Why it make's error for function ok() in line : 41

Question

https://code.sololearn.com/Wg6U037TtSlJ/?ref=app

Answer 1

x.style.backgroundColor = document....

Answer 2

What does the error say? Also it gave me an error in line 42.

Answer 3

Also you variable x is local, which means it can only be used in that function, and not outside of it.
Can't say for sure but it also could be a problem.

Answer 4

Did my answer solve your problem?

Answer 5

I want that it be local no problem thanks

Answer 6

Yes thanks

Answer 7

No problem, good luck.