Boolean.prototype

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 | no |

| Enumerable | no |

| Configurable | no |

描述

Boolean实例继承自Boolean.prototype。你可以使用构造函数的原型对象向所有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。

规范

SpecificationStatusComment
ECMAScript 1st Edition (ECMA-262)StandardInitial definition. Implemented in JavaScript 1.0.
ECMAScript 5.1 (ECMA-262)The definition of 'Boolean.prototype' in that specification.Standard
ECMAScript 2015 (6th Edition, ECMA-262)The definition of 'Boolean.prototype' in that specification.Standard
ECMAScript Latest Draft (ECMA-262)The definition of 'Boolean.prototype' in that specification.Living Standard

浏览器兼容性

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic Support(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)

FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)(Yes)