Add v.tuple([...])

[reinismu]

Tried to be a good user and contribute.

This is the last feature I need to migrate from slow zod to valita.

Will solve #1

[jviide]

Wow, thank you! I've been mulling over implementing the tuple type in my head, so it's great that you took the lead on this.

I'll merge this pull request and might add some ideas to the overall implementation (maybe combining array/tuple implementations similarly to record/object) before publishing v0.0.10. I'll ping you here when I publish 👍

[jviide]

@reinismu v0.0.10 (and v0.0.11 as I forgot to add the message for the new invalid_length error) has now been published to NPM. Big thanks once again 🙂

I ended up combining the array and tuple implementations. Maybe one day we can have tuple types like [A, B, ...C[]]! Also, invalid_type errors from tuple parsers give the expected (input) type as array, as that's the "fundamental" JavaScript type behind both tuples and arrays (and v.union(...) uses that type to optimize its matching paths).

[reinismu]

@jviide Awesome :) Time to implement it in my project