Pointless

Another idiotic kata...

Too easy even for 8 kyu...

Фуууууууу читак ((

This is the stupidest kata i have ever seen

Best solution...

Are you crazy? -_-

Best practices ever

C = C > 9 probably it's something like carry flag. There are column addition like as

4 +
4

8`

you get just 8 and addition is over, but if you add

5 +
5

10

You add 5 + 5 and get 10, but you can write only one digit, the 0. You have to write 1 too.
But cycle is over because A and B arrays already empty. And result will be 0.
In this case you need check if you have reminder from adding.

C = C > 9 just check if number more 9. I.e C = 5 + 5, C = 10, and then C = 10 > 9, C = true.

In this case a script have to run more one cycle.
And C now is Boolean, true or false then C = C + (~~A.pop() + ~~B.pop()); considering as C = 1 + (number + number) or C = 0 + (number + number)
I.e true + 1 == 2 or true + 0 == 1

Oh it's little difficult even for me. But I hope you can understand basic idea.

~~ it's using for convert any value to integer. For example:

~~undefined = 0, ~~1.1 = 1, ~~"test" = 0 and even ~~null = 0 etc.

It's good hack if you don't want write various conditions such as

if (a != null || a != undefined) you just write c = ~~a and if variable is incorrect,
it's just return 0 in any case without any exception.

You forgot remove comment xD

I think that kata a bit of strong for 6 kuy, it's at least 5 kuy

It's too easy for 4 kyu, isn't?

It's so hard

KEK!