TypeScript typings too optimistic

[osdiab]

Some of the function types say that they'll return a string, but in fact often return undefined.

For example, if you use getAlpha2Code("Laos", "en"), then in fact you get undefined, not the stated string return type, because you were supposed to type Lao People's Democratic Republic (the fact that Laos doesn't match is a separate issue).

I'm willing to make a PR that makes these types more accurate to the true behavior of the library, but want to make sure that maintainers are OK with that change first.

[michaelwittig]

Yes. I would love to see them improved! #198 was trying that as well. You might just comment on that PR.

[michaelwittig]

duplicate of #184 ?

[osdiab]

ah yeah duplicate - I'll push a pr to fix it! That one looks stale and I can do even better :)