title: Get length of array inside object
body: <p>i have the following object in javascript:</p>
  
  <p>objectX which is an </p>
  
  <pre><code>Object {names : Array[14]}
  </code></pre>
  
  <p>im trying to get the length of this, but it returns undefined when i use objectX.length?</p>
  
  <p>Im trying it in chrome debugger, and googling, anyone out there quickly let me know plz.</p>