Primitive type boolean
The primitive type of Boolean values: either true or false.
Predicates
| booleanAnd | Returns the boolean and of the receiver and the argument |
| booleanNot | Returns the negation of the receiver |
| booleanOr | Returns the boolean or of the receiver and the argument |
| booleanXor | Returns the boolean exclusive or of the receiver and the argument |
| toString | Returns either “true” or “false” |