ReadonlyArray<TData>

[homburg]

I'd like to convert all types like TData[] to ReadonlyArray<TData> (my preference) or readonly TData[].

This would be a non-breaking change as TData[] extends/is assignable to ReadonlyArray<TData>[].

This would enable using readonly data for table data and signal explicitly that tanstack-table does not mutate the original data internally anywhere.

[MH4GF]

I too wish this request. related: #3748

[vdawg-git]

Bumping this. readonly is just nicer