KrisYu

import Foundation

protocol Observer {
    var id: String { get }
    func update(_ string: String)
}

extension Observer {
    func update(_ string: String) {
        print("\(type(of: self)) に届いた新しい値は \(string) です。")

KrisYu

import Foundation

protocol Observer {
    var id: String { get }
    func update(_ string: String)
}

extension Observer {
    func update(_ string: String) {
        print("\(type(of: self)) に届いた新しい値は \(string) です。")

KrisYu

//
//  RW.swift
//  Web
//
//  Created by Mike Chirico on 10/15/15.
//  Copyright © 2015 Mike Chirico. All rights reserved.
//

import UIKit

KrisYu

let firstTodoEndpoint: String = "http://jsonplaceholder.typicode.com/todos/1"
let firstTodoUrlRequest = NSMutableURLRequest(URL: NSURL(string: firstTodoEndpoint)!) firstTodoUrlRequest.HTTPMethod = "DELETE"
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithRequest(firstTodoUrlRequest) { (data, response, error) in
guard let _ = data else {
    print("error calling DELETE on /todos/1")
return
}
  print("DELETE ok")

KrisYu

    func printData(){
        
        guard let path = NSBundle.mainBundle().pathForResource("contacts", ofType: "txt") else {
            print("Error while reading data")
            return
        }
        
        do {
            let content = try String(contentsOfFile: path, encoding: NSUTF8StringEncoding)
            print(content)

KrisYu

    func printData(){
        
        guard let path = NSBundle.mainBundle().pathForResource("contacts", ofType: "txt") else {
            print("Error while reading data")
            return
        }
        
        do {
            let content = try String(contentsOfFile: path, encoding: NSUTF8StringEncoding)
            print(content)