BigInt.prototype.valueOf() - JavaScript | MDN
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since 2020年9月.
valueOf() 方法返回 BigInt 对象包装的原始值。
尝试一下
console.log(typeof Object(1n));
// Expected output: "object"
console.log(typeof Object(1n).valueOf());
// Expected output: "bigint"
语法
bigIntObj.valueOf()
返回值
表示指定 BigInt 对象的原始 BigInt 值。
示例
Using valueOf
js
typeof Object(1n); // object
typeof Object(1n).valueOf(); // bigint
规范
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-bigint.prototype.valueof |