corrected

Translation adds 0 value to kata.

Could you elaborate why?

EDIT: Oh you mean from numbers to plain english? I thought you mean kata language translation.

(deleted)

• Translation adds 0 value to kata.
• Sample tests are scarce for a 7kyu kata. Some people come here to learn.
• Instructions are unclear and lead to confusion. specially last 2 points in Notes.

Composable streaming folds

This is elementary logic. If you were never taught that, I can see how it looks arbitrary.

But it really isn't.

(JS, possibly others)

Description could be improved:

• "return null if the array is empty"
• "each implies the next" is incorrect; that would return a length n-1 array of Booleans. it's more of a rolling result; each prefix result implies the next value, recursively.

The empty array case is completely arbitrary ( returning True would actually make more sense ); also, [False] by itself should also really return True IMO. Why are lengths < 2 even tested? Just don't.

Maximising array length at 8 is also arbitrary. You're not going to hardcode this, are you? ( Actually, the tests are hardcoded. I would definitely have done that algorithmically! O.O ) But there will always be some limit, and 8 is as good as any.

Looking at the test cases in addition to the problem description was no help for me. Both looked arbitrary as far as I could tell. I clicked through to the solution after googling and guessing for long enough. Disappointing.

It says "return false for empty array" in description. Please correct, for the tests require to return null for empty array.

It is obviously very wrong. And so are the tests which should be modified. Thanks for pointing it out!

This solution looks wrong (or I misunderstood the assignment). It returns true for

isMerge "hello world" "elloh " "world"

whereas it should return false, since the ordering of characters in part1 is not the same as in s.

@GiacomoSorbi Make sure to check this question for outdated parts.

I expected to find you here, senpai :D

Thanks for the link, didn't know about the online version of RWH with comments: bookmarked!

It does not check all cases. isMerge "charles" "cals" "her" should be False. Which is not for at least two programs in solutions sections among which is mine, which I submitted thinking it would not be taken.