I have a question about variables initialization in swift. 

I have two ways to initialize a variable (as "property" of a class in Objective-C).

Which of them is the most correct?

```
class Class {

  var label: UILabel!

  init() { ... label = UILabel() ... }

}

```

or

```
class Class {

  var label = UILabel()

  init() { … }

}

```