1. Getting Started

To install Rust, we use rustup, a command line tool for managing Rust versions and associated tools.

Hello, world

Rust use snake_case as convention for naming variables, functions, modules, etc.

Filename: main.rs

fn main() {
    println!("Hello, world!");
}

Compile and run:

rustc main.rs
./main

=> Cargo as Convention.

cargo new hello_world to create a new project called hello_world: --bin to create a binary project (default), --lib to create a library project
cargo build to compile (development)
./target/debug/hello_world to execute (development)
cargo run to compile and execute (development)
cargo test to run tests
cargo doc --open to generate documentation provided by all your dependencies locally and open it in your browser
cargo check checks your code to make sure it compiles but doesn't produce an executable
cargo clippy runs the clippy (official) linter (is a superset of cargo check, so it also checks for compilation errors), cargo clippy --fix to automatically fix some of the errors/warnings
cargo fmt to format the code
cargo build --release to compile with optimizations (production)
./target/release/hello_world to execute (production)
cargo run --release to compile and run (production)