Javascript Data Type How to - Get how many day difference between 2 dates

Question

We would like to know how to get how many day difference between 2 dates.

Answer


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
  src='http://code.jquery.com/jquery-1.7.1.js'></script>
<script type='text/javascript'>
$(window).load(function(){<!--  ww  w .  j a  va2  s.c  om-->
var dateA = new Date(2011, 12, 2);
var dateB = new Date(2011, 9, 24);
var difference = (dateB > dateA) ? dateB - dateA :dateA - dateB;
var daysDifference = Math.round((difference)/(1000*60*60*24));
var moreThan14 = (daysDifference > 14)
    ?"more than 14 days"
    :"equal or less than 14 days";
var result = moreThan14 + ' (' + daysDifference + ')';
$('#result').html(result);
});
</script>
</head>
<body>
  <div id='result'></div>
</body>
</html>

The code above is rendered as follows: