NonEmptyArray

[hsubra89]

Thanks for the great library.

I would like to propose adding in an implementation of NonEmptyArray to the core library. For repositories with the noUncheckedIndexedAccess flag enabled in the typescript compiler, it can generally be a bit of a hassle to work with arrays, especially when we can guarantee that the array is NonEmpty.

NonEmptyArrays can be represented using :

type NonEmptyArray<T> = [T, ...T[]]

I propose we implement a NonEmptyArray backed by native arrays. For the most part, we can drop to using native functions where possible, but simply cast the result to the NonEmptyArray type where it can be guaranteed. ( For example, map, head, last, sort, reverse, concat, etc... )

Additional Reading :
https://typelevel.org/cats/datatypes/nel.html
https://docs.rs/nonempty/latest/nonempty/

I'm happy to help contribute to this piece if there is sufficient interest :)

[hsubra89]

Hey, would there be any interest in looking into this? If not, we can close the discussion :)

[bloodyowl]

hello!

thanks for your interest!

we're currently not sure this falls in the scope of the library right, but we're keeping that idea in mind.