static String Join(<String> separator, <String> value)
Concatenates a specified separator String between each element of a specified String array, yielding a single concatenated string.
For example if separator is ", " and the elements of value are "apple", "orange", "grape", and "pear", Join(separator, value) returns "apple, orange, grape, pear".
Parameters
separator - A String. If separator is null, the empty string is used instead.
value - An array of String.
Return Values
A String consisting of the elements of value interspersed with the separator string.