What happens past Number.MAX_SAFE_INTEGER, and when you mix BigInts with numbers?
console.log(Number.MAX_SAFE_INTEGER + 2);
console.log(2 ** 53 === 2 ** 53 + 1);
console.log(9007199254740993n + 1n);
console.log(7n / 2n);
console.log(1n == 1, 1n === 1);
console.log(1n + 1);
console.log("done");
The answer
Work out every line it logs, in order. Then check.
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