This site was built to compliment the existing NetSuite Professionals Slack Community by adding a means for members to easily find answers to common questions and to create a searchable database of those questions and answers.

NetSuite Professionals

Today on the developer blog I'm looking at a bug a few of you have asked me about over the years `Uncaught SyntaxError: Unexpected token u in JSON at position 0`
<https://developers.suitecommerce.com/til-thursday-troubleshooting-uncaught-syntaxerror-unexpected-token-u-in-json-at-position-0>

We had a nearly identical error msg when returning JSON from a suitelet. Turned out the suitelet was tacking on some HTML comments behind the JSON data. The fix ending up being `data = data.substring(0, '&lt;!--')` It's a bit of a hack, but it chops off the offending HTML.

Good article too! I ran into the `JSON.parse(JSON.stringify(stuff));` the hard way and scratched me head for a few hours before stumbling on the right answer.

&gt; The fix ending up being `data = data.substring(0, '&lt;!--')`
That is amazing. I'm not seen that one before

&gt; I ran into the `JSON.parse(JSON.stringify(stuff));`
I loved this when I found out about it. I was writing some hacky stuff to experiment with the application and really wanted to deeply copy a model but our `deepCopy()` utility function is explicitly set up to disallow this