If you are using Nested Content or Stacked Content you might want the list of items to show the name of the picked item instead of just item1, item2 etc.
Well if you use this angular filter in the label for the item, it will get the name of the picked item for you so it looks better and so it saves you having to add a name or title field to your stacked content or nested content item just for display purposes.
{{ pickerAlias | ncNodeName }}On the left is pickerAlias, this is just the alias of the picker property on the stacked content or nested content item.
On the right is ncNodeName, this is just the angular filter name which goes off and gets the name of the picked item.
If you are using a multi node tree picker instead of a single picker, you could try this to get the name of the first item:
{{ pickerAlias[0] | ncNodeName }}