YYYY-MM-DD with 3 digit year returns true for isValid()

[mikec83]

I notice if I do the following:

moment('013-01-01', 'YYYY-MM-DD').isValid()

it returns true but I'd expect it to return false.

[chall8908]

You should use moment's strict parsing for this kind of thing. Otherwise, the parser doesn't do much checking of the input. In this case, you end up with a valid date anyways, I assume, because the returned date (January 1st, 13) is the same as the input date. Beyond that, I don't think strict mode checks to see if all the format tokens have been consumed, just that all the input has been.

[mikec83]

Yeah, I tried using strict before opening this issue.

[chall8908]

Ah, my apologies. As I said, though, I think strict parsing only ensures that all the input has been consumed, which, in this case, it has. I'm not entirely certain this is a bug, per se, but unclear behavior for sure. Even my first thought was "Oh, strict parsing should fix this" when, clearly, it doesn't.

[ichernev]

Fixed in 19a1ceb
Would be in next release.