How to do a certain task only with the first output of a foreach loop?

Question

I want to output values of a list like this, but also I want to prepend another value to only the first element of the list, i.e. valuesInRow[0]. How do I do this while also outputting the other values in the list without the prepend?

<c:forEach var="valuesInRow" items="${valuesInRows}">                                        
  <td>${idPrepend}${valuesInRow}</td>
</c:forEach>

You can use `varStatus` to keep track of the loop – royalghost Apr 23 '19 at 16:42 — royalghost, Apr 23 '19 at 16:42

score 1 · Accepted Answer · answered Apr 23 '19 at 16:41

1

You can use varStatus: How to get a index value from foreach loop in jstl

It will give you some control about the loop.

answered Apr 23 '19 at 16:41

Franklin Soares

58
1
5

score 1 · Answer 2 · answered Apr 23 '19 at 16:43

1

Maybe you could get a hold onto the current index, and use aan if to check that you are on the first one ?

<c:forEach var="valuesInRow" items="${valuesInRows}" varStatus="loop">                                        
  <td><c:if test = "${loop.index == 0}"></c:if>${idPrepend}${valuesInRow}</td>
</c:forEach>

answered Apr 23 '19 at 16:43

Highbrainer

750
4
15

Thank you! I read about it and ended up using when/otherwise but thanks! – Nikrango Apr 23 '19 at 17:33

How to do a certain task only with the first output of a foreach loop?

2 Answers2