A) actually was not obvious to me. I read the instruction one more time and didn't find anything about this spicific.

B) Thanx a lot! I didn't know.

A) but... that's the specification... 3*3 + 2*'\n' = 11 chars, just as expected.

B) replaceAll is available in node 15+. CW's node environment is at most 14 (for now).

In JavaScrypt got interesting test:

maze is:
.W.
.W.
...

maze.length: 11

typof maze == string

A) maze contains other symbols apart from . & W

B) for some yet unkown reason function replaceAll doesn't work - test returns error.

UPD: solved this bug by filtering initial maze splitted in array

Thank you for response! I will try harder

It's not always easy to understand the error messages - here the 82/82 means that is how many tests you completed before the time-out limit (of 12seconds/12000ms).

In fact there are 100 large random tests, so you are missing 18 out of 100. Your code needs to be a bit faster, or - more likely - you need a more efficient general approach.

edit- there are 100 large random tests in Python, I just noticed you are working in JavaScript so exact number might be different - in any case, the general comment is correct. Probably your approach is too inefficient, and the kata wants you to find a faster way to solve it.

Great solution!

Fantastic! Bravo! I spent more time exploring your code than writing my own. And I learned so many useful and interesting things from these refined solution!

Awesome!