Example
// all variables `s` have the type `String`
let s = "hi".to_string(); // Generic way to convert into `String`. This works
// for all types that implement `Display`.
let s = "hi".to_owned(); // Clearly states the intend of obtaining an owned object
let s: String = "hi".into(); // Generic conversion, type annotation required
let s: String = From::from("hi"); // in both cases!
let s = String::from("hi"); // Calling the `from` impl explicitly -- the `From`
// trait has to be in scope!
let s = format!("hi"); // Using the formatting functionality (this has some
// overhead)
Apart from format!(), all of the methods above are equally fast.
