el-hoshino

import Foundation

let candidates = ["ガルパン", "は", "いい", "ぞ"]
var createdPhrase = [String](count: candidates.count, repeatedValue: "")

for i in 0 ..< Int.max {
    if createdPhrase != candidates {
        let randomNumber = Int(arc4random_uniform(UInt32(candidates.count)))
        let nextWord = candidates[randomNumber]
        print(nextWord)

el-hoshino

let array = [Int](0 ..< 10000)
let number = array[1000] // number = 1000

el-hoshino

let hexString = "FF"
var hex:UInt32 = 0x0
let scanner:NSScanner = NSScanner(string: hexString)
scanner.scanHexInt(&hex)

print(hex) //255

el-hoshino

import UIKit

protocol TestModelDelegate {
    func display(something: NSObject)
}

class TestModel: NSObject {

    var displayedString: String
    var delegate: TestModelDelegate?

el-hoshino

let a = 1
0 ..< 10 ~= a // true

el-hoshino

func getByteArrayFromImage(imageRef: CGImageRef) -> [UInt8] {

    let data = CGDataProviderCopyData(CGImageGetDataProvider(imageRef))
    let length = CFDataGetLength(data)
    var rawData = [UInt8](count: length, repeatedValue: 0)
    CFDataGetBytes(data, CFRange(location: 0, length: length), &rawData)

    return rawData

}

el-hoshino

let dict = [1: 2, 3: 4]
let key = 1

if let value = dict[key] {
    print(value)
}

el-hoshino

import UIKit

class CallbackButton: UIButton {

    private var action: (() -> Void)?

    init(frame: CGRect, action: (() -> Void)? = nil) {

        self.action = action

el-hoshino

let a = 0
switch a {
case Int.min ..< 0:
    print("負数")

case 0:
    print("零")

case 1 ... Int.max:
    print("正数")

el-hoshino

class ViewController: UIViewController {

    var settings: UserSettings

    init() {
        self.settings = UserSettings(a: 0, b: false, c: "NO")

        super.init(nibName: nil, bundle: nil)
    }