[JS] Date 역순 정렬

const date = new Date();

const day = date.getDate();
const date2 = new Date();
date2.setDate(day + 5);

const date3 = new Date();
date3.setDate(day + 3)

const date4 = new Date();

const arr = [date2, date4, date, date3];

console.log(
    arr.sort(
        (a, b) =>  b - a
        // 오름차순 정렬은 (a, b) => a - b
        )
    );
    
/* 실행 결과
[
  2022-05-22T05:28:29.877Z,
  2022-05-20T05:28:29.877Z,
  2022-05-17T05:28:29.877Z,
  2022-05-17T05:28:29.877Z
]
*/