RRust By Example

Collections

HashMap, HashSet, BTreeMap, and Vec operations.

9 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

beginner2 examples

HashMap Basic

Create and use hash maps for key-value storage.

HashSet Basic

Use HashSets for unique collections and set operations.

intermediate7 examples

BTreeMap

Sorted key-value map with B-tree implementation.

BTreeMap Range Queries

Query ranges in sorted maps with BTreeMap.

Group By with HashMap

Group items by key using HashMap.

HashMap Advanced Operations

Merge, update, and transform HashMaps.

HashMap Entry API

Use the entry API for conditional insert and update.

Sorting Vectors

Sort vectors with sort, sort_by, and sort_unstable.

VecDeque

Double-ended queue with efficient push/pop from both ends.