Evaluate Bool property of optional object in if statement

Question

I am looking for a way to evaluate a Swift Bool concisely in a single if statement, when the Bool is the property of an optional objec

Answer 1

Ah, found it:

if objectWithBool?.bool == true {
    // objectWithBool != nil && bool == true
} else {
    // objectWithBool == nil || bool == false
}

The optional chaining expression objectWithBool?.bool returns an optional Bool. Since it is optional, that expression alone in the if statement would be evaluated to true/false based on whether the optional contains a value or not.

By using the == operator the if statement checks the optional's value, which in this case can be true, false, or nil.