2016 Update

Task/Collections/Elixir/collections-5.elixir

@@ -1,3 +1,10 @@
-map = %{:a => 1, :b => 2}       #=> %{a: 1, b: 2}
-map.a                           #=> 1
-%{map | :a => 2}                #=> %{a: 2, b: 2}
+empty_set = MapSet.new                  #=> #MapSet<[]>
+set1 = MapSet.new(1..4)                 #=> #MapSet<[1, 2, 3, 4]>
+MapSet.size(set1)                       #=> 4
+MapSet.member?(set1,3)                  #=> true
+MapSet.put(set1,9)                      #=> #MapSet<[1, 2, 3, 4, 9]>
+set2 = MapSet.new([6,4,2,0])            #=> #MapSet<[0, 2, 4, 6]>
+MapSet.union(set1,set2)                 #=> #MapSet<[0, 1, 2, 3, 4, 6]>
+MapSet.intersection(set1,set2)          #=> #MapSet<[2, 4]>
+MapSet.difference(set1,set2)            #=> #MapSet<[1, 3]>
+MapSet.subset?(set1,set2)               #=> false