Json Serialize

protocol JsonSeriable {
    func map()->String
}



extension Int: JsonSeriable{
    func map() -> String {
        return String(self)
    }
}
extension String: JsonSeriable{
    func map() -> String {
        return #""\#(self)""#
    }
}

extension Array  : JsonSeriable where Element : JsonSeriable{
    func map() -> String {
        var res = "["
        for item in self{
            res.append( "\(item.map()),")
        }
        if self.count > 0 {
            res.removeLast()
        }
        res.append("]")
        return res
    }
}

extension Dictionary : JsonSeriable where Value : JsonSeriable, Key: JsonSeriable {
    func map() -> String {
        var res = "{"
        for (key, value) in self{
            res.append("\(key.map()):\(value.map())")
            res.append(",")
        }
        if self.count > 0 {
            res.removeLast()
        }
        res.append("}")
        return res
    }
}