Issue Angularjs, Why I Can't Return Actual Difference Between Two Dates?

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it doesn't show remaining dates between start and end date , instead it has show only some other values..??? why, what's wrong with this..???

JavaScript

try {
    if ((start != null && start != "") && (end != null && end != "")) {
    // if (start<end){

        //var timeStart =new Date(parseInt(start));
        var timeStart = new Date(Date.parse(start));
        var start = timeStart.getUTCDate();
        console.log(start);
         //var twoDigitMonth = start.getMonth()+"";if(twoDigitMonth.length==1)  twoDigitMonth="0" +twoDigitMonth;

        var timeEnd =new Date(Date.parse(end));
        var end = timeEnd.getUTCDate();
         console.log(end);
         // timeStart=start-end;
        var hour = end-start  ;
        console.log(hour);
        return Math.floor(( start - end));


    } else {
        return "-";
    }
} catch (e) {
    return "-";
}
};

});

[Edit member="Tadit"]
Added pre tags.
[/Edit]

Posted 31-May-15 21:05pm

Member 11661764

Updated 1-Jun-15 0:11am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

v2

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Kornfeld Eliyahu Peter · Answer 1 · 2015-06-01T01:35:00

In what units do you want the difference?
The code you have here computes the differences between the day in month of two dates...
For instance the difference between the 11/02/2014 and the 14/05/2015 will be 3...
What you may want is the actual difference, which is 1 year 4 months and 3 days...
What you have is to compute the difference in the smallest unit we have in data object - milliseconds...You are lucky as simple subtraction will do it for you...

JavaScript

var v1 = new Date('February 11, 2014');
var v2 = new Date('May 14, 2015');

var d = v2 - v1;

Now d has the value of 39481200000, which is the difference between the two dates in milliseconds...
To convert it to a date you can use this:

JavaScript

var date = new Date(d);

Now the only problem is that data is a point-in-time vale where you need difference between two points...The solution is to know what the base for that point-in-time - it is 1st of January 1970...
So you can see the difference as year-month-day using this code:

JavaScript

date.getFullYear() - 1970);
date.getMonth() + 1);
date.getDate());

for a working demo see here: http://jsfiddle.net/nbjeqmo5/[^]