I can't get any of the random tests to pass....
I really liked this Kata but I have an eerie feeling it isn't my code that is the problem.

I had no idea about map_size. And it runs in constant time too!
Makes my solution look so convoluted

yeah but this is ranked as a 7 kyu?

Gotta love the new es2015 features huh! These are 3 of my favorites right here. Along with destructuring too

I am so horrified by my solution on this challenge. I will need to refactor like crazy!

I swear reduce can do anything!

Recursion is so beautiful

not a lot of value in this challenge. Lack of variety in the answers shows you that it could be more complex.

I think it would be a good idea to mention in the rules to not use the Math.pow() function in this function. That way its a little more of a challenge then wrapping a native function in the challenge function.