Rust Essentials

Learn Rust from scratch. Ownership, types, error handling, and concurrency explained clearly with hands-on code.

What You'll Learn

• Getting Started: Install Rust with rustup, cargo basics, your first program
• Variables and Mutability: Immutability by default, let mut, shadowing, constants
• Data Types: Integers, floats, char, tuples, arrays, and the String vs &str split
• Functions and Control Flow: Expressions, if/match, loops
• Ownership and Borrowing: Rust's killer feature, memory safety without a garbage collector
• Structs and Enums: Build complex types, pattern matching with match
• Error Handling: Result, Option, and the ? operator for clean error propagation
• Collections: Vec, HashMap, String, the standard toolkit
• Traits: Shared behavior and polymorphism without inheritance
• Generics: Write code that works across types, with zero runtime cost
• Lifetimes: The borrow checker's rules for how long references live
• Modules and Crates: Organize code and pull in dependencies with cargo
• Closures and Iterators: Functional patterns that compile to zero-cost abstractions
• Concurrency: Fearless concurrency with threads, channels, Arc, and Mutex
• Async and Await: Handle thousands of I/O-bound tasks on a small thread pool
• Build a CLI Tool: A hands-on capstone, a real word counter built from scratch

Why Rust?

• No garbage collector, no manual memory management. Ownership gives you both safety and performance
• If it compiles, it (probably) works. The compiler catches entire classes of bugs at build time
• Zero-cost abstractions. High-level code that runs as fast as hand-written C
• Growing fast. Systems programming, web (WASM), CLI tools, cloud infrastructure

Prerequisites

Programming experience in any language. You should be comfortable with variables, functions, loops, and basic data structures. No prior Rust or systems programming knowledge needed.

Course Structure

16 lessons that build on each other. Ownership (lesson 5) is the turning point: everything before it builds up to it, everything after builds on it. The final lesson is a hands-on capstone where you build a real command-line tool from scratch. Each lesson has quizzes and runnable code examples. Ready to start? Choose your first lesson from the sidebar!