this kata is more than 10 years old. Classes were introduced in ES2015. (by the way, classes are no longer merely syntactic sugar for prototypal objects; private class features for instance can hardly be emulated with pre-ES2015 JavaScript)

why not use a class? I get that a class is just syntactical sugar and it's doing this under the hood but why do it like this?

very goood

This solution surpassed all the concepts

lol

This is amazing. Is it in Python?

code wars is ruined by the 13 to 20 demographic

it seems he is working for Google and have no time to answer

very cool my boy

Thank you. Republished

With the issues addressed and closed, you can republish the kata.

Changed to margin of error.

Changed to margin of error on perceived time per JohanWiltink's comment

Rounding is not the correct way to handle floating point representation inaccuracy, testing with an error margin is. This is documented.