@-Operator for compound item name

[Oliver2 (Oliver)]

Yannick introduced an @ operator shortly:
https://community.openhab.org/t/any-documentation-around-for-valid-javascript-in-expressions-in-widgets/139658/6
It replaces

items['ItemName'].displayState || items['ItemName'].state

with

@'ItemName'

How does that work for a compound item name in an oh-repeater like

items[loop.r + "_Temperatur"]

[crnjan]

@(loop.r + "_Temperatur")

[JustinG]

@(expression) should work.