Aaaa console.log(formats) use it ))

If you need a tip to solve this kata (i did), stop trying Date.toLocaleDateString or any Date method. Use a different approach ;)

And IMO, it's not 7kyu

Really sorry. I don't know what what description I was reading when I left the comment. I will triple check description next time.

the locale formats to use are stored in the preloaded structure formats.

Isn't that already in the description?

Should be stated in the description that formats are provided

See ZozoFouchtra post below.

Seems like this was never done? It isn't working for me 4 years later and still very few have completed this kata.

Why I can't use Date.prototype.toLocaleDateString(loc)to change the time place.
For example, at my vscode -> getDate(1481020142, "ko-KR") output:2016. 12. 6.
but when I test the case. output:2016-12-6
why ???

approved

I also fixed the author's random tests (it's testing the user solution against... itself, so it's always vacuously true.)

For the reference: https://github.com/Codewars/codewars-runner-cli/issues/527

I guess you're right. I'll add it along with random tests.
Thanks for the feedback! =)

It seems .toLocaleDateString doesn' t work ( Intl.DateTimeFormat.supportedLocalesOf returns an empty array ) so I think it would be better to add your formats object in "Preload" section to let warriors use it. This way they'll be able to format output strings.

May the Code be with you!
; ) )