Get days difference between dates (获取两个日期间的差距)
计算两个 Date
对象之间的差距(以天为单位)。
const getDaysDiffBetweenDates = (dateInitial, dateFinal) => (dateFinal - dateInitial) / (1000 * 3600 * 24);
// getDaysDiffBetweenDates(new Date("2017-12-13"), new Date("2017-12-22")) -> 9