Advanced Traits
Traits are Rust's core abstraction mechanism, and Module 2 covered the essentials — but the trait system has more depth that shows up constantly in real code and library APIs: associated types that make traits cleaner than generics, operator overloading, traits that build on other traits, and a pattern that lets you work around Rust's coherence rules. This module goes beyond the foundations into the advanced features you'll meet in serious Rust, starting with the corners of the trait system.
Traits are Rust's core abstraction, and Module 2 covered the essentials — but the trait system has more depth that shows up constantly in real code: associated types that make traits cleaner than generics, operator overloading, traits that build on other traits, and a pattern for working around Rust's coherence rules.