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.
ThevalueOf() method ofBigInt values returns the wrapped primitive valueof aBigInt object.
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 specifiedBigInt object.
Examples
UsingvalueOf
js
typeof Object(1n); // objecttypeof Object(1n).valueOf(); // bigintSpecifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-bigint.prototype.valueof |