deca/content/blog/hello-world.md

+++ title = "Hello World" description = "Introducing Doks, a Hugo theme helping you build modern documentation websites that are secure, fast, and SEO-ready — by default." date = 2021-05-01T09:19:42+00:00 updated = 2021-05-01T09:19:42+00:00 draft = false template = "blog/page.html"

[taxonomies] authors = ["Rustaceans"]

[extra] lead = "This is the source code of the traditional Hello World program." +++

// This is a comment, and is ignored by the compiler

// This is the main function
fn main() {
    // Statements here are executed when the compiled binary is called

    // Print text to the console
    println!("Hello World!");
}

println! is a macro that prints text to the console.

A binary can be generated using the Rust compiler: rustc.

$ rustc hello.rs

rustc will produce a hello binary that can be executed.

$ ./hello
Hello World!