title: typeof(function.arguments) is object
body: <p>Let we have a simple function</p>
  
  <pre><code>make=function(){ }
  </code></pre>
  
  <p>Why when we trying to display <code>alert(Object.getOwnPropertyNames(make.arguments));</code> we have an error</p>
  
  <pre><code>[18:33:06.588] TypeError: make.arguments is not an object @ http://fiddle.jshell.net/_display/:28
  </code></pre>
  
  <p>but </p>
  
  <pre><code>alert(typeof(make.arguments));
  </code></pre>
  
  <p>displays <code>object</code>?</p>