function Concat (array : Array, optionalArray0 : Array, optionalArray1 : Array) : Array
Description
Concat joins two or more arrays. The method does not change the existing arrays
and returns a copy of the joined array
function Start () {
var arr = new Array ("Hello", "World");
var arr2 = new Array ("!");
var joined = arr.Concat(arr2);
print(joined);
}