Command Reference : String and Date Function Reference
Syntax: @wunion(str_list1, str_list2)
Argument 1: string list, str_list1
Argument 2: string list, str_list2
Return: string list
Returns the union of str_list1 and str_list2. This function is case-sensitive.
@wunion("ABC DEF", "ABC G H def")
returns the string “ABC DEF G H def”. Each new element is added to the string list, skipping elements that have already been added to the list.
See also @wintersect.