DanielStormApps

extension String {
    
    /// Checks if the `String` is a valid email address.
    /// ````
    /// // Example
    /// "[email protected]".isValidEmailAddress() // true
    /// "name(at)email(dot)com".isValidEmailAddress() // false
    /// "name@email".isValidEmailAddress() // false
    /// "[email protected]".isValidEmailAddress() // false
    /// "name.com".isValidEmailAddress() // false

nicklockwood

// Swift's untyped errors are a goddam PiTA. Here's the pattern I use to try to work around this.
// The goal is basically to try to guarantee that every throwing function in the app throws an
// ApplicationError instead of some unknown error type. We can't actually enforce this statically
// But by following this convention we can simplify error handling

enum ApplicationError: Error, CustomStringConvertible {
    
  // These are application-specific errors that may need special treatment
  case specificError1
  case specificError2(SomeType)

JohnSundell

import UIKit

class OnboardingManager {
    private let userDefaults: UserDefaults

    init(userDefaults: UserDefaults = .standard) {
        self.userDefaults = userDefaults
    }

    func presentOnboardingControllerIfNeeded(in viewController: UIViewController) {

ignazioc

/*:
 ### Swift 3 @autoclosure
 */
import Cocoa

// Let's suppose this is complex funcion with lookup database etc.
func nextOrderNumber() -> Int {
    return 1000
}

rd13

    func copyDatabaseIfNeeded() {
        // Move database file from bundle to documents folder
        
        let fileManager = FileManager.default
        
        let documentsUrl = fileManager.urls(for: .documentDirectory,
                                                    in: .userDomainMask)
        
        guard documentsUrl.count != 0 else {
            return // Could not find documents URL

cabeca

#!/usr/bin/env ruby

device_types_output = `xcrun simctl list devicetypes`
device_types = device_types_output.scan /(.*) \((.*)\)/

runtimes_output = `xcrun simctl list runtimes`
runtimes = runtimes_output.scan /(.*) \(.*\) \((com.apple[^)]+)\)$/

devices_output = `xcrun simctl list devices`
devices = devices_output.scan /\s\s\s\s(.*) \(([^)]+)\) (.*)/

chriseidhof

//
//  main.swift
//  Routes
//
//  Created by Chris Eidhof on 17/08/14.
//  Copyright (c) 2014 Chris Eidhof. All rights reserved.
//

import Foundation