Been a very long time since I touched this, but it's string comparison to see if one string can be transformed into a second string only by adding, removing or swapping a single character.

With that said, we were apparently code golfing and optimizing performance just for fun, you should absolutely not take this code as a good example of well-written Ruby.

What is the actual purpose of "One Away"?.

To compare a pair of ranges, strings or arrays?.

Would appreciate some comments.

Many regards,

A very green Ruby rookie... :)

Nice job! This one was fun.

This is my first kumite :)

Hi,

without using the *operator

Basic rule of thumbs on cw: if you wanna the user to actually follow some restrictions, you have to implement tests to enforce them (reasonnably, at least).

Following advise: it's almost impossible to enforce in python/ruby so I'd suggest you to just (and quickly) unpublish the kata.

Other than that, your kata is currently a duplicate of the multiply kata and is missing random tests so it cannot pass the beta phase.

Did you already read the documentation about authoring? It's a bit long, but you'll find there a lot of useful information about the how and the why (authoring/beta process/...)
https://docs.codewars.com/authoring/guidelines/

Cheers