Mrteller

import UIKit
extension UIColor {
    /**
     The rgba string representation of color with alpha of the form #RRGGBBAA/#RRGGBB.
     - parameter rgba: String value, which may or may not start from # sign.
     */
    
    public convenience init?(rgba: String, defaultAlpha: CGFloat = 1) {
        // We migth want to trim the string first from spaces, etc.
        let rgbaStripped = rgba.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)

Mrteller

func minsOf(pairs: [(Int, Int)]) -> (Int, Int) {
    return pairs.reduce((Int.max, Int.max)) {
        (($0.0 < $1.0) ? $0.0 : $1.0, (($0.1 < $1.1) ? $0.1 : $1.1))
    }
}

func maxsOf(pairs: [(Int, Int)]) -> (Int, Int) {
    return pairs.reduce((Int.min, Int.min)) {
        (($0.0 > $1.0) ? $0.0 : $1.0, (($0.1 > $1.1) ? $0.1 : $1.1))
    }