Bug in Js exercism test Windowing Systems

Invalid value given for a test. Instead of 0 for a width 80 is logged. I’m console logging right away. Task 4

This looks like you might have a bug in your Size class. How do you handle default values for new Size(0, 0) ?

hint: instead of testing for a truthy value, use the ?? operator

Oh I see, you’re right
This doesn’t work with 0’s.
Used default parameters instead and it’s working well. Thank you!