davidlawson

import UIKit

public class BadgeBarButtonItem: UIBarButtonItem
{
    @IBInspectable
    public var badgeNumber: Int = 0 {
        didSet {
            self.updateBadge()
        }
    }

rgcottrell

// NOTE: @schwa figured this out, but I'm claiming some of the credit for asking the question.
// See https://gist.github.com/schwa/ecd5f8c154e60fcb0f58 for the original solution.

// Playground - noun: a place where people can play

import Foundation

// Implementation (repeat as needed for number of parameters).

func unwrap<T1, T2>(p1: T1?, p2: T2?) -> (T1, T2)? {