Even if there was documentation on this it would be outdated now. Quickbase is trying their best to remove the ability for the average user to use JavaScript directly on a form or anywhere except for a code page. Things are in the process of changing right now so I would say many things are sort of "up in the air" at this time.
Now that they have started this they have created some examples showing how to utilize code pages better with JavaScript on their blog, which I always forget to check.
https://community.quickbase.com/blogs/graham-leto2/2021/03/02/code-page-samples?CommunityKey=d860b0f8-6a48-487b-b346-44c47a19a804Many of the things in here are just a collection of what the community has done in the past with code pages. I didn't see anything actually new here but there might be some hidden gem. It will definitely help if you are not familiar with using code pages.
