...www.typescriptlang.org/docs/handbook/classes.html#readonly-modifier
https://www.typescriptlang.org/docs/handbook...

When I see readonly I think of this:
https://docs.microsoft.com/en-us/dotnet...

...your DIP for 'readonly', and if it's accepted, you can write `readonly(Tuple)` and...

...the type system and add one-level "readonly" semantics to the language at this point...

...makes a language more hard to read.

"readonly" is pretty standard with a very clear...

...types.) So, here are my thoughts.

Your readonly is near useless if you really want...

...both.

So here is the idea:

Introduce "readonly" as head-immutable. That means that all...

...to try slicing first, because slice is a “view” (readonly to the underlying data) struct.

...default paths used by the packages are readonly. So, everything with prefix, all dependencies. The...

...fields content, instead of just plain pointer.
-- ReadOnly, ReadWrite declare fields without boilerplate code
-- Singleton...