I could not find any solution actually doing this because of built-in copy or const ref semantics but added a test for it anyways:
https://www.codewars.com/kumite/67346c955b6178ce3d28a71e?sel=67346c955b6178ce3d28a71e

me too... was expecting a 2 minute one liner for a dopamine boost lol

trickier than it looks, nice little wake up call

Approved.

@natan True, but the whole point was about me beeing confused. It just took B1t's message to make me realize the problem. Thx anyway :)

literally the first thing I told you

Thanks B1ts! Finally a good information that solved the misunderstanding!

Just in case:

VM1509:1 Uncaught EvalError: Refused to evaluate a string as JavaScript because 'unsafe-eval' is not an allowed source of script in the following Content Security Policy directive: "script-src chrome://resources chrome://webui-test 'self'".

No offense but yes, I read your comments, and exactly from your comments i figured out that most probably you did what you think was cloning, but really was not ;)

so how can other people swap stuff arround with cloned arrays?

Because they cloned it? It doesn't affect the original array. myvar = inputvar doesn't clone anything, it's just another variable name pointing to the same input array.

read my second one. Thats what I mean. It should not be this way. Anyway...thanks for trying

read my first reply in this thread

I can't remember for sure but I was doing something like this:

myvar = inputvar

doing stuff with myvar and return it

feedback: You are not allowed to mutate...:(

so how can other people swap stuff arround with cloned arrays?

this is what's going on:

xs = [3, 2, 1]
solution(xs)
print(xs)  # should still say [3, 2, 1]