Function: included()

Returns an Array of all items in one Array that are also contained within another Array.

Syntax

included(setA, setB)

Argument	Type	Description
setA	Array	An Array of values of any type.
setB	Array	An Array of values of any type.

Returns an Array of all items that are in setA that are also in setB.

included(["a","b","c"],["a", "c","f","d"])

Returns the Array ["a","c"].