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Mohammad RehmanCourses Plus Student 2,416 Points
what is a bool?
what is a bool or boolyen
Ryan FieldCourses Plus Student 21,241 Points
A boolean, in programming in general, is a type of data that has only two possible values: true or false. It is often used to test whether certain conditions are true or false, based on which we can initiate other actions or code to complete our program's logic.
Caleb KleveterTreehouse Moderator 37,862 Points
BOOL is for you want to return true or false, here is a post you can read.