BigInt

BigInt is a built-in object that provides a way to represent whole numbers larger than 2^53, which is the largest number JavaScript can reliably represent with the Number primitive.

BigInt(value);

Usages

const theBiggestInt = 9007199254740991n;

const alsoHuge = BigInt(9007199254740991); //9007199254740991n

const hugeString = BigInt("9007199254740991"); //9007199254740991n

const hugeHex = BigInt("0x1fffffffffffff"); //9007199254740991n

const hugeBin = BigInt("0b11111111111111111111111111111111111111111111111111111");//9007199254740991n

Type information

typeof 1n === 'bigint'; // true
typeof BigInt('1') === 'bigint'; // true