EvolverSwiftUI

// Basic Types
let id: number = 5
let company: string = 'Traversy Media'
let isPublished: boolean = true
let x: any = 'Hello'

let ids: number[] = [1, 2, 3, 4, 5]
let arr: any[] = [1, true, 'Hello']

// Tuple

EvolverSwiftUI

Videos

• Introduction to Functional Programming Johannes Weiß - https://vimeo.com/100786088
• ReactiveCocoa at MobiDevDay Andrew Sardone - https://vimeo.com/65637501
• The Future Of ReactiveCocoa Justin Spahr-Summers - https://www.youtube.com/watch?v=ICNjRS2X8WM
• Enemy of the State Justin Spahr-Summers - https://www.youtube.com/watch?v=7AqXBuJOJkY
• WWDC 2014 Session 229 - Advanced iOS Application Architecture and Patterns Andy Matuschak - https://developer.apple.com/videos/play/wwdc2014/229/
• Functioning as a Functionalist Andy Matuschak - https://www.youtube.com/watch?v=rJosPrqBqrA
• Controlling Complexity in Swift Andy Matuschak - https://realm.io/news/andy-matuschak-controlling-complexity/

EvolverSwiftUI

#!/usr/bin/env bash

rm -rf "${HOME}/Library/Caches/CocoaPods"
rm -rf "`pwd`/Pods/"
pod update

EvolverSwiftUI

@main
struct BoxOfficeWidget: Widget {
    let kind: String = "BoxOfficeWidget"
    
    var body: some WidgetConfiguration {
        StaticConfiguration(kind: kind, provider: Provider()) { entry in
            BoxOfficeWidgetEntryView(entry: entry)
        }
        .configurationDisplayName("Box Office")
        .description("Box office collection of latest movies")

EvolverSwiftUI

import Foundation

func getFlightsList() -> [[String: Any]] {
    return [
        ["id":1001,
         "flightNumber": "AI323",
         "company": "Air India",
         "fare": 27637,
         "stops": 0,
         "departure":"06:30",

EvolverSwiftUI

import Foundation
import PerfectLib
import PerfectHTTP
import PerfectHTTPServer

class FlightsListController {

    func handleFlightsListRequest(request: HTTPRequest, response: HTTPResponse) {
        do {
            try response.setBody(json: getFlightsList())

EvolverSwiftUI

import Foundation
import PerfectLib
import PerfectHTTP
import PerfectHTTPServer

class FlightsDetailController {

    func handleFlightsDetailRequest(request: HTTPRequest, response: HTTPResponse) {
        do {
            guard let flightId: Int = Int(request.urlVariables["id"] ?? "") else {

EvolverSwiftUI

import Foundation
import PerfectLib
import PerfectHTTP
import PerfectHTTPServer

func setupRouter() -> Routes {
    var routes = Routes()
    
    routes.add(method: .get, uri: "/flights") { request, response in
        FlightsListController().handleFlightsListRequest(request: request, response: response)

EvolverSwiftUI

func urlSession(_ session: URLSession, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
        guard let serverTrust = challenge.protectionSpace.serverTrust else {
            completionHandler(.cancelAuthenticationChallenge, nil);
            return
        }
        
        let certificate = SecTrustGetCertificateAtIndex(serverTrust, 0)
        
        // SSL Policies for domain name check
        let policy = NSMutableArray()

EvolverSwiftUI

iOS Code Review Checklist

Avoid Type Inference
Prefer using Higher Order Functions
Write DRY code (Don’t Repeat Yourself)
Make sure that there are no force unwraps
Make sure that there are no retain cycles
Check if any deprecated API is being used
Check if any hardcoded checks (generally strings) can be changed to enum.
Prefer enum, switch over if else.