empty array has '__proto_' key
<p>So I have this </p>

<pre><code>(function($) {
  var App= {
    test: []
  }
  console.log(App.test); //returns: &gt;&gt; [index: function, has: function]
  ...
}(jQuery))
</code></pre>

<p>Can anyone tell me why those keys are being added? Upon expansion, chrome shows it as the '<strong>proto</strong>' key</p>

<p>edit: syntax errors</p>
