title: Single JSON with array that contains other JSON
body: <p>I'm in trouble with JSON objects.
  I have to create a JSN like this:</p>
  
  <pre><code>{
   name: 'root',
   children: [
       name: 'son1',
       children: [....]
   ]
  }
  </code></pre>
  
  <p>How can I build it using Javascript?
  Thanks in advance.</p>