We Keep Coding

Setting selected date in calendar to null on Bootstrap datetime picker

I'm using the bootstrap datetime picker, the documentation of which can be found here: https://eonasdan.github.io/bootstrap-datetimepicker/Options/
I'm trying to set the selected date to null. I'm able to blank out the date (i.e. 2/10/2019) within the input field, but when I click on the input field and the calendar opens, the old date is still selected in blue. WiThis is my code to de-select all dates within the calendar.
$(document).ready(function() {
$('.removedate').on('click', function(){
$("#id_booking_date").val('') //this correctly removes date from input field
$('.input-group').datetimepicker({
date: new Date(null)
});
});
This code isn't working. Do you know what I should try?
Thanks!

Can you please try to use "useCurrent" option for this? Check it out here https://eonasdan.github.io/bootstrap-datetimepicker/Options/#usecurrent

Please try this, they have clearly mentioned here
Working example:
$('#datetimepicker4').datetimepicker({
useCurrent: false,//
});

bootstrap-datepicker does not update AngularJS model when picking date

I am using AngularJS with this bootstrap-datepicker plugin:
Datepicker for Bootstrap v1.6.4 (https://github.com/eternicode/bootstrap-datepicker)
Copyright 2012 Stefan Petre
Improvements by Andrew Rowls
I have it bound like this:
<input type="text" data-provide="datepicker" ng-model="obj.FirstDate" />
I get the values to inputs using ng-model.
When I type the date into this field using keyboard it all works OK, but when I click on a field and select a date from the Datepicker:
the model doesn't get updated,
the field is not treated as dirty (no ng-dirty class).
Is there a way to tell Angular to update value of obj.FirstDate when using the Datepicker? For example to attach it to an event? Or any other way that this would work?
I have a few of these fields so I don't want to write the script which attaches to a field using its id. Any help appreciated.

After much time of struggling with this I was forced to use below code to fix every of my datepicker instances at once:
function fixDatepickerTriggerChange() {
$(document).ready(function () {
$('[data-provide="datepicker"]').datepicker().on('changeDate', function (e) {
angular.element($(this)).triggerHandler('input');
});
});
}
And run it from within the angular.controller.
Based on this answer: https://stackoverflow.com/a/23850753/1813219.

Multi Dates Picker Bug?

I've been trying to add a date picker to my site that allows users to pick multiple non-concurrent dates. Multidatespicker appears to do what I want but i've got to a point where I think I have discovered a bug, particularly with it's AltField, which is confirmed here. The bug seems to stop the altfield's values showing. If you visit the Multidatespicker demo and inspect the altfield you'll see that while it appears empty the values are showing in the code.
The issue this presents for me is that I can't edit previously selected dates when returning a record from my App/DB. When passing the value of altfield back to my Rails App for database storage I only receive the hidden values shown in the code.
If I can get the altfield to correctly show these values and allow me to edit them via the date selector, then I should be amend within my app's backend.
Note the suggested fix on the github link above does not solve this issue - it only enables rendering dates in 'dateVar' as being selected in the picker....it does nothing to show values in altField.
Has anyone used this and had the same problem and solved it?
Does anyone know how to fix it?
OR
Can anyone suggest a good alternative that will work nicely with a Rails 3 App using Twitter Bootstrap. It's very important that i'm able to select multiple non-concurrent dates. I've searched quite extensively but MultiDatesPicker seems to be one of the only options I can find.

The problem is that Multidatespicker is not listening #altField so we need to create our own listener to add/remove dates.
The idea is to add values to a hidden or readonly input and add/remove dates by an other. This prevent the customer to add dates in #altField and getting them overwritten by the plugin.
HTML
<input type="text" id="date">
<button type="button" id="addDate">Add dates</button>
<button type="button" id="removeDate">Remove dates</button>
<div class="ui-state-error" id="error"></div>
<br />
<input type="text" id="altField" readonly value="2013-08-30,2013-08-31">
JAVASCRIPT
And with javascript we simply add the date with a button (could be on keyup or anything your imagination can imagine :)
var dates = $('#altField').val().split(',');
$('#datepicker').multiDatesPicker({
dateFormat: "yy-mm-dd",
addDates: dates,
altField: '#altField'
});
$('#addDate, #removeDate').on('click', function() {
try {
var $date = $('#date');
var addOrRem = $(this).attr('id') === "addDate" ? 'addDates' : 'removeDates';
$('#datepicker').multiDatesPicker(addOrRem, $date.val());
$date.val('');
} catch (e) {
var $error = $('#error');
$error.html(e).slideDown();
setTimeout(function() {
$error.slideUp();
}, 2000);
}
});
jsFiddle

I have scanned the source of MultiDatesPicker. I don't find any method which set the date from the #altfield. So it is not a bug it is missing.
I also do not understand the difference between the preselected dates and the altfield.
I think you can do what you want with a combination of preselect and the altfield:
html
<div id="with-altField"></div>
<input type="text" id="altField" value="08/22/2013,08/21/2013">
</div>
javascript
//first read the values of the #altfield
var dates = $('#altField').val().split(',');
//second set your multiDatesPicker with the dates of step 1 and an altfield
$('#with-altField').multiDatesPicker({
dateFormat: "mm/dd/yy",
addDates: dates,
altField: '#altField'
});
nb load the javascript on document ready

Jquery date validation for invalid date entry

I'm implementing jQuery date picker. which can pick date from calendar as well as keyboard entry. When it is picked from the calendar it's working fine.
<input type="text" id="date" />
<script>
$('#date').datepicker ({
dateFormat: 'mm/dd/yy'
}).on("change", function(){
alert("You Entered: "+($(this).datepicker('getdate')));
})
Problem is when I enter, lets say 02/31/2014. which is invalid. I wanted to set a custom message to the user that $ is invalid.
But Jquery is passing on today's date for wrong entries. How can I get exact value of user entry (02/31/2014)?

When using the getdate method of jQuery, Its automatically setting to today's date for an invalid date (not sure why it is lke this in Jquery).
alert("You Entered: "+($(this).datepicker('getdate')));
instead of this use this
alert("You Entered: "+($("#date").val());
Update: Fiddle Demo

jQuery UI date picker - updating another date picker on selecting a date

I have 2 date pickers using the Jquery UI. If the user selects a date from date picker 1, how can I get it to update date picker 2 automatically with the same date?
I think this might be quite simple, but I've tried a few things and nothing seems to work.
Thanks in advance.

The date picker is essentially a text input element. You can use the jquery change handler on the first input element to grab its contents when they change, then simply select the second input element and update the value using jquery val.
http://api.jquery.com/change/
http://api.jquery.com/val/
Something like:
$("#firstdatepicker").change( function() {
$("#seconddatepicker").val($(this).val());
});

You'll want to use the onClose event to update the second text field.
I've created this fiddle here that works; for some reason the styling that's usually on the datepicker is not coming in though.
HTML:
<input type="text" name="date1" value="" />
<br>
<input type="text" name="date2" value="" />
Javascript:
$("input[name=date1]").datepicker({
onClose: function(dateText, inst) {
$("input[name=date2]").val(dateText);
}
});
$("input[name=date2]").datepicker();