#SwiftyInfo — What in the world is ARC? — Part 1

swiftyinfo-arc-3

class Person {
    let name: String
    
    init(name: String) {
        self.name = name
    }
}

var person1: Person? = Person(name: "John")

var person1A = person1
var person1B = person1

person1 = nil
person1A = nil
person1B = nil