Clear an optional variable in Swift

Question

If I declare an empty image:

var myImage: UIImage?

and then give it a value:

myImage = UIImage(named: "drawing.png")

how can I later remove that value, returning it to its original empty state?

Answer 1

var myImage: UIImage?

Is basically short hand for making a UIImage point to nil automatically.

So to reset it back to the original value say:

myImage = nil

Answer 2

Set its value back to nil like this

myImage = nil