JSON rules jsonlint is very limited in configuration. Blank line¶ No blank lines allowed. Before { "foo": "bar", "baz": "qux" } After { "foo": "bar", "baz": "qux" } Trailing comma¶ No trailing commas in JSON5 files. Before { "foo": "bar", } After { "foo": "bar" } Comment¶ No comments allowed in JSONC files. Before { // This is a comment. "foo": "bar" } After { "foo": "bar" }