How to test the data type of a variable

[Deac-33 Lancaster]

On Thursday, April 23, 2020 at 7:14:16 PM UTC-7, DL Neil wrote:
> ... Is there a way to see all of the groups?
> 
> Yes! Follow the link at the bottom of this email msg. Then follow the 
> link at the bottom of this list's web-page ...
> -- 
> Regards =dn

Sorry, I don't see the link.
-deac33