超实用的 JavaScript 日期代码片段

Get days difference between dates (获取两个日期之间相差的天数)

计算 Date 对象之间的差异(以天为单位)

1. const getDaysDiffBetweenDates = (dateInitial, dateFinal) => (dateFinal - dateInitial) / (1000 * 3600 * 24);
2. // getDaysDiffBetweenDates(new Date("2017-12-13"), new Date("2017-12-22")) -> 9