Advent of Code 2025 Deno Libs

AocArgParser, EcArgParser

Challenge-specific implementations of the same abstract base class.

BinaryHeap

Binary heap with destructive and non-destructive iterators.

Counter, BigCounter, DefaultMap

Trivial Map wrappers.

Deque

Fast circular array.

Grid

Advent of Code does seem to like them.

HashedMap, HashedSet

Map wrappers. Both require a hasher function. Hash is stored in the Map's key. Original key is stored in the Map's value. HashedSet reimplements all of Sets functionality but it can be slower.

LinkedList

Double linked list with low overhead inserts and deletes.

Logger

You will never guess.

Mutex, Semaphore

Simple mutex based on the functionality of async-mutex. Semaphore is a trivial Mutex wrapper.

PackedMap, PackedSet

Fast Map and Set wrappers. Both require packer and accept an optional unpacker function in order to retreive the original keys.

Point2D, Point3D

Also Advent of Code favourites. Class and type-only variants.