RE: Hack for JSON sequences with trailing commas?

[Drew Adams]

> JSON is a very limited subset of Javascript notation for literals. Many
> things that are allowed in Javascript source code are not allowed in
> JSON. The reason is presumably to simplify the design of JSON parsers --
> they don't have to deal with all possible input formats.

Yes, but there is a difference between JSON as defined by its standard
and JSON as it is used in practice in many situations. The former is more
strict than the latter.

Here is one description of possible differences between the strict syntax
of the standard and a lax syntax (one that does allow an extra, final comma):

https://docs.oracle.com/en/database/oracle/oracle-database/18/adjsn/conditions-is-json-and-is-not-json.html#GUID-1B6CFFBE-85FE-41DD-BA14-DD1DE73EAB20