How to access JSP variable in scriptlet

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I have a JSP code like below having var x and I have added a scriptlet inside function and want access x in scriptlet. But getting errors while accessing, please let me know how to access x inside scriptlet?

What I have tried:

JavaScript

function checkfrm(obj)
{
    var x = obj.number.value;

   <%
        String value = "Number is "+x; // not working here
   %>
}

Posted 22-Jan-21 4:15am

Member 13740197

Updated 22-Jan-21 4:42am

Richard Deeming

v2

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Richard Deeming · Accepted Answer · 2021-01-22T04:42:00

Solution 1

Your Javascript function runs on the client, long after your JSP code has finished executing. You cannot access client-side variables from server-side code in this way.

You will need to find another solution to the problem you're actually trying to solve.

Posted 22-Jan-21 4:42am

Richard Deeming

v2