2016 Update

Task/Symmetric-difference/PowerShell/symmetric-difference.psh

@@ -0,0 +1,21 @@
+$A = @( "John"
+        "Bob"
+        "Mary"
+        "Serena" )
+
+$B = @( "Jim"
+        "Mary"
+        "John"
+        "Bob" )
+
+#  Full commandlet name and full parameter names
+Compare-Object -ReferenceObject $A -DifferenceObject $B
+
+#  Same commandlet using an alias and positional parameters
+Compare $A $B
+
+#  A - B
+Compare $A $B | Where SideIndicator -eq "<=" | Select -ExpandProperty InputObject
+
+#  B - A
+Compare $A $B | Where SideIndicator -eq "=>" | Select -ExpandProperty InputObject