huh? This answer is wayyyy too convoluted and slow.

I haven't read neither the transation nor the fork, so I make no comments on them here. But if I put on duckduckgo the term "Ingrediant" it says: 'Did you mean "Ingredient"'.

I know i'm a year late on this but really?
You can extend the regex with a literal 1 character change.
This is awful.

Ha, thank you. I had a lot of fun with that one, as I wasn't aware of .cycle() at the time.

rege soluation is the good approach, check the kata tags, nothing about SOLID OR POO

Thanks!! :-D

Ditto, I was like wtf.... almost thought it was python for a moment

I hope so) Thanks.

Yeah better to go directly and check inside reduce :)

Technically, worst case is 3n, since there are 2 filters and 1 reduce. Worse case would be all negatives for this case. But like the other guy said, big O notation does not really care about coefficients.

That's not how O notation works but yes, it makes 2n operations.