if cfg!(windows) { // this only accept good rust code } #[cfg(target_os = "windows")] { wtf // this can be anything if not used }

In case RLS could not be started in VS Code, run the following command to install rls manually will fix it. rustup component add rls-preview rust-analysis rust-src

For loop in rust consumes(moves) the object, making it impossible to be used again. In this code, HashMap is consumed(moved). let mut m = HashMap::new(); m.insert(String::from("gaga"), String::from("m1")); m.insert(String::from("gaga1"), String::from("m2")); // m

Any trait is a trait that matches any type in rust. Use it as a trait object, allows for dynamic typing. The following code use Any trait with a HashMap to store anything in it. use std::collections::HashMap; use std::any::Any; fn