BigInt.prototype.toString()

Baseline

20209

toString() BigInt (BigInt) "n"

console.log(1024n.toString());
// : "1024"

console.log(1024n.toString(2));
// : "10000000000"

console.log(1024n.toString(16));
// : "400"

toString()
toString(radix)

10 9 16 16 a f

2 2 - 2

toString() this BigInt this TypeError

BigInt [Symbol.toPrimitive]() JavaScript BigInt toString() JavaScript BigInt toString() BigInt toString() toString()

BigInt.prototype.toString = () => "Overridden";
console.log(`${1n}`); // "1"
console.log(`${Object(1n)}`); // "Overridden"

17n.toString(); // "17"
66n.toString(2); // "1000010"
254n.toString(16); // "fe"
(-10n).toString(2); // "-1010"
(-0xffn).toString(2); // "-11111111"

0 BigInt 0 -0.0 JavaScript NumberIEEE

(-0n).toString(); // "0"
BigInt(-0).toString(); // "0"


ECMAScript 2027 LanguageSpecification # sec-bigint.prototype.tostring

MDN

MDN 20251130

GitHub