Brain power overload ❗❗❗ Cannot compute

What in the world

😅 Well that's embarassing. I thought it was giving me the SAME error for the first part. Thank you.

Right... but it should be returning -1, just like it returned 7. That's literally the only thing I changed. Why is "return -1;" returning "undefined"? When I changed "-1" to "7", it returns "7", not "undefined".

The error message works like this:

pageIndex(40): expected undefined to equal -1 // <- this was the expected answer 
                            ^
//                  Your code returned this                            

And you can see that when you returned 7 instead.

One of the most readable short form answers. 👍

Thank you)

those are just the variables names with silly 'unreadable' labels. Definitely NOT a best practice.

Excellent comments and readability