jQuery ui Datepicker, add days in variable

Question

I am trying to add 3 days to the date I get from the jQuery Datepicker as a variable as I show in this example:

var dateSelected = fromDateInput.datepicker('getDate');
var count = 3;

var lol = dateSelected.setDate(dateSelected.getDate() + count);
console.log(lol);

If I use the variable I will get this in the console for example: 1449615600000.

If I do it like this:

var dateSelected = fromDateInput.datepicker('getDate');
var count = 3;

dateSelected.setDate(dateSelected.getDate() + count);
console.log(dateSelected);

I will get the correct date (The date I select in the datepicker + 3 days)

Why can't I use it in a variable?

krlzlx · Accepted Answer · 2015-11-27 13:45:23Z

1

Try this:

var dateSelected = fromDateInput.datepicker('getDate');
var count = 3;

var dateUpdated = dateSelected.getDate() + count;
dateSelected.setDate(dateUpdated);
console.log(dateUpdated);

The setDate method doesn't return anything. See the documentation: jQuery UI DatePicker setDate

answered Nov 27, 2015 at 13:45

krlzlx

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CY_Techie · Accepted Answer · 2015-11-27 13:50:55Z

0

Try This:

var d = new Date("mm/dd/yyyy");
d.setDate(d.getDate()+3);

answered Nov 27, 2015 at 13:50

CY_Techie

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1 Comment

Guanxi Over a year ago

It would be good if you put up some more explanations with your answer.

Code Ranger · Accepted Answer · 2015-11-27 13:54:31Z

0

The result of setDate is the number of milliseconds since midnight 1st January 1970. In your second example you are using the actual date object, which is why the second example gives you what you want and the first does not.

answered Nov 27, 2015 at 13:54

Code Ranger

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1 Comment

Code Ranger Over a year ago

@krlzlx the getDate method on the jquery object returns a javascript date object. The subsequent call to setDate is called on the Date object not on the JQuery object, therefore it is incorrect to say setDate doesn't return anything.

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