c:forEach don't repeat same values when already present in previous row

Question

I\'m having some trouble with this...

I have code like this:

Market market = new market();
List list = marketService.getMarketItemList         


        

Answer 1

If you cannot create a map, so if you need to work with a list, you can check the previous value.

You can create a variable containing the previous value and check for that:

  ${type eq previousType ? '-same-' : type}

  

Or, you could use the index using the varStatus attribute:

  ${status.index gt 0 and types[status.index - 1] eq types[status.index] ? '-same-' : type}

Here you could also use not status.first instead of status.index gt 0.

Both will output:

fruit
-same-
vegetable