RRust By Example

Functions

Functions, closures, and higher-order functions.

4 examples

Basics Ownership Compound Types Flow Control Functions Generics Traits Error Handling Collections Concurrency Async Smart Pointers Iterators Patterns Modules Macros Unsafe Lifetimes Testing File I/O Serialization CLI

beginner1 examples

Functions Basic

Define and call functions with parameters and return values.

intermediate2 examples

Closures Basic

Anonymous functions that capture their environment.

Higher-Order Functions

Functions that take or return other functions.

advanced1 examples

Returning Closures

Return closures from functions using impl Fn or Box<dyn Fn>.