compare two date using javascript and check

Question

this is my javascript function to compare two dates but it canot work correctly how to convert these character values to date format? my code is

function dateCompare() {

var fit_start_time  = $("#datepicker_from").val(); 
var fit_end_time    = $("#datepicker_to").val();


if((fit_start_time=="") || (fit_end_time==""))
{
alert ("Fill all fields");

}
else
{
if (fit_start_time > fit_end_time)
    {
    alert("invalid entry");
    $('#datepicker_to').val('');
    $('#datepicker_from').val(''); 
    }

}
}

my html code is

<html>
<body>

<form name="form6" id="form6" action="invoice_date_all.php" method="post">

    <div style="padding-top:4px;width:30px;float:left; ">From</div>
    <div style="width:172px;float:left; "> 
    <input type="text" id="datepicker_from" name="datepicker_from" onchange="dateCompare();" size="15"/>
    </div>
    <div  style="padding-top:4px;width:20px;float:left;  "> To</div>
    <div style="width:172px;float:left; "> 
    <input type="text" id="datepicker_to" name="datepicker_to" onchange="dateCompare();" size="15"/></div>

    <div class="label3"><input type="submit" value="Invoice Print"/></a></div>


        </form>
</body>
</html>

possible duplicate of [Compare dates with JavaScript](http://stackoverflow.com/questions/492994/compare-dates-with-javascript) — vaso123, Jan 08 '15 at 09:17

score 0 · Answer 1 · answered Jan 08 '15 at 09:50

0

var fit_start_time  = $("#datepicker_from").val(); 
var fit_end_time    = $("#datepicker_to").val();
            var a = fit_start_time.split('/');
            var start = new Date(a[2], a[1] - 1, a[0]);
            var b = fit_end_time.split('/');
            var end = new Date(b[2], b[1] - 1, b[0]);
            if (start > end) {

            }

If your date separator is different than "/" then use your's in above code.

answered Jan 08 '15 at 09:50

Needhi Agrawal

1,326
8
14

var start = new Date(a[2], a[1] - 1, a[0]); shows invalid date – Devi S Chandran Jan 09 '15 at 03:34
In my code the date format is d/m/Y, if you have different then you have to adjust Date object accordingly. – Needhi Agrawal Jan 09 '15 at 04:51
i cann't find its solution? any one answer me? – Devi S Chandran Feb 09 '15 at 10:27

compare two date using javascript and check

1 Answers1