You need to define your own setters and getters instead of utilizing the auto properties.

Some reading

psmilliorn, I think I made the mistake of debugging your JS solution in TS, hence why it seemed you hadn't exported your function. My apologies.

OP solved it, closing

everything works actually fine. I guess you entered the trainer in TS long ago (meaning, you're currently facing an outdated version of the example tests) => just reset the trainer.

This is a problem with your solution; you've forgotten to export your function. Please use the issue tag for issues with the kata itself, and the question tag if you need to ask for help solving it.

Backup your code, click Reset, paste it and try again.

Check it now.

That's because chai.config.truncateThreshold=0; is missing.

... must work, it should work but it doesn't work

no. Don't mutate the input, it's bad practice.

Same question.

solved by OP, closing

fixed

assert_equivalent(vector<string> {"ab", "ba"}, permutations("ba"));

There's nothing wrong other than your solution. Really. It returns too few permutations, it misses some. How many permutations does it return for input "bac"? How many should it return?