How to avoid implicit assignment of values to variables?

Question

Hi,
I'm using VB in Office 2019 under Windows 10. Is there a statement - like Option Explicit, Option Script etc - to enforce that the Visual-Basic-compiler doesn't assign values to variables by itself, e.g. 0 to an integer variable or False to a Boolean variable that appears on the right side of an assignment, but hadn't got a value by the algorithm before. I'd like to see an error message in this case. How can this be achieved?
Thanks for your help.
Michael

Answer 1

Using an uninitialized variable is a common programming error. By design VBA initializes declared variables to appropriate defaults for their types. There is no facility to change this behavior.