Comma separated values within JSP for-each tag

Question

I am trying to get a JSTL <c:forEach> tag to work so that it would print a list of names as follows:

Best, Milo, Kane

My code is as follows:

<c:forEach items="${persons}" var="person">
    ${person.name}, 
</c:forEach>

However, on the last person/name, a comma is inserted at the end, e.g.

Best, Milo, Kane,

How can I avoid the last comma in the loop?

Answer 1

You could use LoopTagStatus#isLast

<c:forEach items="${persons}" var="person" varStatus="loop">
    ${person.name}
   <c:if test="${!loop.last}">,</c:if>
</c:forEach>

A simpler solution is to use a conditional operator within EL instead of the if tag

${!loop.last ? ',' : ''}