Lol what? He used sort which is a built in function, also his solution is O(nlogn) when the optimal solution is O(n)

so use the reduce is optimial because O(n) ?

nice try

This is O(n logn). The optimal is O(n).

I basically created an extra variable for no reason. -______-
Great Job.

This is what I consider clever, not using the built in function.

same

So simply don't do it, duh. Leave it to the elementary students.

This isn't meant for you.

Not a suggestion.

Probably 9 kyu

Not an issue.

This kata is too easy. Suitable only for elementary students

This is only an exercise. I didn't rewrite a router from scratch, it only needed to work - and it does well!
You should explain why in real life no one should run callback in bind method instead of just writing that : this is not constructive.

You shouldn't run callack in bind method.