2016 Update

Task/Sort-using-a-custom-comparator/Elixir/sort-using-a-custom-comparator.elixir

@@ -0,0 +1,9 @@
+strs = ~w[this is a set of strings to sort This Is A Set Of Strings To Sort]
+
+comparator = fn s1,s2 -> if String.length(s1)==String.length(s2),
+                           do:   String.downcase(s1) <= String.downcase(s2),
+                           else: String.length(s1) >= String.length(s2) end
+IO.inspect Enum.sort(strs, comparator)
+
+# or
+IO.inspect Enum.sort_by(strs, fn str -> {-String.length(str), String.downcase(str)} end)