在此页

• 句法
• 描述
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

非标
此特征是非标准的，且不在标准轨道中。不要在面向 Web 的生产站点中使用它：它不适用于每个用户。实现之间可能存在大的不兼容性，且行为将来可能改变。

Obsolete since 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This feature is obsolete.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.

__parent__ property used to point to an object's context, but it has been removed.

句法

obj.__parent__
					

描述

For top-level objects, this is the e.g. window.

规范

Not part of any standard.

浏览器兼容性

Not supported anywhere. Historically supported until Firefox version 4.

另请参阅

• SpiderMonkey change du jour: the special __parent__ property has been removed
• Components.utils.getGlobalForObject

元数据

• 最后修改： Apr 28, 2020

相关话题

1. 标准内置对象
2. Archive
3. 继承：
4. Function
5. 特性
   1. Function.arguments
   2. Function.caller
   3. Function.displayName
   4. Function.length
   5. Function.name
6. 方法
   1. Function.prototype.apply()
   2. Function.prototype.bind()
   3. Function.prototype.call()
   4. Function.prototype.toSource()
   5. Function.prototype.toString()
7. Object
8. 特性
   1. Object.prototype.__noSuchMethod__
   2. Object.prototype.__parent__
   3. Object.prototype.__proto__
   4. Object.prototype.constructor
9. 方法
   1. Object.prototype.__defineGetter__()
   2. Object.prototype.__defineSetter__()
   3. Object.prototype.__lookupGetter__()
   4. Object.prototype.__lookupSetter__()
   5. Object.prototype.hasOwnProperty()
   6. Object.prototype.isPrototypeOf()
   7. Object.prototype.propertyIsEnumerable()
   8. Object.prototype.toLocaleString()
   9. Object.prototype.toSource()
   10. Object.prototype.toString()
   11. Object.prototype.valueOf()
   12. Object.setPrototypeOf()