4.1 Demystifying String, str, &str, and &'static str4.1.1 String vs str4.1.2 Using strings effectively4.2 Understanding slices and arrays4.3 Vectors4.3.1 Diving deeper into Vec4.3.2 Wrapping vectors4.3.3 Types related to vectors4.4 Maps4.4.1 Custom hashing functions4.4.2 Creating hashable types4.5 Rust types: Primitives, structs, enums, and aliases4.5.1 Using primitive types4.5.2 Using tuples4.5.3 Using structs4.5.4 Using enums4.5.5 Using aliases4.6 Error handling with Result4.7 Converting types with From/Into4.7.1 TryFrom and TryInto4.7.2 Best practices for type conversion using From and Into4.8 Handling FFI compatibility with Rust’s typesSummary