Object.prototype.__parent__

非标准
该特性是非标准的，请尽量不要在生产环境中使用它！

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This feature is obsolete.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.

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

指向一个对象的上下文.

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。

规范

不属于任何规范。

浏览器兼容性

Update compatibility data on GitHub
Desktop Mobile Server
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet Node.js
__parent__
Deprecated Non-standard
Chrome No support No Edge No support No Firefox No support No IE No support No Opera No support No Safari No support No WebView Android No support No Chrome Android No support No Firefox Android No support No Opera Android No support No Safari iOS No support No Samsung Internet Android No support No nodejs No support No

Legend

No support  
No support
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.
Deprecated. Not for use in new websites.
Deprecated. Not for use in new websites.

参见

  1. JavaScript 标准库
  2. Object
  3. 属性
    1. Object.prototype
    2. Object.prototype.__count__
    3. Object.prototype.__noSuchMethod__
    4. Object.prototype.__parent__
    5. Object.prototype.__proto__
    6. Object.prototype.constructor
  4. 方法
    1. Object.assign()
    2. Object.create()
    3. Object.defineProperties()
    4. Object.defineProperty()
    5. Object.entries()
    6. Object.freeze()
    7. Object.fromEntries()
    8. Object.getNotifier()
    9. Object.getOwnPropertyDescriptor()
    10. Object.getOwnPropertyDescriptors()
    11. Object.getOwnPropertyNames()
    12. Object.getOwnPropertySymbols()
    13. Object.getPrototypeOf()
    14. Object.is()
    15. Object.isExtensible()
    16. Object.isFrozen()
    17. Object.isSealed()
    18. Object.keys()
    19. Object.observe()
    20. Object.preventExtensions()
    21. Object.prototype.__defineGetter__()
    22. Object.prototype.__defineSetter__()
    23. Object.prototype.__lookupGetter__()
    24. Object.prototype.__lookupSetter__()
    25. Object.prototype.eval()
    26. Object.prototype.hasOwnProperty()
    27. Object.prototype.isPrototypeOf()
    28. Object.prototype.propertyIsEnumerable()
    29. Object.prototype.toLocaleString()
    30. Object.prototype.toSource()
    31. Object.prototype.toString()
    32. Object.prototype.unwatch()
    33. Object.prototype.valueOf()
    34. Object.prototype.watch()
    35. Object.seal()
    36. Object.setPrototypeOf()
    37. Object.unobserve()
    38. Object.values()
  5. 继承
  6. Function
  7. 属性
    1. Function.arguments
    2. Function.arity
    3. Function.caller
    4. Function.displayName
    5. Function.length
    6. Function.name
    7. Function.prototype
  8. 方法
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.isGenerator()
    5. Function.prototype.toSource()
    6. Function.prototype.toString()