Introduction to Rust

Rust gives you the speed and control of C with a compiler that guarantees memory safety — no garbage collector, no data races.

¶What is Rust?

Rust is a statically-typed systems language built around ownership: a set of compile-time rules that track who is allowed to use each piece of memory.

If your Rust program compiles, an entire class of crashes and security bugs is simply impossible.

¶Your first example

Here is Rust saying hello. Read it top to bottom — every line earns its place.

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

Hello, world!

¶Why learn Rust?

• Memory safety without a garbage collector — fast and predictable.
• A world-class compiler that turns runtime bugs into compile errors.
• Growing fast in systems, web (WebAssembly), and infrastructure.

¶Where it is used

• Systems programming
• WebAssembly
• CLI tools
• High-performance backends

¶How this track works

Every topic here has four views, switchable with the tabs at the top of each page:

• Learn — the clear, practical walkthrough you are reading now.
• Deep — every detail: edge cases, the full API, and what is really happening.
• Reference — a scannable, no-fluff lookup for when you already know the shape.
• Cheatsheet — the one-page summary, printable, for quick recall.