Google Sheet Cell Reference

Questions & Suggestions
1

How can I get the A1 notation of the current cell of a Google Sheet into KM variable? Example KM Variable=ADDRESS(ROW(),COLUMN())

2

To try again, is there a means to get the cursor's cell reference (i.e. A1 notation e.g. $H$3) of a Google Sheet into a KM variable?

3

Try doing a Google search on "google sheet cell reference JavaScript".
I found several pages there that may be of help.