Purpose of using sub routines over functions

Question

I\'ve been working with Access for a while now, and although I understand the obvious benefit of a Function over a Sub, been that it can return values as a result, I\'m not sure

Answer 1

You will note that events are always subs, never functions. However, in MS Access, it can be useful to create functions when you wish to use them as the property of an event:

On Close: = MyCloseFunction()

Subs can return a value ByRef.