ॻ͚ΔΑʔʘʘ\\٩( 'ω' )و //ʗʗ """ class Hoge: NSObject { dynamic var value = 0 } let hoge = Hoge() let token = hoge.observe(\.value) { (object, change) in print(object.value) } KeyPathϦςϥϧͱΫϩʔδϟܕKVO
String { get } public init?(stringValue: String) public var intValue: Int? { get } public init?(intValue: Int) } CodingKeyʹkey໊ͱϓϩύςΟ໊ͷରԠΛ ΧελϚΠζͰ͖ΔI/F͕༻ҙ͞Ε͍ͯΔ