Store and retrieve Codable objects in UserDefaults

Codable+UserDefaults.swift

func object<T: Codable>(_ type: T.Type, with key: String, usingDecoder decoder: JSONDecoder = JSONDecoder()) -> T? {
    guard let data = value(forKey: key) as? Data else { return nil }
    return try? decoder.decode(type.self, from: data)
}

func set<T: Codable>(object: T, forKey key: String, usingEncoder encoder: JSONEncoder = JSONEncoder()) {
    let data = try? encoder.encode(object)
    set(data, forKey: key)
}