Rust by Example

This is the source code of the traditional Hello World program.

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

// You can test this code by clicking the "Run" button over there ->

// or if you prefer to use your keyboard, you can use the "Ctrl + Enter" shortcut

// This code is editable, feel free to hack it!

// You can always return to the original code by clicking the "Reset" button ->

// 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!");

}

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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!