it's 2022 and JavaScript has native classes, static class methods, and static class properties. I rewrote the description and tests so as to make more sense with modern JavaScript, while keeping backwards-compatibility

How i don't like theese. This is more of an experience/knowledge than logic.
And I will prob forget it after 2 days anyway. xD

It is definitely not a 7 kyu kata. 6 kyu or even 5 kyu would be more appropriate

JS: Node v12 should be used enabled along with its appropiate assertion tools (Mocha + Chai).

addStaticMethod(Test, 'foo', () => this.value);

This example in the description is different from what's actually tested which is important considering how named and anonymous functions work.

• seems not correct => how am I supposed to know what the problem is...? => upgrade the tests to assertEquals
• needs random tests

Yep. Thanks!

Approved.

This should be better now.

Fixed.

actually author don't have rights to change level of kata, Katas are approved on average ratings from people who have solved it before it's approved. FYI, i don't see this kata jumping 7kyu rating :)

What do you think to write something in the description?