Hi I've the following code in jsp. I am trying to pass the value to javascript as follows. But it is not working.The code is as follows:

    <td><button name = "btn" onclick="callMe(<c:out value='${bus.vehicleId}'/>")>Show Details</button></td>

(Vehicle id is printing if I use in my jsp.) Javascript is like this.

    function callMe(myId) {
        alert(myId);}

Here I am getting value as "undefined". I've tried in different way as follows

    <td><button name = "btn" onclick="callMe('${bus.vehicleId}')>Show tails</button></td>

This is also not working.Please help me asap.

Hi I've the following code in jsp. I am trying to pass the value to javascript as follows. But it is not working.The code is as follows:

    <td><button name = "btn" onclick="callMe(<c:out value='${bus.vehicleId}'/>")>Show Details</button></td>

(Vehicle id is printing if I use in my jsp.) Javascript is like this.

    function callMe(myId) {
        alert(myId);}

Here I am getting value as "undefined". I've tried in different way as follows

    <td><button name = "btn" onclick="callMe('${bus.vehicleId}')>Show tails</button></td>

This is also not working.Please help me asap.

• javascript
• jsp
• jstl

Share Improve this question Follow edited Aug 2, 2013 at 10:45 user2028750 asked Aug 2, 2013 at 10:24 SrinivasSrinivas 15533 gold badges33 silver badges1010 bronze badges 1

• Debug what you actually have in ${bus.vehicleId}. – Alex Commented Aug 2, 2013 at 12:36

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2 Answers 2

Sorted by: Reset to default 2

Your vehicleID might be string. If so, Yes! you get always undefined as a result. What ever the values ing as a result of <c:out value='${bus.vehicleId}'/> will be treated as a variable in html and javascript trying to print that variable value, which is undefined.

Try this way to let java script treat that jstl value as string literal

onclick="callMe('${bus.vehicleId}')">

Find single colon and double colons positions!

<tr class="txtnbmed">
<td align="center"><c:out value="${conPartRef.opCode}" /></td>
<td align="center"><html:select property="approvalStatus" indexed="true" name="conPartRef">
<option value="" <c:if test="${conPartRef.approvalStatus==''}">selected</c:if>>--- SELECT ---
<option value="A" <c:if test="${conPartRef.approvalStatus=='A'}">selected</c:if> >Approved
<option value="R" <c:if test="${conPartRef.approvalStatus=='R'}">selected</c:if> >Rejected
</option>
</html:select>
</td>
</c:forEach>

<input type="button" class="txtMF" value="Confirm & Print Supplement RO" onclick="doMarkAsOFP(this.form)">

function doMarkAsOFP(form) {
// need to get approvalStatus values and the opCode values.
submitPage();
}