I don not understand why come here to practice and answer just by using built-in methods.

I like this one 'cause tell me why String is being use

(Also this is the CW bug again: kata validation is not allowed at initial creation...)

Initial code and sample tests are missing. There are only 2 fixed tests and no random tests. Author solution is empty.

Please review kata authoring guidelines before creating a kata.

Excelent!

It's not the same say 1 - 2 than 2 - 1

Thanks for the hint 😁...save me time

Why this is considered the best practice?

Each of them going to be false and true sometimes. When the condition return true or false, even it return true fullfilling the condition.