JavaScript date compare fails but prints same value

Question

The following code does not compare two date.

var dateTextB=columns[0];
        var dateB = new Date(dateTextB);

        alert(dateA+' '+dateB);

        if (dateA==dateB)
        {
        // code
        }

        dateA= new Date(dateTextB);

That prints

Mon Aug 18 2014 23:30:00 GMT+0600 (Central Asia Standard Time)----------Mon Aug 18 2014 23:30:00 GMT+0600 (Central Asia Standard Time)

But Does not fulfill if condition. But prints same values sometimes.

I have tried if (dateA==dateB.getTime()) also.

Does anyone know what is wrong here?

to be safe in javascript you should always use `===` as comparison operator ([see](http://stackoverflow.com/questions/359494/does-it-matter-which-equals-operator-vs-i-use-in-javascript-comparisons)) — Niklas, Dec 08 '15 at 10:42
I didn't say it was the solution. That's why I didn't post an answer. I just wanted to point out that this is the better operator for comparison with equal signs. — Niklas, Dec 08 '15 at 11:00

score 0 · Accepted Answer · answered Dec 08 '15 at 10:39

0

Did you tried

if (dateA.getTime()==dateB.getTime())
{
}

answered Dec 08 '15 at 10:39

gurvinder372

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Yes I tried but does not work either. – tanvir Dec 08 '15 at 10:49
@tanvir please share a fiddle in that case – gurvinder372 Dec 08 '15 at 10:50
@ gurvinder: here is the link http://jsfiddle.net/tanvirbd/e42ack2L/1/ – tanvir Dec 08 '15 at 11:46
@tanvir updated the fiddle http://jsfiddle.net/gurvinder372/e42ack2L/2/ you still need to check for getTime() – gurvinder372 Dec 08 '15 at 11:47
Thank you so much. Now found I what was the problem. Initial value of dateA was null. That's way `if (dateA.getTime()==dateB.getTime())` was showing error – tanvir Dec 08 '15 at 12:01
@tanvir if it has helped you, don't forget to upvote and accept the answer – gurvinder372 Dec 08 '15 at 12:07

JavaScript date compare fails but prints same value

1 Answers1