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Editorial Team
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Asked: 2026-05-18T11:41:34+00:00

When i am trying to write the code like document.getElementById(‘id1’) after teh script tag

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When i am trying to write the code like
document.getElementById(‘id1’) after teh script tag it is showing document.getElementById(..) null or not an object..
Is it necessary to write document.getElementById(‘id1’) in function only.
If i write this code in function then it is accepting. So what the mistake here..
and if i want to execute a function on loading of the page where to write onLoad() function.. i try to write at but it is not loading.. please help me
Thank you

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1 Answer

  1. Editorial Team

    In order to be sure that your dom element is loaded, you have to wait the document is loaded.

    To do this you can do:

    <head>

    <script type="text/javascript">
        function foo(){
          var elem = document.getElementById("yourElem");
        //...
        }
    </script>
</head>
<body onload="foo()">...</body>

    or

    <head>

    <script type="text/javascript">
        function foo(){
         var elem = document.getElementById("yourElem");
        //...
        }

        window.onload = foo;
    </script>
</head>
<body>...</body>
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