js对于如日期的大小比较

js日期比较(yyyy-mm-dd)

 function duibi(a, b) {
    var arr = a.split("-");
    var starttime = new Date(arr[0], arr[1], arr[2]);
    var starttimes = starttime.getTime();

    var arrs = b.split("-");
    var lktime = new Date(arrs[0], arrs[1], arrs[2]);
    var lktimes = lktime.getTime();

    if (starttimes >= lktimes) {

        alert('开始时间大于离开时间，请检查');
        return false;
    }
    else
        return true;

}

 

js时间比较(yyyy-mm-dd hh:mi:ss)

function comptime() {
    var beginTime = "2009-09-21 00:00:00";
    var endTime = "2009-09-21 00:00:01";
    var beginTimes = beginTime.substring(0, 10).split('-');
    var endTimes = endTime.substring(0, 10).split('-');

    beginTime = beginTimes[1] + '-' + beginTimes[2] + '-' + beginTimes[0] + ' ' + beginTime.substring(10, 19);
    endTime = endTimes[1] + '-' + endTimes[2] + '-' + endTimes[0] + ' ' + endTime.substring(10, 19);

    alert(beginTime + "aaa" + endTime);
    alert(Date.parse(endTime));
    alert(Date.parse(beginTime));
    var a = (Date.parse(endTime) - Date.parse(beginTime)) / 3600 / 1000;
    if (a < 0) {
        alert("endTime小!");
    } else if (a > 0) {
        alert("endTime大!");
    } else if (a == 0) {
        alert("时间相等!");
    } else {
        return 'exception'
    }
}

//js格式化时间戳

new Date(1500602630000).Format("yyyy-MM-dd")

 

js中yyyy-mm-dd hh:mm 比较时间大小

1. var startDate = startTime.substring(0,10).split('-');  
2.                 var endDate = endTime.substring(0,10).split('-');  
3.                 var startNum = startDate[1]+'-'+startDate[2]+'-'+startDate[0]+' '+startTime.substring(10,16);    
4.                 var endNum = endDate[1]+'-'+endDate[2]+'-'+endDate[0]+' '+endTime.substring(10,16);  
5.                 var disparityTime =(Date.parse(endNum)-Date.parse(startNum))/3600/1000;   
6.                 if(Number(disparityTime)<0){  
7.                     alert("结束时间必须在开始时间后！");  
8.                     return;  
9.                 }