if you attempt function checkThreeAndTwo(array) {
return true
} on node v8 it throws you stderr.

There is no ?? operator in code above

Changed node version to 18 and problem is solved

I have stderr even if function is primitive and return constant value

STDERR:
/home/codewarrior/index.js:42
(map, x) => map.set(x, (map.get(x) ?? 0) +

awesome kata

I like this kata. Thank you