The "," command takes 1 byte from input and puts at the data pointer. So, if we have "Code" input the code ",." will output 'C'. The ",,." should return 'o'. Atleas it is as I understood the assignment.

OP solved it, closing

No, it's optional.

Yes, BF works on a memory of byte cells which the datapointer points to. This you have to initialize/manage yourself. Maybe you should read the Wikipedia article linked in the description.

O(n)

Hi,

Not a kata issue, and actually not an issue at all: this is sort of "by design". Forbidding this would involve destorying a lot of features that make for cw's identity/way of working, so it won't happen.

Now, please note that what you used is considered an actual cheat and can lead to banishment when used "to some extent". I hid your solution, but don't use that again.

Cheers

How might you interpret a number as negative?
foo-001 could easily be seen as the number "001" after the string "foo-"

Thank you. I had not seen String.prototype.someFunction before and I was confused about how to access the input string :)

The email I got for your comment was way more intriguing. Keep up the good learning energy, and don't be afraid to state what you've learned!