<% content_for(:head) do %>
Lazy Primes
<%= stylesheet_link_tag("demos/primes") %>
<%= javascript_include_tag("lib/lazy.min") %>
<%= javascript_include_tag("demos/primes") %>
<% end %>
<% content_for(:body) do %>
There is a <script> tag on this page that uses Lazy.generate to
define a Lazy.GeneratedSequence that computes prime numbers. It is currently
iterating over this sequence asynchronously using #async().