item_id
The item_id is the number that corresponds to the information stored in the datastore.
Every time an item (a blog post, an audio file, a video, a soundcloud entry) is added to a profile, its given an 'item_id'.
You need the item_id to retrieve all the information about an item.
You will see the item_id in the url as a number on the item details page. For example for this blog post:
"Jamroom 5.3 Kickoff"
https://www.jamroom.net/the-jamroom-network/blog/74/jamroom-53-kickoff
The item id is
74 for the blog module. so if we looked in the datastore browser for the blog module in the
ACP
ACP -> MODULES -> PROFILES -> BLOG -> TOOLS -> DATASTORE BROWSER
and looked up #73 we would see all the information related to that blog post, its title, its url, its creator etc...
If your trying to locate what variables are available to you on in a template, the {debug} function is what your after:
Docs: "{debug}"
https://www.jamroom.net/the-jamroom-network/documentation/development/1477/debug