After solving all 17 problems, I must say it was enjoyable, interesting, and straightforward. Thank you so much!

While trying to debug my solution I managed to find out that codewars allows for the injection of arbitary HTML via console.log. At least it removes script tags, so there's no immediatly obvious XSS vulnerability here. Still super annoying since it means I'll need to sanitize my own logs now.

For reference here is the log function I used for debugging my solution:

function ___log(text) {
  console.log(text.replace(/["'<>&]/gi, c => `&#${c.charCodeAt(0)};`));
}

I have added Python (dictionary) to description, please approve: https://www.codewars.com/kumite/666cc1ec00d4037fdbf09722?sel=666cc1ec00d4037fdbf09722

если код в функции реализован в одну строку то можно обоитись без скобок и return

You did not initialize a container to perform the accumulation within. The reduce function basically does nothing, you should instead compute the total frequencies using an Object / Map.

There should be fixed and sample tests like below:

• Michael Michael. (only 1 valid last name same as first name, still fits in scope since description does not mention otherwise)

• Michael Burmor Michael Jordan Michael Justin Michael Jackson Michael Phisher (a sentence consisting of only all valid names)

nice

The description must be understandable for foreigners. I spent all my time just clarifying the line “at most 2 times higher than the number”, maybe it’s worth rewriting this line

Please format your code properly as shown here: https://docs.codewars.com/references/markdown/#code-block

I copied the code you posted and I got no such errors. Maybe you modified sample tests accidently?

it would be nice to have a test, that checks if input data not changed

let's code and play AoE. it's ok. Good luck

loll

Fixed in OP's fork

Approved