When Swift 4 went out and we finally had a chance to play with it in a playground, I began reading this article on Ray Wenderlich's site : https://www.raywenderlich.com/163857/whats-new-swift-4   I was particularly interested in this part about the new Codable protocol : [crayon-6629efd1b02ba526073707/] As you can see, it's a pretty interesting (and simple) way to convert a Codable into a String (a stringified version of a JSON dictionary).   I also read this article from Natasha-The-Robot's weekly newsletter : https://cur.at/hxKamEa?m=email&sid=QSej7qn This is interesting: the author creates a new protocol (Serializable) to let the Codable-conforming object encode itself to Data. [crayon-6629efd1b02c6334067555/]   Well, as far as I'm concerned, I often have to parse a JSON dictionary (a.k.a. a Dictionary<String, Any>), or create a JSON dictionary from an object, not a String or a Data. So, this is my implementation of this Serializable protocol idea : [crayon-6629efd1b02cb606590110/]   The JSONCodable protocol now has two required methods :

• a function allowing the Serializable-conforming object to convert itself a JSON