They all can do slightly different things after the evaluation, but if you just throw in a string of math, they output the answer.

https://4loc.wordpress.com/2009/05/29/eval-module_eval-and-instance_eval/

lol

Could someone please explain this approach?

Imagine a spiral staircase, where walking [n, w, s, e] will result in going up (or down) the stairs. But walking [n, s, e, w] in that order will result in staying put.
Anyway, better to follow the problem spec than to complain about it.

I am having the same issue when I tried array manipulation with the test cases. Could you please explain how you can complete this kata mathematically? I cannot imagine how you can do this without using array manipulation.

Thanks.

Without knowing what you tried to come to this difficulty I don't know what to tell you. In JavaScript there may be a noticeable diference in how you multiply by powers of another number. But people have been successful in both main ways.

Thanks!

those tests at the top of your solution should return false because someone rolled a 105, and the wheel is only supposed to go to 100

I have been having trouble with meeting the 600ms time limit for multiple kata's including this one.

Could anyone please give me tips?

Maybe a term or topic I could google/research on?

Thanks for the comment marcmoy. I'm actually not sure as I haven't had a job in the industry yet. It's a good question though I'd like to know as well.