Generic Instance Method 総称体インスタンスメソッド

decodeIfPresent(_:forKey:)

No overview available.

Declaration 宣言 

func decodeIfPresent<T>(_ type: T.Type, forKey key: Self.Key) throws -> T? where T : Decodable

See Also 参照

KeyedDecodingContainerProtocol Implementations KeyedDecodingContainerProtocol 実装

func decodeIfPresent(String.Type, forKey: Self.Key) -> String?
func decodeIfPresent(Bool.Type, forKey: Self.Key) -> Bool?
func decodeIfPresent(Double.Type, forKey: Self.Key) -> Double?
func decodeIfPresent(Float.Type, forKey: Self.Key) -> Float?
func decodeIfPresent(Int.Type, forKey: Self.Key) -> Int?
func decodeIfPresent(UInt.Type, forKey: Self.Key) -> UInt?
func decodeIfPresent(Int8.Type, forKey: Self.Key) -> Int8?
func decodeIfPresent(Int16.Type, forKey: Self.Key) -> Int16?
func decodeIfPresent(Int32.Type, forKey: Self.Key) -> Int32?
func decodeIfPresent(Int64.Type, forKey: Self.Key) -> Int64?
func decodeIfPresent(UInt8.Type, forKey: Self.Key) -> UInt8?
func decodeIfPresent(UInt16.Type, forKey: Self.Key) -> UInt16?
func decodeIfPresent(UInt32.Type, forKey: Self.Key) -> UInt32?
func decodeIfPresent(UInt64.Type, forKey: Self.Key) -> UInt64?