JQuery UI DatePicker using 2 date fields trying to get date difference

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I have 2 JQuery Date fields

Arrival
Departure

Arrival date must not be todays date - i got this sorted using minDate: 1 in the javascr

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予麋鹿

2021-01-03 12:15

I'm sure this example isn't perfect, but here's a working demo with most of what you require, using just jQuery and the jQuery UI Datepicker:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
    <meta http-equiv="Content-type" content="text/html; charset=UTF-8" />
    <title>Datepicker &amp; Difference</title>
    <link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7/themes/redmond/jquery-ui.css" media="screen" />
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
    <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.7/jquery-ui.min.js"></script>
    <script type="text/javascript">
        var DatePicked = function() {
            var departure = $("#departure");
            var arrival = $("#arrival");
            var nights = $("#nights");

            var triggeringElement = $(this);

            var departureDate = departure.datepicker("getDate");

            var minArrivalDate = new Date();
            if (departureDate != null) {
                minArrivalDate.setDate(departureDate.getDate() + 2);
            } else {
                minArrivalDate.setDate(minArrivalDate.getDate() + 1);
            }
            arrival.datepicker('option', 'minDate', minArrivalDate);

            var arrivalDate = arrival.datepicker("getDate");

            if (departureDate != null && arrivalDate != null && triggeringElement.attr("id") != "nights") {
                var oneDay = 1000*60*60*24;
                var difference = Math.ceil((arrivalDate.getTime() - departureDate.getTime()) / oneDay);
                nights.val(difference);
            } else if (departureDate != null && triggeringElement.attr("id") == "nights") {
                var nightsEntered = parseInt(nights.val());
                if (nightsEntered >= 2) {
                    var newArrivalDate = new Date();
                    newArrivalDate.setDate(departureDate.getDate() + nightsEntered);
                    arrival.datepicker("setDate", newArrivalDate);
                } else {
                    alert("Nights must be greater than 2.");
                }
            }
        }
        $(function() {
            $("#departure, #arrival").datepicker({
                onSelect: DatePicked
            });
            $("#nights").change(DatePicked);
            DatePicked();
        });
    </script>
</head>
<body>
<div>
    <label for="departure">Departure</label>
    <input type="text" id="departure" name="departure" />
</div>
<div>
    <label for="arrival">Arrival</label>
    <input type="text" id="arrival" name="arrival" />
</div>
<div>
    <label for="nights">Nights</label>
    <input type="text" id="nights" name="nights" />
</div>
</body>
</html>

Play around with that and see if you can integrate something similar into your app/site.

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悲&欢浪女

2021-01-03 12:24

I think the functionality of the arrival and departure shoud be reversed/swaped. I just changed over the labels and things became clearer but now the code looks wrong.

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野的像风

2021-01-03 12:26

when the departure date is not fixed on current month then the night doesn't properly added with departure date. for example today's date 25 th feb .if i set the departure date on 11 th march and fixed it for 5 nights then arrival date return 16th feb. where it has to be 16th march

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