wtf

Your coment is so fun!

• Still no random tests;
• Input can be manipulated.

did not know about it.

I will read it, thanks.

Why doesn't anyone immediately downvote this?

• trivial kata, adds nothing new to CW
• no random tests
• kata authoring guidelines

I didn't get what is the point of such long calculations that results 0 in </n*2-2+(1-1 + 2-2 + 3-3 + 4-4 + 5+6-11)/>?

that is very interesting

I imagined that I had to do this as well but this Kata accepts your solution if you just leave the 'rand' column on the final result as well.

it ain't pretty but it's honest work. haha

Hadouken!

Hadouken!!!

Hadouken!!!

How come I did not try that before?
By the way, is this really JS?

I don't think so. the group by conditions are different - there is no reusable logic here

I enjoyed the NULLIF inside COALESCE. Congrats!