BigInt.prototype.valueOf()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2020.
Try it
console.log(typeof Object(1n));
// Expected output: "object"
console.log(typeof Object(1n).valueOf());
// Expected output: "bigint"
Syntax
js
valueOf()
Parameters
None.
Return value
A BigInt representing the primitive value of the specified BigInt
object.
Examples
Using valueOf
js
typeof Object(1n); // object
typeof Object(1n).valueOf(); // bigint
Specifications
Specification |
---|
ECMAScript® 2025 Language Specification # sec-bigint.prototype.valueof |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | server | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
valueOf |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
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.