The result of te conversion of the array on the documentation is:
// => ‘42,true,abc’
and should be:
// => ‘42,null,true,abc’
JavaScript key concepts on Exercism
File that need asjustment:
[javascript/exercises/concept/lucky-numbers/.docs/introduction.md at main · exercism/javascript · GitHub]
(https://github.com/exercism/javascript/blob/main/exercises/concept/lucky-numbers/.docs/introduction.md)
Example: