title: How to serialize a JavaScript associative array?
body: <p>I need to serialize an associative JavaScript array.
  It's a simple form of products and a numeric values, but just after building the array seems empty.</p>
  
  <p>The code is here: <a href="http://jsbin.com/usupi6/4/edit" rel="nofollow">http://jsbin.com/usupi6/4/edit</a></p>