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a bool variable could hold true or false, while bool? could be null as well.
Why would we need a third value for bool ?
If it is not true, what ever it is, it is == false
Can you suggest a scenario where I would fancy a bool? instead.
Thanks
Something can be true, false or undefined for many reasons. How would one answer “Is your third child a girl?” if one only has two children? Both true and false are incorrect. Null would be appropriate as saying that the comparison doesn’t apply.