常见的日期格式有两种:
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’
}
}
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