This is at least 7 kyu. Better 6. Author should quit writing katas.

0ne 0f the best 6kuy katas.

I can't believe that he is teaching us to modify the built-in Array.prototype D:

cheater xDD

Bro wanted a unique solution. And I thought from scrolling that my screen is lagging
Also dont try to copy his code unless you wanna get page unresponsive.

i cant believe this

Boolean now cant be 0 or 1 seriously ? Since when that update happened in js.

Thanks. It was just a typo. Have a nice day;

Your solution has a bug, it is not a kata issue.

bro i cant belive you resolved your own request

I meant the explanation not author :D

Boy, that escalated quickly. In a direction it should not.

I would not say its 8kyu more like 7