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Editorial Team
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Asked: 2026-05-28T17:48:32+00:00

I have a hidden input field defined in the html. I’m accessing the value

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I have a hidden input field defined in the html. I’m accessing the value of the input field but getting undefined.

HTML

<html>
   <head>
      <script src="js/jquery-1.6.4.js" type="text/javascript"></script>
      <script src="js/myjquery.js" type="text/javascript"></script>
</head>
<body>
   <form>
      <input type="hidden" name="hidden1" value="test" id="hidden1">
   </form>
</body>
</html>

UPDATED HTML

<html>
   <head>
      <script src="js/jquery-1.6.4.js" type="text/javascript"></script>         
</head>
<body>
   <form>
       <script src="js/myjquery.js" type="text/javascript"></script>
      <input type="hidden" name="hidden1" value="test" id="hidden1">
   </form>
</body>
</html>

UPDATED 2 HTML

<html>
   <head>
      <script src="js/jquery-1.6.4.js" type="text/javascript"></script>         
</head>
<body>
   <form>
       <script src="js/myjquery.js" type="text/javascript"></script>
      <input type="hidden" name="sk.hidden1" value="test" id="sk.hidden1">
   </form>
</body>
</html>

JQuery

$(document).ready(function () { 
   var inputParam = $("input#sk.hidden1").val();
   alert(inputParam);
});
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1 Answer

  1. Editorial Team

    Wild guessing here but seams that you are probably not including jQuery correctly.

    Try to include jQuery in the following fashion:

    <html>
   <head>
      <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"></script>         
</head>

    Edit:

    Even though your ID is valid it is frowned uppon because jQuery will treat that as id.class.

    Meaning it is looking for a field that has ID = sk class = hidden1.

    If you must work it that way you should have your selector with an escape: 

    $('#sk\\.hidden1');

    But I would sugest you rename your ID to someting else and discard the usage of dots in ID’s or classes. Use the - or _ as both are supported.

    The rules to name an ID are pretty simple:

    • Must begin with a letter A-Z or a-z
    • Can be followed by: letters (A-Za-z), digits (0-9), hyphens (“-“), and underscores (“_”)
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