JavaScript

How to get date duration (years, month, and days) between dates in javascript?

How to get date duration (years, month, and days) between dates in javascript?, someone asked me to explain?
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In this article we will discuss how to get date duration between dates in javascript. Here we are passing new date object with parameter as date string from using datepicker. Using our own logic and date functions we find out exact date difference.

Example:

 

<html>
<head>
    <title>how to get dateduration between dates using javascript  </title>
    <script src="//code.jquery.com/jquery-1.10.2.js"></script>
    <link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
    <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
    <script>
        $(function () {
            $("#dtpFromDate").datepicker();
            $("#dtpToDate").datepicker();
        });
        function displayDate() {
            var d1 = new Date($("#dtpFromDate").val()); //from date yyyy-MM-dd
            var d2 = new Date($("#dtpToDate").val()); //to date yyyy-MM-dd (takencurrentdate)
            var Months = d2.getMonth() - d1.getMonth();
            var Years = d2.getFullYear() - d1.getFullYear();
            var Days = d2.getDate() - d1.getDate();
           Months = (d2.getMonth() + 12 * d2.getFullYear()) -
                     (d1.getMonth() + 12 *d1.getFullYear());
            var MonthOverflow = 0;
            if (Months - (Years * 12) < 0)
               MonthOverFlow = -1;
            else
               MonthOverFlow = 1;
            if (MonthOverFlow < 0)
               Years = Years - 1; Months = Months - (Years * 12);
            var LastDayOfMonth = new Date(d2.getFullYear(),
                     d2.getMonth() + 1, 0, 23, 59, 59);
           LastDayOfMonth = LastDayOfMonth.getDate();
            if (MonthOverFlow < 0 && (d1.getDate() >d2.getDate())) {
               Days = LastDayOfMonth + (d2.getDate() - d1.getDate()) - 1;
            }
            else
               Days = d2.getDate() - d1.getDate();
            if (Days < 0)
               Months = Months - 1;
            var l = newDate(d2.getFullYear(), d2.getMonth(), 0);
            var l1 = newDate(d1.getFullYear(), d1.getMonth() + 1, 0);
            if (Days < 0) {
                if (l1 > l)
                   Days = l1.getDate() + Days;
                else
                   Days = l.getDate() + Days;
            }
           document.getElementById("demo").innerHTML= Years +
            "Year(s), " + Months + " Month(s), " + Days + "Day(s)";
        }
    </script>
    <style type="text/css">
        .btn {
            background: #249AA9;
            border-style: solid;
            border-color: white;
            color: white;
            height: 45px;
            font-size: 21px;
        }
        .dtp {
            border: 1px solid rgb(222, 216, 216);
            height: 40px;
            font-size: 21px;
        }
    </style>
</head>
<body style="border: 1px solid #DED8D8; width: 500px; height: 300px; padding: 15px; font-family: Arial; margin-left: 50px">
    <h2 style="color: #841198">Get duration between two selected  dates</h2>
    <table>
        <tr>
            <td>
                <input type="text" id="dtpFromDate" class="dtp" placeholder="from date" />
            </td>
        </tr>
        <tr>
            <td>
                <input type="text" id="dtpToDate" class="dtp" placeholder="to date" />
                   <button type="button" class="btn" onclick="displayDate()">
        DateDifference</button>
            </td>
        </tr>
    </table>
    <p id="demo" style="vertical-align: top;font-size:25px;color: #827373;">
    </p>
</body>
</html>

Output:

Get duration between two dates

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