cwagdev

func luhnCheck(number: String) -> Bool {
    var sum = 0
    let digitStrings = reverse(number).map { String($0) }
    
    for tuple in enumerate(digitStrings) {
        if let digit = tuple.element.toInt() {
            let odd = tuple.index % 2 == 1
            
            switch (odd, digit) {
            case (true, 9):

ValCanBuild

platform :ios, '9.0'
use_frameworks!

$rxVersion = '~> 2.2.0'

target 'MyProject' do
	pod 'RxSwift', $rxVersion
	pod 'RxCocoa', $rxVersion
end

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

jakebromberg

import AVFoundation
import Foundation

extension FileManager {
    func removeFileIfNecessary(at url: URL) throws {
        guard fileExists(atPath: url.path) else {
            return
        }

        do {

Deub27

import UIKit

extension UIStackView {
    
    func removeAllArrangedSubviews() {
        
        let removedSubviews = arrangedSubviews.reduce([]) { (allSubviews, subview) -> [UIView] in
            self.removeArrangedSubview(subview)
            return allSubviews + [subview]
        }

lengocgiang

# addSubview
UIView.transition(with: self.view, duration: 0.25, options: [.transitionCrossDissolve], animations: {
  self.view.addSubview(view)
}, completion: nil)

# removeFromSuperview
UIView.transition(with: self.view, duration: 0.25, options: [.transitionCrossDissolve], animations: {
  subview.removeFromSuperview()
}, completion: nil)