Hi Francesso,
You can not create an DOM id like that. The browser only allows you to set
the ID once, and it doesn't change anymore after that.
Your code will set the id to:
"a{{r}}"
Wich is a valid Id, but not really usable.
The best thing you can do is not rely on `id`'s in the first place. If you
need to interact with 3rth party things, use the data attribute instead,
and select on that.
Regards
Sander
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