已废弃 Gecko 2 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1)
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

## 概述

指向一个对象的上下文.

Property of `Object`
Implemented in | JavaScript ?
ECMAScript Edition | -

## 语法

    obj.__parent__

## 描述

对于最顶层对象来说,这个属性的值就是全局对象window.

## 相关链接

- SpiderMonkey change du jour: the special __parent__ property has been removed
- __proto__