Maybe your code is wrong?

im having the smae problem

You can read the WikiPedia page.

Good luck

You are right. I should be read information about digital root.
Take my apologize.

You never return -9. Read the definition of digital root.

May I suggest that you do some easier Kata's first and the when you are ready come here ?

As for adding exceptions or changing description, that is not my area, for that you will need to talk to author (which is impossible since he deleted his account). I only created the C++ and C translations and not the Kata itself.

So.
Or we need some exception for negative(minus) numbers or specife task. For example: "return -9 for non natural numbers".

I Authored the C++ translation and I can assure you there are no mistakes in it.

But anyway rechecking with other versions :

• first test case should be 0
• second should be 0
• third should be 0

So yes, it is a mistake on your part and not mine :)

hint :Read the description again

Instead of posting a new one, post a reply to the previous using the reply button.

It is an error on your end. Too much recursion is casuing it to give a stack overflow error

language :javascript
error :stack overflow/exceeded

What language ?

And what error does it show ?

I passed all the sample tests --> but when trying to attempt it shows an error despite
it works fine in brackets editor