Introduction

https://www.rust-lang.org/ (opens in a new tab)

Fundamentals

Cargo

Variables

Scope

Memory Safety

Functions

Module System

crates.io

Primitive types and control flow

Scalar types

• Underscore in numeric literals for readability. 1_000 is the same as 1000.
• f64 is the default type for floating-point numbers. But it slow, so f32 is used for performance.
• IEEE-754 standard for floating-point numbers.

Compound types

Tuple

• Max 12 elements

Array

• Max 32 elements

Control flow

if expression

Strings

The heart of Rust

Ownership

• Each value have an owner.
• Only one owner.
• When the owner goes out of scope, the value is dropped.

References and borrowing