String date to System date compare
Question
I have two dates , first date is string coming from input text like 01-01-2011(dd-MM-yyyy) and second date is current date or system date(new Date()).
I have to compare the input date to current date(gretter or equal). I'm facing issue of NaN and did not find efficient help in google.
Any help will be appreciate.
3 answers
solution1
1 ACCPTED 2014-05-14 11:14:41
Please try with the below code snippet.
var from = "13-05-2014".split("-");
var dt1 = new Date(from[2], from[1] - 1, from[0]);
var dt2 = new Date();
if (dt1 - dt2 > 0) {
alert("current or future date");
}
If you want difference in detail format then please check this link.
solution2
0 2014-05-14 11:15:26
var date=new Date();
var today= date.getDate()+"-"+(date.getMonth()-1)+"-"+date.getFullYear();
and compare with this date
or make two dates and use this method
function datediff(date1, date2) {
var y1 = date1.getFullYear();
var m1 = date1.getMonth();
var d1 = date1.getDate();
var y2 = date2.getFullYear();
var m2 = date2.getMonth();
var d2 = date2.getDate();
if (d1 < d2) {
m1--;
var date=new Date(y2, m2, 1, 12);
date.setDate(0);
d1 += date.getDate();
}
if (m1 < m2) {
y1--;
m1 += 12;
}
return [y1 - y2, m1 - m2, d1 - d2];
}
if it returned [0,0,0] two dates are equal
solution3
0 2014-05-14 11:32:14
<!DOCTYPE html>
<html>
<head>
<script>
Date.prototype.format=function(){
var year=this.getFullYear();
var month=this.getMonth();
var date=this.getDate();
return year+"-"+month+"-"+date;
}
var usrdate=new Date();
usrdate.setFullYear(2014,4,13);
usrdate=usrdate.format();
function compare(usrdate)
{
var sysdate=new Date().format();
if(sysdate>usrdate)
alert("System Date is greater");
else if(sysdate<usrdate)
alert("User Date is greater");
else
alert("Both date is equal");
}
</script>
</head>
<body>
<p onclick="compare(usrdate);">Compare Date </p>
</body>
</html>
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