Question

I need to compare two date in javascript.

In my code I am calling a web service method which serialize and returns in JSON format an instance of the following class

public class MyPeriod
{
    public int PeriodID { get; set; }
    public DateTime BeginDate { get; set; }
    public DateTime FirstDeadline { get; set; }
    public DateTime SecondDeadline { get; set; }
    public DateTime EndDate { get; set; }
} 

this will produces a JSON fragment like this:

{
    "d": {
        "PeriodID":26,
        "BeginDate":"\/Date(1321743660000)\/",
        "FirstDeadline":"\/Date(1322002860000)\/",
        "SecondDeadline":"\/Date(1322002860000)\/",
        "EndDate":"\/Date(1322168400000)\/"
    }
}

Now I need to compare FirstDeadline with SecondDeadline and so in my javascript I have a fragment like this

var date1 = eval(data.d.FirstDeadline.replace(/\/Date\((\d+)\)\//gi, "new Date($1)"));
var date2 = eval(data.d.SecondDeadline.replace(/\/Date\((\d+)\)\//gi, "new Date($1)"));
if (date1 === date2) {
    ...
}

Unfortunately the equal comparison does not work even if the dates have the same value.
Any help?

UPDATE 1

I forgot to mention that I need to compare only the date part (that’s way I am not comparing the milliseconds since the epoch).

Answer 1

You can do

if(date1.toDateString() === date2.toDateString()) {