Object Notation

I'm trying to get the value for a property of an item in a Webflow CMS Collection.

This is the JSON

[CleanShot 2021-06-27 at [email protected]]

Ho would I access created-on?
I first did a foreach on myvar.response.result.items as item
then I tried to access it via:

1) item.created-on
2) item['created-on']

and I still couldn't get it.

Tried looking at the documentation and couldn't find the answer.

Thanks!

Joe