strjoinv
Joins an array of strings together to form one long string, with the optional @separator inserted between each of them.
If @str_array has no items, the return value will be an empty string. If @str_array contains a single item, @separator will not appear in the resulting string.
Return
a newly-allocated string containing all of the strings joined together, with @separator between them
Parameters
separator
a string to insert between each of the strings
strArray
an array of strings to join