godrm

func makePascalTriangle(numOfRows: Int) -> ([[Int]]) {
    func getNextRow(_ arr: [Int]) -> [Int] {
        let a = zip([0]+arr, arr+[0])
        return a.map({
            (e: (Int, Int)) -> Int in
            e.0 + e.1
        })
    }
    
    func helper(_ countDown: Int, results: [[Int]]) -> (Int, [[Int]]) {

godrm

var x : Int? = 10
//arguments
func foo(arg : Int?) {
    guard let arg = arg else {
        return
    }
    print(arg)
}
foo(arg:x)

godrm

//
//  main.swift
//  HelloOperator
//
//  Created by JK on 09/04/2018.
//  Copyright © 2018 JK. All rights reserved.
//

import Foundation

godrm

//
//  MyCustomView.swift
//  CustomView
//
//  Created by JK on 12/04/2018.
//  Copyright © 2018 JK. All rights reserved.
//

import UIKit

godrm

//
//  ViewController.swift
//  HelloAnimation
//
//  Created by JK on 19/04/2018.
//  Copyright © 2018 JK. All rights reserved.
//

import UIKit

godrm

class Entity {
    var name : String = ""
    init(name : String) {
        self.name = name
    }
}

class Order {
    private (set) var id = UUID()
    private (set) var date = Date()

godrm

class Customer :
            Entity,
            AggregateProtocol
{
    private (set) var id : UUID
    private (set) var email : String
    private var orders : Array<Order>
    
    //...중간생략...
    

godrm

class Product {
    private var id = UUID()
    
}

class CustomOrderRequest {
    private (set) var products = [Product]()
}

protocol OrderCommand {

godrm

protocol CustomerRepositoryProtocol {
    
}

protocol ProductRepositoryProtocol {
    
}

struct ConversionRate {
    var fromCurrency : String

godrm

class CustomerOrderController {
    private (set) var orderService : OrderService
    
    init(service: OrderService) {
        self.orderService = service
    }
}