Push custom event into a tag

[Anonymous]

_tcaq.push(['captureIdentity', '<value>', '<identity-type>']);

how do insert this custom event into a tag 

• <value> -this is a utag data

• <identity-type> -text

  i tried doing this through javascript extension but getting an error
• var x=b.customer_email;
  _tcaq.push(['captureIdentity',x, 'email'])

[BenStephenson]

What error are you getting, @Anonymous?

What scope does the JS extension have?

For the rest of the answer I'm goign to assume you're getting a _tcaq is not defined error, and you have scoped your extension to the tag that creates and uses the _tcaq object...

Extensions run before tags, so if your _tcaq object is created by code in a tag then it won't be declared when the extension runs.

It's usually best to declare the variable first, something like:

var _tcaq = _tcaq || [];

that will use the existing object if it exists, and create a new array object if not.

Or you could scope the JS extension to "after tags" which should mean the object has been created by the time the code runs.

[Anonymous · Accepted solution]

thats one error i corrected and the second is the to scope the extension to after tags .This solved my issue thanks