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Convert to Swift 4 #8

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Nov 6, 2017
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Nov 6, 2017
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120 changes: 59 additions & 61 deletions Chapter2/Session2.playground/Contents.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -17,8 +17,7 @@ let name:String = "Seongkwan"
var greeting = "Hello"
greeting += " " + name

let characters = name.characters
let count = characters.count
let count = name.count

let url = "www.codershigh.com"
let hasProtocol:Bool = url.hasPrefix("http://")
Expand Down Expand Up @@ -94,7 +93,7 @@ roomCapacity["Kahlo"]
let roomNames = [String](roomCapacity.keys)
let capacities = [Int](roomCapacity.values)

let total = capacities.reduce(0, combine: +)
let total = capacities.reduce(0, +)

//: Session 2-6 컬렉션2 Set
let subway2 :Set = ["시청", "을지로입구", "을지로3가", "을지로4가","동대문역사문화공원", "신당", "상왕십리", "왕십리", "한양대", "뚝섬", "성수", "건대입구", "구의", "강변", "잠실나루", "잠실", "신천", "종합운동장", "삼성", "선릉", "역삼", "강남", "교대", "서초", "방배", "사당", "낙성대", "서울대입구", "봉천", "신림", "신대방", "구로디지털단지", "대림", "신도림", "문래", "영등포구청", "당산", "합정", "홍대입구", "신촌", "이대", "아현", "충정로"]
Expand All @@ -103,14 +102,14 @@ subway2.count
let subway3 :Set = ["지축", "구파발", "연신내", "불광", "녹번", "홍제", "무악재", "독립문", "경복궁", "안국", "종로3가", "을지로3가", "충무로", "동대입구", "약수", "금호", "옥수", "압구정", "신사", "잠원", "고속터미널", "교대", "남부터미널", "양재", "매봉", "도곡", "대치", "학여울", "대청", "일원", "수서", "가락시장", "경찰병원", "오금"]
subway3.count

let transfer = subway2.intersect(subway3)
let transfer = subway2.intersection(subway3)
transfer.count
let notTransfer = subway2.subtract(subway3)
let notTransfer = subway2.subtracting(subway3)
notTransfer.count

let union = subway2.union(subway3)
union.count
let exOR = subway2.exclusiveOr(subway3)
let exOR = subway2.symmetricDifference(subway3)
exOR.count

if transfer.count > 0 {
Expand Down Expand Up @@ -206,7 +205,7 @@ func ratingRecord (history:[Double]) -> (average:Double, min:Double, max:Double)
ratings = [3.5, 2.0, 4.5, 5.0]
bookDescription = "\(title)"

if let theRatings = ratings , record = ratingRecord(theRatings) {
if let theRatings = ratings , let record = ratingRecord(history: theRatings) {
bookDescription += " has \(theRatings.count) ratings, \r\n average is \(record.average), from \(record.min) to \(record.max)"
} else {
bookDescription += " has no ratings yet"
Expand All @@ -216,48 +215,48 @@ if let theRatings = ratings , record = ratingRecord(theRatings) {
bookDescription

/*
1. record의 Type을 명시하시오
2. ratings = [] 일때 문제 해결 방식 고민
*/
1. record의 Type을 명시하시오
2. ratings = [] 일때 문제 해결 방식 고민
*/
//: Session 2-12 Structure

_={

struct Task {
var title:String//?
var time:Int?
}

var callTask = Task(title: "Call to Randy", time: 10*60)
//var reportTask = Task()
var reportTask = Task(title:"Report to Boss", time: nil)

var todayTask:[Task] = []
todayTask += [callTask, reportTask]
todayTask[1].time = 15*60

callTask.title = "Call to Toby"
print("today task = \(todayTask) \r\n callTask = \(callTask)")
struct Task {
var title:String//?
var time:Int?
}
var callTask = Task(title: "Call to Randy", time: 10*60)
//var reportTask = Task()
let reportTask = Task(title:"Report to Boss", time: nil)
var todayTask:[Task] = []
todayTask += [callTask, reportTask]
todayTask[1].time = 15*60
callTask.title = "Call to Toby"
print("today task = \(todayTask) \r\n callTask = \(callTask)")

}

//: Session 2-13 Class
_={

class Employee {
var name:String?
var phoneNumber:String?
var boss:Employee?
}

struct Task {
var title:String
var time:Int?
class Employee {
var name:String?
var phoneNumber:String?
var boss:Employee?
}

struct Task {
var title:String
var time:Int?

var owner:Employee
var participant:Employee?
}

var owner:Employee
var participant:Employee?
}

let me:Employee = Employee()
me.name = "Alex"
me.phoneNumber = "010-1234-5678"
Expand All @@ -266,8 +265,8 @@ struct Task {
toby.name = "Toby"
toby.phoneNumber = "011-5678-1234"

var callTask = Task(title: "Call to Toby", time: 10*60, owner:me, participant:toby)
var reportTask = Task(title:"Report to Boss", time: nil, owner:me, participant:nil)
let callTask = Task(title: "Call to Toby", time: 10*60, owner:me, participant:toby)
let reportTask = Task(title:"Report to Boss", time: nil, owner:me, participant:nil)
callTask.participant?.phoneNumber = "010-5678-1234"

var todayTask:[Task] = []
Expand Down Expand Up @@ -327,8 +326,8 @@ _={
toby.name = "Toby"
toby.phoneNumber = "011-5678-1234"

var callTask = Task(title: "Call to Toby", time: 10*60, owner:me, participant:toby, type:.Call)
var reportTask = Task(title:"Report to Boss", time: nil, owner:me, participant:nil, type:Task.TaskType.Report)
let callTask = Task(title: "Call to Toby", time: 10*60, owner:me, participant:toby, type:.Call)
let reportTask = Task(title:"Report to Boss", time: nil, owner:me, participant:nil, type:Task.TaskType.Report)

callTask.participant?.phoneNumber = "010-5678-1234"

Expand Down Expand Up @@ -404,7 +403,7 @@ _={

var callTask = Task(type:.Call, owner:me)
callTask.time = 10*60
var reportTask = Task(type:.Report, owner:me)
let reportTask = Task(type:.Report, owner:me)

callTask.participant?.phoneNumber = "010-5678-1234"

Expand All @@ -431,15 +430,15 @@ _={

func report() {
if let myBoss = boss {
print("\(self.name) reported to \(myBoss.name)")
print("\(String(describing: self.name)) reported to \(String(describing: myBoss.name))")
} else {
print("\(name) don't have boss")
print("\(String(describing: name)) don't have boss")
}
}

func callTaskToBoss() -> Task? {
if let myBoss = boss, callTo = myBoss.phoneNumber {
var callTask = Task(type: .Call, owner: self)
if let myBoss = boss, let _ = myBoss.phoneNumber {
let callTask = Task(type: .Call, owner: self)
return callTask
}
return nil
Expand Down Expand Up @@ -498,9 +497,9 @@ _={
me.boss = toby
me.report()

var reportTask = Task(type:.Report, owner:me)
let reportTask = Task(type:.Report, owner:me)
todayTask += [reportTask]

if let callTask = me.callTaskToBoss() {
todayTask += [callTask]
}
Expand Down Expand Up @@ -532,15 +531,15 @@ _={

func report() {
if let myBoss = boss {
print("\(self.name) reported to \(myBoss.name)")
print("\(String(describing: self.name)) reported to \(String(describing: myBoss.name))")
} else {
print("\(name) don't have boss")
print("\(String(describing: name)) don't have boss")
}
}

func callTaskToBoss() -> Task? {
if let myBoss = boss, callTo = myBoss.phoneNumber {
var callTask = Task(type: .Call(number:callTo), owner: self)
if let myBoss = boss, let callTo = myBoss.phoneNumber {
let callTask = Task(type: .Call(number:callTo), owner: self)
return callTask
}
return nil
Expand Down Expand Up @@ -592,15 +591,13 @@ _={
let taskDescription:String
switch type {
case .Call(let number) :
taskDescription = "\(owner.name) make a call to \(number)"
taskDescription = "\(String(describing: owner.name)) make a call to \(number)"
case .Report(let receiver, let time) :
taskDescription = "\(owner.name) report to \(receiver.name) at \(time)"
taskDescription = "\(String(describing: owner.name)) report to \(String(describing: receiver.name)) at \(time)"
case .Meet(let participant, let location) :
taskDescription = "\(owner.name) meet \(participant.name) at \(location)"
taskDescription = "\(String(describing: owner.name)) meet \(String(describing: participant.name)) at \(location)"
case .Support(let taskOwner, let duration) :
taskDescription = "\(owner.name) support \(taskOwner.name) for \(duration) days"
default:
taskDescription = "Need more information for task."
taskDescription = "\(String(describing: owner.name)) support \(String(describing: taskOwner.name)) for \(duration) days"
}
return taskDescription
}
Expand All @@ -616,7 +613,7 @@ _={
me.boss = toby
me.report()

var reportTask = Task(type:.Report(to:toby, when:"Afternoon"), owner:me)
let reportTask = Task(type:.Report(to:toby, when:"Afternoon"), owner:me)
todayTask += [reportTask]

if let callTask = me.callTaskToBoss() {
Expand All @@ -627,3 +624,4 @@ _={
reportTask.doBasicTask()
}


7 changes: 7 additions & 0 deletions Chapter2/Session2.playground/playground.xcworkspace/contents.xcworkspacedata
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14 changes: 7 additions & 7 deletions Chapter2/Session2.playground/timeline.xctimeline
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Original file line number Diff line number Diff line change
Expand Up @@ -3,39 +3,39 @@
version = "3.0">
<TimelineItems>
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lockedSize = "{854, 155}"
selectedRepresentationIndex = "1"
shouldTrackSuperviewWidth = "NO">
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documentLocation = "#CharacterRangeLen=27&amp;CharacterRangeLoc=4177&amp;EndingColumnNumber=28&amp;EndingLineNumber=171&amp;StartingColumnNumber=1&amp;StartingLineNumber=171&amp;Timestamp=475640757.418873"
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selectedRepresentationIndex = "0"
shouldTrackSuperviewWidth = "NO">
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documentLocation = "#CharacterRangeLen=15&amp;CharacterRangeLoc=5347&amp;EndingColumnNumber=16&amp;EndingLineNumber=220&amp;StartingColumnNumber=1&amp;StartingLineNumber=220&amp;Timestamp=475651555.904134"
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selectedRepresentationIndex = "1"
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Expand Down
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