Add support for .get(-Number) Closes #4188

[jquery.git] / src / core.js

diff --git a/src/core.js b/src/core.js
index 78f48d7..1721bda 100644 (file)
--- 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
@@ -307,7 +315,7 @@ 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);