News for hackers. Stuff that matters.
Re:Ask HN: Who is hiring? (June 2019) by random42 on Sunday June 23, 2019 @01:25PM (#20257121)
> other developers went through the assignment without any trouble way under 2 hours.

May be they did know immutable.js already, few may have even starred the project on github.

Re:Ask HN: Who is hiring? (June 2019) by doh on Sunday June 23, 2019 @01:35PM (#20257213)
We actually asked. None of them used immutable.js before, two heard about it in the past.