This is something I&#x27;d wanted to do, and I&#x27;m glad someone else had the same idea. Lots of exciting possibilities.<p>Something important that needs doing is strictly defining the JavaScript subset used. As simple as possible, ideally, in keeping with the JSON spirit. This would mean you could then safely implement that subset in other languages. Imagine serialising a PHP function into λJSON and running it from JavaScript, or vice-versa!