최댓값 & 최솟값

Number.MAX_SAFE_INTEGER

이 상수는 JavaScript에서 안전한 최대 정수값을 나타낸다.

const x = Number.MAX_SAFE_INTEGER + 1;
const y = Number.MAX_SAFE_INTEGER + 2;

console.log(Number.MAX_SAFE_INTEGER);
//expected output : 9007199254740991

console.log(x);
// expected output: 9007199254740992
console.log(x === y);
// expected output : true

https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER

Number.MIN_SAFE_INTEGER

Number.MIN_SAFE_INTEGER상수는 JavaScript에서 안전한 최소 정수값을 나타낸다.

const x = Number.MIN_SAFE_INTEGER - 1;
const y = Number.MIN_SAFE_INTEGER - 2;

console.log(Number.MIN_SAFE_INTEGER); // -9007199254740991

console.log(x); // -9007199254740992

console.log(x === y); //true

https://developer.mozilla.org/ko/docs/Web/JavaScript/Reference/Global_Objects/Number/MIN_SAFE_INTEGER