L13></a></span></code></pre></div>
<p>In this route we've <a href="http://en.wikipedia.org/wiki/Separation_of_concerns">separated our concerns</a>:
The action <code>displayAlert</code> contains the code that is called when the action is
received, and the private function <code>_displayAlert</code> performs the work. While not
necessarily obvious here because of the small size of the functions, separating
code into smaller chunks (or "concerns") allows it to be more readily isolated
for testing, which in tur