BigInt.prototype.valueOf()

valueOf() 方法返回 BigInt 对象包装的原始值。

语法

bigIntObj.valueOf()

返回值

表示指定 BigInt 对象的原始 BigInt 值。

例子

Using valueOf

typeof Object(1n); // object
typeof Object(1n).valueOf(); // bigint

标准

Specification Status
ECMAScript Latest Draft (ECMA-262)
BigInt.prototype.valueOf()		 Draft

浏览器支持

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
valueOf Chrome Full support 67 Edge No support No Firefox Full support 68 IE No support No Opera Full support 54 Safari No support No WebView Android Full support 67 Chrome Android Full support 67 Firefox Android Full support 68 Opera Android Full support 48 Safari iOS No support No Samsung Internet Android Full support 9.0 nodejs Full support 10.4.0

Legend

Full support  
Full support
No support  
No support

请参阅

  1. JavaScript 标准库
  2. BigInt
  3. 方法
    1. BigInt.asIntN()
    2. BigInt.asUintN()
    3. BigInt.prototype.toLocaleString()
    4. BigInt.prototype.toString()
    5. BigInt.prototype.valueOf()
  4. 继承
  5. Function
  6. 属性
    1. Function.arguments
    2. Function.arity
    3. Function.caller
    4. Function.displayName
    5. Function.length
    6. Function.name
    7. Function.prototype
  7. 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()
  8. Object
  9. 属性
    1. Object.prototype.__count__
    2. Object.prototype.__noSuchMethod__
    3. Object.prototype.__parent__
    4. Object.prototype.__proto__
    5. Object.prototype.constructor
  10. 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()