Created
September 30, 2014 22:50
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func applyKTimes<T>(f:(T) -> T, x:T, k:Int) -> T { | |
return k > 0 ? f(applyKTimes(f, x, k - 1)) : x | |
} | |
struct User { | |
var name:String? | |
var age:Int? | |
init(name:String?, age:Int?) { | |
self.name = name | |
self.age = age | |
} | |
init(kind:String, age:Int) { | |
self.name = "Suzuki" | |
self.age = 21 | |
} | |
} | |
var array = [User]() | |
array.append(User(name:"toshi", age:2)) | |
array.append(User(name:"akane", age:5)) | |
array.append(User(name:"konishi", age:13)) | |
array.append(User(name:"meg", age:9)) | |
let result = array.map{$0.name} | |
result | |
var dics = [[String: String?]]() | |
dics = [ | |
["name": "tanaka", "age": "23"], | |
["name": "akane", "age": "24"], | |
["name": "meg", "age": "21"], | |
["name": nil, "age": "25"], | |
] | |
var users = dics.map({ | |
(dic1) -> User in | |
var age = dic1["age"]??.toInt() | |
return User(name: dic1["name"]!, age: age) | |
}) | |
users | |
users[0].name! | |
users[1].name! | |
users[2].name! | |
users[0].age! | |
users[1].age! | |
users[2].age! |
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dic1["age"]??.toInt()とかすごく微妙だ。。