[javascript] date time difference, 날짜 시간 비교 함수

 

 

 

 

- 시간 절대값 비교(날짜 무시)

const HOUR_TO_SEC = 3600;
const MINUTE_TO_SEC = 60;

const timeDiff = (_date1: any, _date2: any) => {
  const diff = moment.utc(moment(_date1, "YYYY-MM-DD HH:mm:ss").diff(moment(_date2, "YYYY-MM-DD HH:mm:ss"))).format("HH:mm:ss");

  const hour_to_second = parseInt(diff.substring(0, 2)) * HOUR_TO_SEC;
  const minute_to_second = parseInt(diff.substring(3, 5)) * MINUTE_TO_SEC;
  const second = parseInt(diff.substring(6, 8));

  return hour_to_second + minute_to_second + second; // ms
};

 

 

 

- timestamp 비교(차이 계산)

const timeDifference = (_date1, _date2) => {
  const diffDate_1 = _date1 instanceof Date ? _date1 : new Date(_date1);
  const diffDate_2 = _date2 instanceof Date ? _date2 : new Date(_date2);

  const difference = diffDate_1.getTime() - diffDate_2.getTime();

  return difference; // ms
};