context ) {
 	// Map over the $ in case of overwrite
 	_$ = window.$,
 
+	// Use the correct document accordingly with window argument (sandbox)
+	document = window.document,
+
 	// A central reference to the root jQuery(document)
 	rootjQuery,
 
@@ -72,10 +75,13 @@ jQuery.fn = jQuery.prototype = {
 					}
 
 					// Otherwise, we inject the element directly into the jQuery object
-					ret = jQuery( elem || null );
-					ret.context = document;
-					ret.selector = selector;
-					return ret;
+					this.length = elem ? 1 : 0;
+					if ( elem ) {
+						this[0] = elem;
+					}
+					this.context = document;
+					this.selector = selector;
+					return this;
 				}
 
 			// HANDLE: $(expr, $(...))
@@ -116,16 +122,18 @@ jQuery.fn = jQuery.prototype = {
 		return this.length;
 	},
 
+	toArray: Array.prototype.slice,
+
 	// Get the Nth element in the matched element set OR
 	// Get the whole matched element set as a clean array
 	get: function( num ) {
 		return num == null ?
 
 			// Return a 'clean' array
-			Array.prototype.slice.call( this ) :
+			this.toArray() :
 
 			// Return just the object
-			this[ num ];
+			( num < 0 ? this.toArray.call(this, num)[0] : this[ num ] );
 	},
 
 	// Take an array of elements and push it onto the stack
@@ -235,9 +243,15 @@ jQuery.extend = jQuery.fn.extend = function() {
 
 				// Recurse if we're merging object values
 				if ( deep && copy && typeof copy === "object" && !copy.nodeType ) {
-					target[ name ] = jQuery.extend( deep,
-						// Never move original objects, clone them
-						src || ( copy.length != null ? [ ] : { } ), copy );
+					var clone;
+
+					if( src ) clone = src;
+					else if( jQuery.isArray(copy) ) clone = [ ];
+					else if( jQuery.isObject(copy) ) clone = { };
+					else clone = copy;
+
+					// Never move original objects, clone them
+					target[ name ] = jQuery.extend( deep, clone, copy );
 
 				// Don't bring in undefined values
 				} else if ( copy !== undefined ) {
@@ -273,6 +287,16 @@ jQuery.extend({
 		return toString.call(obj) === "[object Array]";
 	},
 
+	isObject: function( obj ) {
+		return this.constructor.call(obj) === Object;
+	},
+
+	isEmptyObject: function( obj ) {
+		var name = "";
+		for(name in obj) break;
+		return !name;
+	},
+
 	// check if an element is in a (or is an) XML document
 	isXMLDoc: function( elem ) {
 		return elem.nodeType === 9 && elem.documentElement.nodeName !== "HTML" ||
@@ -307,7 +331,7 @@ jQuery.extend({
 
 	// args is for internal usage only
 	each: function( object, callback, args ) {
-		var name, i = 0, 
+		var name, i = 0,
 			length = object.length,
 			isObj = length === undefined || jQuery.isFunction(object);