Develop Reference

Using Jquery's datepicker is it possible to set a default date if the date passed to it is None?

I'm using Jquery's datepicker with Jinja. I'm going to be passing dates from the Python side to the HTML & JS side to use with the datepicker, but there may not always be a date, so in the case that a date doesn't exist, can I have the datepicker default to the current date? Or not default to date at all?
$('#datepicker2').datepicker({
format: 'mm-dd-yyyy',
autoclose: true,
minDate: 0,
}).datepicker('setDate', 'now')
For example here is a datepicker I'm using. It defaults to the current date, but I want to be able to pass in a date to it to set the date, and if that date is None/Null, then I want it to default to 'now'. Is there some sort of conditional I can tie to it? Any help is appreciated! Thanks!

How i can change date format in date picker

How i can change date format in Date Picker from (19/07/2015) to (2015-07-19)
my Date Picker file :
http://lirz.com/picker.date.js

I read the docs and it looks like this should work.
$('.datepicker').pickadate({
format: 'yyyy-mm-dd',
formatSubmit: 'yyyy-mm-dd'
})

Json - Date not showing in correct format

When i fetch date from the db it is in following format :-
{5/13/2002 12:00:00 AM}
When i pass this as Json, i bind it to textbox & it shows me like this :-
/Date(1021228200000)/
How to display date in any correct format?
Extending this question I want to bind the date to html5 datepicker, How to do this?

var jsonDate = "/Date(1021228200000)/";
var date = new Date(parseInt(jsonDate.substr(6)));
The substr function takes out the "/Date(" part, and the parseInt function gets the integer and ignores the ")/" at the end. The resulting number is passed into the Date constructor.
jQuery dateFormat is a separate plugin. You need to load that explicitly.
Reference

You can use like below to display datetime and bind date to html5 datepicker.
<input class='selector' id='datepicker'/>
$( ".selector" ).datepicker({ dateFormat: 'yy-mm-dd' }).val();

Get local datetime format In Jquery

I want to get local machine datetime format in Jquery?
means if local date time format is in "MM-dd-yyyy" ,so this format I want to get in jquery.
OR
How can I convert my any datetime in local datetime format in jquery?

You can change date format in jquery datepicker as such:
var date = $('#datepicker').datepicker({ dateFormat: 'dd-mm-yy' }).val();
This Link , Link and Link may be helpful.

Why does changing the dateFormat of my jQuery datepicker fail?

I know there are loads of questions on here about changing the datepicker dateFormat, but i'm following the instructions exactly and they seem to have no effect. Here is the exact code that was suggested on other answers:
$(document).ready(function() {
$('#datepicker').datepicker({ dateFormat: 'dd-mm-yy' });
});
Yet when I run it, and test the datepicker value with alert($('#datepicker').datepicker("getDate"));
I get the date back in the undesired format! This is extremely confusing. Am I something wrong? See the described behaviour at http://jsfiddle.net/TmdM8/
edit: even more confusing is that if I read the dateformat using alert($("#datepicker").datepicker('option', 'dateFormat'));
... the returned dateFormat is correct, even though calling getDate does not return the date in the desired format. See http://jsfiddle.net/fWmBe/

the date format setting is for what the format looks like when it's show in the text box the picker is applied to.
have a look at my updated version of your fiddle:
http://jsfiddle.net/TmdM8/1/
as you can see, when you pcick in the text box, and pick a date, it is in the format you have specified.
as far as i know, the getDate function returns a javascript date.
EDIT:
if you wanted to format the output from the javascript date, you'll need to use a custom script, or a library like date.js (i've had great success with this).
http://code.google.com/p/datejs/
with that you could do something like :
$('#datepicker').datepicker("getDate").toString('dd-MM-yyyy');
to get your date in the format you like

I agree that it returns a javascript date. You can use this utility function:
$.datepicker.formatDate( format, date, settings ) - Format a date into a string value with a specified format.
from http://docs.jquery.com/UI/Datepicker/formatDate

What is happening here is getDate is return a javascript date object. You are seeing the date object's toString method.
Try this:
$(document).ready(function() {
$('#datepicker').datepicker({
onSelect: function(dateText, inst) { alert(dateText) }
});
$('#datepicker').datepicker( "option" , 'dateFormat', 'yyyy-mm-dd' )
});

in case someone looking for this answer like me. here is a working code:
<script>
$(function() {
$( "#datepicker" ).datepicker({inline: true, dateFormat:'yy-mm-dd'}); });
</script>