Duggle ...

I've noticed it is possible to accumulate callbacks i.e it is possible to duplicate observers of a given object...(not useful).

Is it sufficient to delete an obsolete observer (LiveAPI() reference in a global array) by deleting the reference with myarray.pop()?

Is it even necessary to do this? Are the observers automatically cleaned up when the LiveAPI target no longer exists?

I've noticed it is possible to accumulate callbacks i.e it is possible to duplicate observers of a given object...(not useful).
Is it sufficient to delete an obsolete observer  (LiveAPI() reference in a global array) by deleting the reference with myarray.pop()?
Is it even necessary to do this? Are the observers automatically cleaned up when the LiveAPI target no longer exists? 

I've noticed it is possible to accumulate callbacks i.e it is possible to duplicate observers of a given object...(not useful).
Is it suffic

Lifetime of LiveAPI callback function