Getting Key from a For loop with a List (not a Map)

playframework-2.0, scala

Solution

You can zip the list with its indices:

@defining(List("foo", "bar", "baz")) { items => 
  @for((item, i) <- items.zipWithIndex if i % 2 == 0) {
    @item no @i <br/>
  }
}

Which prints:

foo no 0 
baz no 2

Problem

I have a List of Models (List items) that I loop over in my template : ``` @for(item <- items) { // ... } ``` I'd like to get the key/index position of the `item` in `items` for two reasons : - I will show something like `Item n° @key` - I'd like to show only 1/2 items (I suppose : `if (@key % 2)`) How can I get the key/index if using a List and not a Map ? Thanks for your help

Original source