Extensions for Swift's UIFont Type.

UIFontExtensions.swift

import UIKit

extension UIFont {

    /// Prints all fonts that can be used with `UIFont(name:, size:)` to the console.
    static func printAllAvailableFontNames() {
        for familyName in UIFont.familyNames {
            print("\n\(familyName)")
            for fontName in UIFont.fontNames(forFamilyName: familyName) {
                print("\t- \(fontName)")
            }
        }
    }

}