js 获取两个日期相差的天数--自定义方法

 //获取两个日期的相差天数
    datedifference=function(sDate1, sDate2) {    
        var dateSpan,
            tempDate,
            iDays;
        sDate1 = Date.parse(sDate1);
        sDate2 = Date.parse(sDate2);
        dateSpan = sDate2 - sDate1;
        dateSpan = Math.abs(dateSpan);
        iDays = Math.floor(dateSpan / (24 * 3600 * 1000));
        return iDays
    };

 

转载于:https://www.cnblogs.com/lbonet/p/8932159.html

 //获取两个日期的相差天数
    datedifference=function(sDate1, sDate2) {    
        var dateSpan,
            tempDate,
            iDays;
        sDate1 = Date.parse(sDate1);
        sDate2 = Date.parse(sDate2);
        dateSpan = sDate2 - sDate1;
        dateSpan = Math.abs(dateSpan);
        iDays = Math.floor(dateSpan / (24 * 3600 * 1000));
        return iDays
    };