Earlier quoted context omitted.
QuickBASIC works the same way. Rust doesn't really build its help documentation for "built-in" access in the programming environment (everything is web-based, even "local" docs launch in a web browser) but examples are a first-class feature; they're reused as test cases.
> Rust [...] everything is web-based Correction: Rust's help and documentation is HTML -based, and getting a local, automatically updated copy is trivial. > even "local" docs launch in a web browser Uh, so what? Can you name a better format for programming language documentation that's also ubiquitously supported?
Maybe you mean Rust's documentation is rendered to HTML. In which case, sure, but so what? Good docs can be rendered to non-HTML formats too, typically for IDEs to display quickly without needing to load a full browser.