Handle number input change event

Description

The following code shows how to handle number input change event.

Example


<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
  src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script type="text/javascript"
  src="http://code.jquery.com/mobile/1.3.0-beta.1/jquery.mobile-1.3.0-beta.1.js"></script>
<link rel="stylesheet" type="text/css"
  href="http://code.jquery.com/mobile/1.3.0-beta.1/jquery.mobile-1.3.0-beta.1.css">
<script type='text/javascript'>//<![CDATA[ 
$(window).load(function(){<!--from  www . j  a v  a2 s. com-->
    $('div#cont-sum-fields').on('change', 'input', function() {
        var total = 0;
        $('#cont-sum-fields').find('input[id^="cont-sum"]').each(function() {
            if ($(this).val() !== "") total += parseFloat($(this).val())
        });
        $('#cont-sum-fields').find('#total-cont-sum').val(total);
    });
});//]]>  
</script>
</head>
<body>
  <div id='cont-sum-fields'>
    <input type="number" id="cont-sum-1" /> 
    <input type="number" id="cont-sum-2" /> 
    <input type="number" id="cont-sum-3" /> 
    <input id="total-cont-sum" type="number" disabled />
  </div>
</body>
</html>

Click to view the demo





















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