Learn RUST with Real Code Examples

Rust is a compiled, multi-paradigm language emphasizing memory safety without garbage collection.

It uses ownership, borrowing, and lifetimes to provide deterministic safety at compile time.

Designed for system programming, WebAssembly, cloud services, and performance-critical applications.

Ownership, borrowing, lifetimes

Traits and generics

Pattern matching

Async/await

Smart pointers and interior mutability

Ownership and borrowing

Variables and shadowing

Functions and closures

Structs and enums

Traits and generics

Error handling with Result/Option

src/ for main code

Cargo.toml for manifest

target/ for compiled binaries

tests/ for integration tests

examples/ for demo programs

Create project with cargo new

Write code in src/main.rs or lib.rs

Build with cargo build

Run with cargo run

Test with cargo test

Beginner: Basic CLI tools

Intermediate: Web servers and APIs

Advanced: Async runtimes, compilers

Expert: OS kernels, embedded firmware

Safer than C/C++

Faster than Go in many workloads

More predictable than Java

Lower-level than Python

Rust 2015 - First stable edition

Rust 2018 - Major improvements

Rust 2021 - Modern async support

Rust 2024/2025 - Next-gen edition

Ownership: A compile-time memory-safety model

Borrowing: Temporary access to data

Lifetime: Scope in which a reference is valid

Crate: A compilation unit in Rust