Returns the values unique to two arrays but are not in the intersection of them.
symmetricdifference( array1, array2, … )
array1: (Any Type Array) Array of values.
array2: (Any Type Array) Array of values.
Any Type Array
symmetricdifference({1, 2, 3, 4}, {3, 4, 5, 6})
returns 1, 2, 5, 6