Hello - Rust Programming

A Rust program runs from main. This example binds a name, builds a greeting with format!, and prints it.

Program

Play the program to watch name flow into greeting, then print.

hello.rs

fn main() {
    let name = "Ada";
    let greeting = format!("Hello, {name}!");
    println!("{greeting}");
}

let binding `let` binds a value to an immutable name.

format! `format!` builds a `String` from a template and values.

println! `println!` writes a line to standard output.