sho-ito-1027

import Foundation

struct Response: Decodable {
    let main: Main

    struct Main: Decodable {
        let sub: Sub

        struct Sub: Decodable {
            let a: UInt

sho-ito-1027

extension String {

    /// String[index]
    ///
    /// - Parameter i: Index of String
    public subscript(i: Int) -> String {
        let index = self.index(startIndex, offsetBy: i)
        return String(self[index])
    }

sho-ito-1027

// playground
var total: String = ""
for i: UInt8 in 0...255 {
    let data1: [UInt8] = [i]
    let value = Data.init(bytes: data1)
    let char = String.init(data: value, encoding: .utf8)

    if let char = char {
        total += char
    }

sho-ito-1027

import UIKit

enum PresentDestination {
    case viewControllerA
    case viewControllerB(content: Content)

    var viewController: UIViewController {
        switch self {
        case .viewControllerA:
            return ViewControllerA.initiateWithNavigation()

sho-ito-1027

// 1ファイルで両方書いてある場合、Build成功
// 1ファイル1Protocolで書いてある場合、Build失敗
protocol ViewProtocol: class {
    associatedtype Presenter: PresenterProtocol
    var presenter: Presenter! { get }
}

protocol PresenterProtocol: class {
    associatedtype View: ViewProtocol
    weak var view: View? { get }

sho-ito-1027

// Xcode 9.3.1のプロジェクト
// build時はiPhone 8 Plusを選択していた
// 

Akari% simulators --project SimTest9.3.xcodeproj --scheme SimTest9.3 --beforeClean true --devices iPhone SE,iPhone X,iPhone 9 Plus,iPhone 4s --osVersion 9.3,11.3
=== start ===
Build settings from command line:
    SDKROOT = iphonesimulator11.3

=== BUILD TARGET SimTest9.3 OF PROJECT SimTest9.3 WITH CONFIGURATION Debug ===

sho-ito-1027

999277% simulators --project HogeApp.xcodeproj --scheme HogeApp --beforeClean true --devices "iPhone X" --osVersion 11.2  --showBuildLog true
Build settings from command line:
    SDKROOT = iphonesimulator11.3

Build Preparation
Build task concurrency set to 2 via user default IDEBuildOperationMaxNumberOfConcurrentCompileTasks

=== BUILD TARGET HogeApp OF PROJECT HogeApp WITH CONFIGURATION Debug ===

Check dependencies

sho-ito-1027

import UIKit

final class CircleLineGraphView: UIView {
    private enum CircleType {
        case background
        case main(percentage: CGFloat)
    }
    private enum CircleAlignment {
        case outside
        case center

sho-ito-1027

import UIKit

let youtubeURLs: [String] = [
    "https://www.youtube.com/get_video_info?video_id=e0okrDbEsXM",
    "https://www.youtube.com/get_video_info?video_id=Dwh9hpBWtYQ",
    "https://www.youtube.com/get_video_info?video_id=aNyNLEoPx4k"//,
//    "https://www.youtube.com/get_video_info?video_id=mM5_T-F1Yn4",
//    "https://www.youtube.com/get_video_info?video_id=XYra2ovcWxE"
]

sho-ito-1027

final class ViewController: UIViewController {
    // MARK: - Private Property
    private var dependency: Int!

    // MARK: - Initilizer
    static func initiate(dependency: Int) -> ViewController {
        let viewController = UIStoryboard.instantiateInitialViewController(from: self)
        viewController.dependency = dependency
        return viewController
    }