Collections in Rust

Rust collections include **lists** (`LinkedList`), **vectors** (`Vec`) for dynamic arrays, and **hash maps** (`HashMap`) for key-value pairs. `Vec` is the most common, offering dynamic resizing. Collections provide iterators, robust error handling, and memory safety, enabling efficient data management. Use the `std::collections` module for advanced collections.

1 Introduction to Rust’s core collection types: Lists, Vectors, and HashMaps

2 Understanding the difference between contiguous arrays and linked lists in Rust

3 Getting started with Vec<T> in Rust: Basic creation and initialization

4 Rust - Adding and removing elements from a Vec<T> with push, pop, insert, and remove

5 Working with LinkedList<T> in Rust: Basic usage and limitations

6 Rust - Exploring VecDeque<T> for efficient front-insert and pop operations

7 Rust: Comparing performance trade-offs between Vec<T>, LinkedList<T>, and VecDeque<T>

8 Understanding how Rust’s memory model influences collection performance

9 Creating a HashMap<K, V> in Rust: Storing key-value pairs

10 Using Default Hash Builders vs custom hashers for Rust HashMaps

11 Rust - Choosing HashMap vs BTreeMap: Trade-offs in performance and ordering

12 Iterating over Rust Vectors with for loops and iterator adaptors

13 Rust - Unwrapping Option<T> results when accessing vector elements safely

14 Rust - Working with references to vector elements: &vec[index] vs vec.get(index)

15 Rust - Understanding capacity, reserve, and shrink_to_fit in Vec<T>

16 Resizing vectors in Rust: resize, extend, and extend_from_slice

17 Rust Slicing vectors: &vec[..], &vec[a..b], and advanced slice patterns

18 Rust: Leveraging split, split_mut, and chunks for partial vector processing

19 Sorting a Rust Vec with sort, sort_by, and sort_by_key

20 Rust - Searching in vectors: find, position, and binary_search for sorted data

21 Filtering a Vec in Rust using filter, retain, and drain

22 Rust - Mapping vector elements to new values with map, iter_mut, and collect

23 Rust: Concatenating vectors with append, extend, and the + operator (for strings)

24 Understanding indexing in Rust: Why Vec<T> doesn’t allow negative indices

25 Safely splitting a Vec into multiple slices with split_at and split_at_mut

26 Rust - Working with capacity-based constructors: with_capacity to optimize memory usage

27 Rust - Converting slices into owned vectors using to_vec

28 Rust - Turning vectors into slices with as_slice and as_mut_slice

29 Using drain on a Vec<T> to remove elements while iterating in Rust

30 Building and merging multiple vectors into one aggregated list in Rust

31 Rust - Applying functional transformations on vectors: fold, reduce, and enumerate

32 Cloning vs copying vector elements in Rust: performance implications

33 Working with vectors of references in Rust: lifetime considerations and borrow checking

34 Advanced iteration over vectors in Rust: zip, chain, and other iterator adaptors

35 Rust - Implementing custom sorting for vector elements with user-defined comparisons

36 Rust - Dealing with partial moves when pattern matching vectors

37 Rust - Leveraging Vec<T> in concurrency: sending vectors between threads

38 Converting between VecDeque<T> and Vec<T> in Rust

39 Rust - Simulating queue operations with VecDeque<T>: push_back, pop_front

40 Rust - Circular buffers and rotating elements in VecDeque<T>

41 Rust LinkedList<T> basics: pushing and popping from the front and back

42 Why LinkedList<T> is rarely used in Rust: performance and use cases

43 Transforming a LinkedList<T> into other Rust collections

44 Rust - Implementing custom algorithms on LinkedList<T>: merges, splits, and more

45 Rust - Exploring double-ended iteration over LinkedList<T> with iter and iter_mut

46 Rust - Understanding how iterators work internally for Vec<T>, LinkedList<T>, and HashMap<K, V>

47 Rust: Creating a HashMap<K, V> with capacity to reduce reallocation

48 Rust: Inserting, updating, and removing entries from a HashMap<K, V>

49 Rust: Checking for key existence in a HashMap<K, V> with contains_key

50 Rust: Retrieving values from a HashMap<K, V> safely with get, get_mut, and entry

51 Rust: Using the entry API to handle default initialization in a HashMap

52 Rust: Iterating over key-value pairs in a HashMap with iter and iter_mut

53 Rust - Transforming HashMap entries into other collections with collect

54 Rust - Combining multiple HashMaps by merging keys and values

55 Updating Rust HashMaps with advanced methods like retain and drain

56 Handling collisions in HashMap: how Rust’s hashing mechanism works

57 Rust - Customizing hashing behavior with a different Hasher implementation

58 Security considerations: HashDoS and Rust’s default SipHash

59 Avoiding re-hashing by carefully choosing key types for Rust HashMaps

60 Rust - Storing complex types as keys in a HashMap, requiring Eq and Hash implementations

61 Rust - Working with references as HashMap keys: lifetime constraints and key validity

62 Rust: Working with Option types when searching for values in HashMap

63 Rust - Comparing and contrasting HashMap with BTreeMap for sorted data

64 Rust - Creating a global or static HashMap using lazy_static or once_cell

65 Rust: Serializing and deserializing HashMaps and Vectors with Serde

66 Rust: Implementing partial equality or ordering for custom vector or map elements

67 Rust: Immutably sharing vectors with Arc<Vec<T>> across threads

68 Rust - Protecting concurrent writes to a shared Vector with Mutex or RwLock

69 Rust - Designing efficient algorithms around contiguous data in Vec<T>

70 Rust: Leveraging concurrency with dashmap or flurry for concurrent HashMaps

71 Rust - Turning a Vector into an iterator of references or owned items

72 Rust - Filtering and partitioning Vector data into multiple sub-collections

73 Rust - Flattening nested vectors: Vec<Vec<T>> into Vec<T>

74 Rust - Building hierarchical data structures with vectors of enumerations

75 Rust - Converting between different collection types: from Vec<T> to HashSet<T> or HashMap<T, U>

76 Rust - Safely handling out-of-bounds vector indexing with get and get_mut

77 Rust - Implementing custom wrappers around Rust’s standard collections for domain logic

78 Rust - Inspecting memory usage of vectors and hash maps with built-in methods or external crates

79 Rust - Benchmarking collection operations with Criterion for performance insights