Nice way to get people to investigate an ES6 feature, though i think you should use camelCase for the function name, as it is javascript we are using :)

Resolving.

Could maybe add some additional tags, Mathematics, Numbers for example.

Also couple examples with the description, though maybe self explanatory you would be surprised how people still get confused e.g
5th root of 300 =====> 3.129...

As others have probably said the s3 things is very confusing, need to tweak the description with a correct example.

Interesting, i got there through trail and error, but managed to get it in the end.
Great kata.

Wow that last test really had me stumped, good kata.

This was an interesting kata, and i think quite a challenge. Think is worth the 5kyu.

Nice kata, took a while for me to get my head round this for some reason, also i like the last test on submission.

One point the sum for you last example in the instructions appears to be incorrect, should it not be 12384? Having wrong figures will make people a bit confused.

Thanks.