[Swift] 제네릭 (Generics)

import UIKit


struct MyArray<SomeElement>{ //보통 SomeElement 자리에 T를 넣음 "Type"
    // 제네릭을 담은 빈 배열
    var elements : [SomeElement] = [SomeElement]()
    
    //생성자
    init(_ elements: [SomeElement]){
        self.elements = elements
    }
}

struct Friend {
    var name: String
}

struct Coder {
    var name: String
}

var mySomeArray = MyArray([1,2,3])
print("mySomeArray : \(mySomeArray)")

var myStringArray = MyArray(["가","나","다"])
print("myStringArray : \(myStringArray)")

let friend_01 = Friend(name: "철수")
let friend_02 = Friend(name: "영희")
let friend_03 = Friend(name: "수진")

var myFriendArray = MyArray([friend_01, friend_02, friend_03])
print("\(myFriendArray)")

출력결과

mySomeArray : MyArray<Int>(elements: [1, 2, 3])
myStringArray : MyArray<String>(elements: ["가", "나", "다"])
MyArray<Friend>(elements: [__lldb_expr_58.Friend(name: "철수"), __lldb_expr_58.Friend(name: "영희"), __lldb_expr_58.Friend(name: "수진")])