The kata provides such pitiful test cases it does not generalize. For example, author solution fails in these cases:

• {"abc": -10000000000000000}
• {"abc": "10000000000000000 10000000000000000"}
• {"10000000000000000 ": 123}
• {"abc": 10000000000000000.123}
• {"abc": "\\t100\\10000000000000000}

Integer larger than or equal to 9000000000000000 is a big integer, for simplicity

This isn't tested, using Number.isSafeInteger also passes the tests.

expected { …(10) } to deeply equal { …(10) }

chai.config.truncateThreshold = 0 needs to be set in the tests.

No random tests