Awesome GitHub RepositoriesPersistent Data Structures

This is a persistent data structure library for JavaScript that provides collections which prevent the direct mutation of objects and arrays. It serves as an immutable state management tool and functional programming utility, ensuring that data remains unchanged after creation to simplify change detection and state tracking. The library enables the maintenance of application state by producing new versions of data structures during updates. It focuses on efficient data comparison by checking actual content instead of memory references and supports a functional programming workflow to prevent

Immer is an immutable state management library for JavaScript that enables the creation of new versions of state trees. It functions as a state container that uses a proxy-based handler to ensure data immutability. The library utilizes a copy-on-write mechanism and a draft-based mutation model. This allows users to write mutating code on a temporary proxy, which the system then uses to produce a new immutable result while keeping the original state unchanged. The project covers immutable state management and complex object cloning to facilitate predictable state transitions. These capabiliti

Lazy.js is a JavaScript library that implements a lazy evaluation model for processing collections and data streams. It defers all computation until iteration begins, building chains of transformations that execute only when values are consumed, avoiding intermediate arrays and buffering. The library wraps data sources into a uniform sequence interface, enabling operations like map and filter to be chained together without materializing intermediate results. The library extends lazy processing beyond simple collections to handle asynchronous data sources, DOM events, strings, and Node.js stre

ClojureScript's persistent data structures and supporting API from the comfort of vanilla JavaScript

JavaScript & TypeScript persistent and optionally immutable data tree with cursors.

🐆 An immutable list with unmatched performance and a comprehensive functional API.

TypeScript-STL (Standard Template Library, migrated from C++)

Functional Reactive State for JavaScript and TypeScript

Utilities for treating frozen JavaScript objects as persistent immutable collections

Functional programming, immutable collections and FP constructs for typescript and javascript

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.

😴 Functional programming with lazy immutable iterables

High performance implementation of Immutable Sequence in JavaScript, based on Finger Tree.