Swift 3 - How to write functions with no initialisers like the new UIColors?

Question

In previous versions of swift, you would get the colour white like this UIColor.whiteColor()

However, in Swift 3, you get the colour white without initi

Answer 1

They are properties, not functions.

import UIKit

extension UIColor {
  // Read-only computed property allows you to omit the get keyword
  static var custom: UIColor { return UIColor(white: 0.5, alpha: 1) }
}