Boolean.prototype

Boolean.prototype 属性表示Boolean 构造函数的原型。

Boolean.prototype 属性的属性特性：
writable false
enumerable false
configurable false

描述

Boolean实例添加属性或方法。

属性

Boolean.prototype.constructor
返回创建了实例原型的函数。默认为 Boolean函数。

方法

Boolean.prototype.toSource()
返回包含 Boolean对象源码的字符串；你可以使用这个字符串来创建一个等价的对象。覆盖了 Object.prototype.toSource() 方法。
Boolean.prototype.toString()
根据对象的值来返回一个字符串： "true" 或 "false"。覆盖了 Object.prototype.toString() 方法。
Boolean.prototype.valueOf()
返回 Boolean对象的原始值。覆盖了 Object.prototype.valueOf() 方法。

规范

Specification Status Comment
ECMAScript 1st Edition (ECMA-262) Standard Initial definition. Implemented in JavaScript 1.0.
ECMAScript 5.1 (ECMA-262)
Boolean.prototype		 Standard  
ECMAScript 2015 (6th Edition, ECMA-262)
Boolean.prototype		 Standard  
ECMAScript Latest Draft (ECMA-262)
Boolean.prototype		 Draft  

浏览器兼容

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
prototype Chrome Full support 1 Edge Full support 12 Firefox Full support 1 IE Full support 3 Opera Full support Yes Safari Full support Yes WebView Android Full support 1 Chrome Android Full support 18 Firefox Android Full support 4 Opera Android Full support Yes Safari iOS Full support Yes Samsung Internet Android Full support 1.0 nodejs Full support Yes

Legend

Full support  
Full support
  1. JavaScript 标准库
  2. Boolean
  3. 属性
    1. Boolean.prototype
  4. 方法
    1. Boolean.prototype.toSource()
    2. Boolean.prototype.toString()
    3. Boolean.prototype.valueOf()
  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()
  9. Object
  10. 属性
    1. Object.prototype.__count__
    2. Object.prototype.__noSuchMethod__
    3. Object.prototype.__parent__
    4. Object.prototype.__proto__
    5. Object.prototype.constructor
  11. 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.unwatch()
    12. Object.prototype.valueOf()
    13. Object.prototype.watch()
    14. Object.setPrototypeOf()