Archives

2026

Mar 25 43. Vec::extract_if — Remove Elements and Keep Them

vec iterators collections stdlib

Mar 25 42. array::from_fn — Build Arrays from a Function

arrays std from_fn

Mar 24 40. Scoped Threads — Borrow Across Threads Without Arc

threads concurrency scoped-threads

Mar 24 41. Async Closures — Pass Async Code Like Any Other Closure

async closures tokio

Mar 23 39. Trait Upcasting — Cast dyn Trait to dyn Supertrait

traits trait-objects upcasting

Mar 23 38. #[must_use] — Never Ignore What Matters

attributes compiler error-handling

Mar 22 36. Cow<str> — Clone on Write

cow smart-pointers strings performance

Mar 22 37. Option::zip

option combinators functional

Mar 21 35. LazyLock

lazy static initialization lazylock

Mar 21 33. std::mem::take

Mar 21 34. array_windows

slices iterators array-windows

Mar 20 32. iter::successors

Mar 20 31. HashMap's entry API

hashmap collections entry

Mar 19 30. dbg! macro

macro debugging

Mar 19 29. Let chains

if-let pattern-matching

2023

Feb 01 28. Raw string

string raw string

Jan 02 Closures

closure fn fnonce fnmut

Jan 01 26. Collecting into Option

option iterator

Jan 01 27. Option's sum/product

option iterator

Jan 01 Implementing custom iterators

2022

Dec 24 24. ..=X

option iterator

Dec 24 25. Option's iterator

option iterator

Dec 06 23. Enum's default value

option iterator

Nov 11 22. Enum's Debug

option iterator

Oct 22 21. Zip longest

option iterator

Sep 11 20. let-else statements

option iterator

Aug 18 19. breaking from labeled blocks

option iterator

Jul 13 18. flatten options

option iterator flatten

Jun 10 16. Option/Result match?!

option result matching

Apr 20 14. Find index of item

iterator position

Apr 20 15. Scan

Mar 20 12. Enumerate

enumerate iterator

Mar 20 13. Fold

Mar 20 17. filter_map

iterator map filter

Mar 19 11. Fuse

Feb 25 10. cloned vs copied

Feb 15 9. Inspecting iterator

Feb 10 8. Drain

iter iterator drain vec

Feb 05 7. iter() vs into_iter()

Jan 30 6. non-exhaustive enums

Jan 25 5. Loop breaks and labels

Jan 20 4. Option -> Result

Jan 15 3. Result -> Option

Jan 10 2. mysterious @

Jan 05 1. matches!

Jan 01 0. Hello, rustbites!