September 2017 Update

Task/Menu/Ruby/menu.rb

@@ -1,23 +1,26 @@
-def select(prompt, items)
-  return "" if items.empty?
-  loop do
-    items.each_index {|i| puts "#{i}. #{items[i]}"}
-    print "#{prompt}: "
-    begin
-      answer = Integer(gets)
-    rescue ArgumentError
-      redo
+def select(prompt, items = [])
+  if items.empty?
+    ''
+  else
+    answer = -1
+    until (0...items.length).cover?(answer)
+      items.each_with_index {|i,j| puts "#{j}. #{i}"}
+      print "#{prompt}: "
+      begin
+        answer = Integer(gets)
+      rescue ArgumentError
+        redo
+      end
     end
-    return items[answer] if (0...items.length).cover?(answer)
+    items[answer]
   end
 end
 
 # test empty list
-response = select("Which is empty", [])
-puts "empty list returns: >#{response}<"
-puts
+response = select('Which is empty')
+puts "empty list returns: >#{response}<\n"
 
 # "real" test
 items = ['fee fie', 'huff and puff', 'mirror mirror', 'tick tock']
-response = select("Which is from the three pigs", items)
+response = select('Which is from the three pigs', items)
 puts "you chose: >#{response}<"