Exists
Revision as of 00:05, 3 December 2021 by 173.71.207.112 (talk) (Pointed toward DoesNotExist for testing whether aliases are filled. IME Exists doesn't work for this purpose.)
If you want to check whether an alias is filled, you probably want DoesNotExist instead.
This condition takes a reference as an argument. It returns 1.0 if the condition subject exists and if the subject and the argument are not the same object. Otherwise, the condition returns 0.0.