$listUnique[list;separator?]
The list with every item only once.
Values
separator- Optional. The character between the items, a comma if empty.
Example
$listUnique[a,b,a,c,b]a,b,c
$listUnique[list;separator?]The list with every item only once.
separator$listUnique[a,b,a,c,b]a,b,c