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Editorial Team
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Asked: 2026-05-16T20:09:01+00:00

I thought I understood jQuery, evidently not. Why, in this example, does the first

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I thought I understood jQuery, evidently not. Why, in this example, does the first textbox register clicks but not the second?

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4

/strict.dtd">
<html>
<head>
<script type="text/javascript" src="jquery-1.4.2.min"/>
<script type="text/javascript">

    captureKeys = function(event)
    {
    alert("foo");
    }
    $(document).ready(function()
            {
        $('#UsingJQuery').bind('keyup', function(){alert('bar');});
            });

</script>
</head>
<body id="contentText" >
    <input type="text" id="UsingPlainJavaScript" onkeyup="captureKeys()"/>
  <input type="text" id="UsingJQuery"/>
  
</body>
</html>

EDIT: OK, I’ve fixed the typo but it’s still not working..

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1 Answer

  1. Editorial Team

    This is asking for trouble:

    <script type="text/javascript" src="jquery-1.4.2.min"/>

    You need a </script> to have a valid markup

    <script type="text/javascript" src="jquery-1.4.2.min"></script>

    That is a big NoNo and might be the reason for your problem. Another thing is, there is no .js in your filename? Make sure that your jQuery lib has the correct name aswell.

    Reference: http://www.w3.org/TR/xhtml1/#C_3

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