Script widget syntax

What is the correct way to use @{} in a script ?
Trying :

JS{{

var adrs = "/@{loop_nmbr}/test"
send(false, adrs)

}} 

Result :

OSC sent: { address: '/__VARS.VAR_999/test', args: [] }

https://openstagecontrol.ammd.net/docs/advanced-property-syntax/#javascript-js-code

In this context, @{} / OSC{} are seen as variables, not as the value they hold

This means you need to concatenate these strings manually:

var adrs = "/" + @{loop_nmbr} + "/test"

Thank’s for your helpful advices !