frptools / collectable Star 277 Code Issues Pull requests High-performance immutable data structures for modern JavaScript and TypeScript applications. Functional interfaces, deep/composite operations API, mixed mutability API, TypeScript definitions, ES2015 module exports. javascript map set list typescript immutable dictionary deep nested-structures javascript-library batching data-structures immutablejs typescript-definitions red-black-tree es2015-modules hash-array-mapped-trie sorted-set sorted-map Updated Mar 6, 2023 TypeScript
rimbu-org / rimbu Star 139 Code Issues Pull requests Discussions Rimbu is a TypeScript library focused on immutable, performant, and type-safe collections and other tools. list typescript immutable collection stream graph table hashmap bimap hashtable sorted multimap sorted-sets sorted-map rimbu Updated Oct 21, 2025 TypeScript
bacali95 / sweet-collections Star 4 Code Issues Pull requests Typescript implementations of in-memory cache data-structures for Node and Browser. avl-tree collections heap lru-cache sorted-array lfu-cache sorted-set sorted-map Updated Jul 20, 2023 TypeScript