js 时间相减函数

function timeDifference(date1, date2) {
    return date2 - date1;
}

const d1 = new Date('2023-07-01 10:00:00');
const d2 = new Date('2023-07-01 12:00:00');
const diffInMillis = timeDifference(d1, d2);
console.log(diffInMillis); 

function formatTimeDiff(diffInMillis) {
    const seconds = Math.floor(diffInMillis / 1000);
    const minutes = Math.floor(seconds / 60);
    const hours = Math.floor(minutes / 60);
    const days = Math.floor(hours / 24);

    return {
        days: days,
        hours: hours % 24,
        minutes: minutes % 60,
        seconds: seconds % 60
    };
}

const formattedDiff = formatTimeDiff(diffInMillis);
console.log(formattedDiff);