it is, but 0 can be counted as False

aaa.... right.... how on earth did I not notice that formal is s'posed to be a bool/

I did NOT improve from @thatbirdguythatuknownot's answer, I modified the test cases. So its still 96 characters.

I did NOT improve from @thatbirdguythatuknownot's answer, I modified the test cases.

nice

nice! I see that big improvement!

I agree.
Found more difficult katas rated lower than this involving regex.

Don't think it sould be at 5 kyu when this TicTacToe is at 6 kyu.

agreed

revision:
const robot = (skinScan) => skinScan.map((row)=>row.map((el)=>el === "X" ?"*":el))

thank you, got it!)

Coming at it with pretty poor regex skills I found it as tricky as most other 5kyu kata I've tried

I think it is too simple for a 5 kyu question. Anybody with basic regex skills should be able to complete this