title: how to stringify circular JSON object?
body: <p>Is there build-in method which can stringify a complex JSON object ?</p>
  
  <p>Every time i use JSON.stringfy I get this error: <strong>Converting circular structure to JSON</strong> , and also I need its parser</p>
  
  <p>this an image of my object
  <a href="http://imgur.com/s3HbdtQ" rel="nofollow">http://imgur.com/s3HbdtQ</a></p>