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Editorial Team
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Asked: 2026-06-12T23:28:16+00:00

i have a scenario where javascript function name needs to be decided at run

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i have a scenario where javascript function name needs to be decided at run time. For simplicity assume i have function name in javascript variable and now i want to create the function using variable value. I went thru the link Javascript – Variable in function name, possible? and tried the small code snippet

   <HTML>
       <HEAD>
          <TITLE> New Document </TITLE>
      </HEAD>
        <script>
        var temp1='at_26';
        temp1: function() {alert("Inside 26"); }
        </script>
         <BODY>
            <a href="javascript:window[at_26]()">Copy Text</a>
         </BODY>
    </HTML>

But when i click on hyperlink Copy Text it gives error saying Line: 1
Error: ‘at_26’ is undefined

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1 Answer

  1. Editorial Team

    DEMOs

    var temp1='at_26'; 
window[temp1]=function() {alert("Inside 26"); return false}

    and then 

    <a href="#" onclick="return window['at_26']()">Click</a>

    or

    <a href="#" onclick="return at_26()">Click</a>

    should work

    What I THINK you want since it does not pollute the global scope and is using a colon like in your example is this:

    var myScope = {
  "at_26":function() {alert("Inside 26"); return false}
}

    using 

    <a href="#" onclick="return myScope.at_26()">Click</a><br />
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