使用javascript计算2个时间戳之间的差异 [英] Calculate difference between 2 timestamps using javascript

问题描述

我必须计算2个时间戳之间的差异。你也可以帮我把字符串转换成时间戳。仅使用普通的javascript。 NO JQUERY。

I have to calculate the difference between 2 timestamps. Also can you please help me with conversion of a string into timestamp. Using plain javascript only. NO JQUERY.

这是我的功能：

function clearInactiveSessions()
{
    alert("ok");
    <c:if test="${not empty pageScope.sessionView.sessionInfo}">
        var currentTime = new Date().getTime();
        alert("curr:"+currentTime);
        var difference=new Date();
        <c:forEach items="${pageScope.sessionView.sessionInfo}" var="inactiveSession">
            var lastAccessTime = ${inactiveSession.lastUpdate};
            difference.setTime(Maths.abs(currentTime.getTime()-lastAccessTime.getTime()));
            var timediff=diff.getTime();
            alert("timediff:"+timediff);
            var mins=Maths.floor(timediff/(1000*60*60*24*60));
            alert("mins:"+mins);
            if(mins<45)
                clearSession(${item.sessionID});
        </c:forEach>
    </c:if>
}

推荐答案

我发布自己的例子尝试在你的代码中实现这个

i am posting my own example try implement this in your code

FUNCTION timeDifference(date1,date2) {
        var difference = date1.getTime() - date2.getTime();

        var daysDifference = Math.floor(difference/1000/60/60/24);
        difference -= daysDifference*1000*60*60*24

       var hoursDifference = Math.floor(difference/1000/60/60);
        difference -= hoursDifference*1000*60*60

        var minutesDifference = Math.floor(difference/1000/60);
        difference -= minutesDifference*1000*60

        var secondsDifference = Math.floor(difference/1000);

     document.WRITE('difference = ' + daysDifference + ' day/s ' + hoursDifference + ' hour/s ' + minutesDifference + ' minute/s ' + secondsDifference + ' second/s ');

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