working through 15.13

cookbook/015/hodgepodge/app/controllers/list_controller.rb

@@ -0,0 +1,8 @@
+require 'sha1'
+
+class ListController < ApplicationController
+  def index
+    @list = [1, "string", :symbol, ['list']]
+  end
+
+end

cookbook/015/hodgepodge/app/helpers/list_helper.rb

@@ -0,0 +1,2 @@
+module ListHelper
+end

cookbook/015/hodgepodge/app/views/list/index.html.erb

@@ -0,0 +1,6 @@
+<ul style="font-family:monospace;">
+  <% @list.each_with_index do |item, i| %>
+      <li class="<%= i % 2 == 0 ? 'even' : 'odd' %>"><%= i %>:
+        <%= SHA1.new(item.id.to_s) %></li>
+  <% end %>
+</ul>