How to select the first element of a set with JSTL?
jakarta-ee, jstl
Solution
You can access individual elements with the array [] operator:
<c:out value="${attachments[0].id}" />
This will work for arrays and lists. It won't work for maps and sets. In that case you must put the key of the element inside the brackets.
Problem
I managed to do it with the next code but there must be an easier way. ``` <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %> <c:if test="${fn:length(attachments) > 0}"> <c:forEach var="attachment" items="${attachments}" varStatus="loopCount"> <c:if test="${loopCount.count eq 1}"> attachment.id </c:if> </c:forEach> </c:if> ```