在此页

• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

BigInt() constructor returns a value of type bigint .

句法

BigInt(value);
					

参数

value

The numeric value of the object being created. May be a string or an integer.

注意 : BigInt() is not used with the new operator.

范例

Creating a new BigInt

BigInt(123);
// 123n
					

规范

规范
ECMAScript (ECMA-262) The definition of 'BigInt constructor' in that specification.

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	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
BigInt() 构造函数	Chrome 67	Edge 79	Firefox 68	IE No	Opera 54	Safari No	WebView Android 67	Chrome Android 67	Firefox Android 68	Opera Android 48	Safari iOS No	Samsung Internet Android 9.0	nodejs 10.4.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• BigInt class

元数据

• 最后修改： May 26, 2020

相关话题

1. 标准内置对象
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. 特性
   1. Function.arguments
   2. Function.caller
   3. Function.displayName
   4. Function.length
   5. Function.name
7. 方法
   1. Function.prototype.apply()
   2. Function.prototype.bind()
   3. Function.prototype.call()
   4. Function.prototype.toSource()
   5. Function.prototype.toString()
8. Object
9. 特性
   1. Object.prototype.__proto__
   2. 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.valueOf()
    12. Object.setPrototypeOf()