How to call a javascript function from a <c:if block

Question

I want to call a javascript function when flow enters into <c:if> block.

For example, I have below code:

<c:if test="${!empty errorMessage && !(fn:contains(errorMessage, 'generic'))}">
    <span> errorError occured<br />
    </span>
</c:if>

I need to invoke a JS function only when this <c:if> is true.

Please suggest how to achieve this.

Prakash K · Accepted Answer · 2012-09-25 07:14:49Z

6

You can include the <script> tag within the <c:if> block, something like this:

<c:if test="${!empty errorMessage && !(fn:contains(errorMessage, 'generic'))}">
    <span>
        errorError occured<br />
    </span>
    <script>
        alert("Calling my function ...");
        myFunction(); // this is a call to your function which must be defined in the <head> section or another JS file.
    </script>
</c:if>

Hope this helps.

answered Sep 25, 2012 at 7:14

Prakash K

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