title: console.log in Backbone.js doesn't work
body: <p>I am a new learner of backbone.js and I tried to follow the hello world tutorial to just simply show a message on my screen. Following the tutorial video, I have a problem that the function console.log('hello world'); shows nothing. Here is my code:</p>
  
  <pre><code>&lt;!DOCTYPE HTML&gt;
  &lt;html&gt;
  &lt;head&gt;
    &lt;meta charset="UTF-8"&gt;
    &lt;title&gt; Learning about Bacjbone.js &lt;/title&gt;
  &lt;/head&gt;
  &lt;body&gt;
    &lt;script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js"&gt;&lt;/script&gt;
    &lt;script type="text/javascript" src="http://documentcloud.github.com/underscore/underscore-min.js"&gt;&lt;/script&gt;
    &lt;script type="text/javascript" src="http://documentcloud.github.com/backbone/backbone-min.js"&gt;&lt;/script&gt;
    &lt;script type="text/javascript"&gt;
  
      Person = Backbone.Model.extend({
        initialize: function() {
        console.log('hello world');
        }
      });
      var person = new Person();
    &lt;/script&gt;
  &lt;/body&gt;
  &lt;/html&gt;
  </code></pre>
  
  <p>Did I miss something or did something wrong? Please give me some idea. Thank you very much for your patient and any advises.</p>