github.com/aloisdg/awesome-regex

Nice one! where can I learn about this kinds regex

This returns true with a bad pw of input "fjd3IR9.;"
Will incorrectly approve it.

You just need to remember the concept, not actual giberish of metacaracters :D. I got from this (use positive lookaheads) with stuff you need to check on. DONE.

Ah thank you! I see my mistake now =D

If the actual object field was called name you could use either obj['name'] or obj.name. However, name is a variable that represents some other value in this case.

Can someone please explain why obj[name] works here, but obj.name does not?

I thought an object could use either syntax.

Thanks, for pointing this out. Typo.

It's tagged mudolo; I think you meant modulo.
The sample test case uses expect which returns tests for a boolean, which should pass most things (I'm not sure if this is a conscious design choice, forcing the user to look up and make their own tests).
Otherwise, a good kata, and should be brought out of beta