Clarify keyword list as options example by including else clause

2016-06-13 09:30:43 -05:00
parent 8ccd83677e
commit e522836f09
2 changed files with 7 additions and 2 deletions
--- a/lib/koans/08_keyword_lists.ex
+++ b/lib/koans/08_keyword_lists.ex
@@ -34,9 +34,14 @@ defmodule KeywordLists do

  koan "Conveniently keyword lists can be used for function options" do
    transform = fn str, opts ->
-      if opts[:upcase], do: String.upcase(str)
+      if opts[:upcase] do
+        String.upcase(str)
+      else
+        str
+      end
    end

    assert transform.("good", upcase: true) == ___
+    assert transform.("good", upcase: false) == ___
  end
 end