Bob Lee Course Part 2 (lessons 4 to 5)
Moving on with Bob's course. Like I said, I enjoyed the last part as it did help to explain optionals - even though he was waffly and not always clear. Still, going to crack on with the next one. Start Time - 19:28 Optional Chaining *This time I'm going to create an Xcode playground to code along with the lesson. let labelColor = UILabel (). highlightedTextColor ?. cgColor So this is an example of an optional in action. *I can just copy this from the course website - save some time! class Human { var name: String init (name: String ) { self . name = name } func sayHello() { print ( "Hello, I'm \ ( name )" ) } } class Apartment { var human : Human ? = nil } What we're showing in the Apartment class is that the human value is of the Human class but ...