Although there are similar data structures, not all of them are supersets nor subsets of the data structures of JSON. For example, some data types that JSON lac

Although there are similar data structures, not all of them are supersets nor subsets of the data structures of JSON. For example, some data types that JSON lacks are: - Integers (including 64-bit integers and longer) - Non-finite floating point (Infinity, NaN) - Keys of types other than strings - Non-Unicode strings (e.g. byte sequences, TRON code, etc) - Date/time - Links Additionally, they may differ of whether or not the order of keys should be retained.