Efficient immutable updates, 2-6x faster than naive handcrafted reducer, and more than 10x faster than Immer.

ESLint rules to disable mutation and promote fp in JavaScript and TypeScript.

A MobX powered state management solution based on data trees with first class support for Typescript, support for snapshots, patches and much more

TSLint rules to disable mutation in TypeScript.

A very fast and lightweight Typescript library to create immutable states with a mutable syntax

State management for React

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

A tiny immutable store with type safety.

📚Write safer TypeScript using Maybe, List, Result, and Either monads.

React Hook for State Management

A Mutative middleware for Zustand enhances the efficiency of immutable state updates.

A 2-6x faster alternative to useState with spread operation.

Tuples and value objects for JavaScript 🤷

❤️ easily sharing state across electron main and renderer processes.

A JavaScript library for transactional mutable updates

react bindings to mlyn

A faster and more flexible utilities for using Mutative with XState

A collection of readonly TypeScript types inspired by the built-in ReadonlyArray, ReadonlyMap, etc.

A Mutative extension for Jotai

Opinionated, Redux abstraction with built-in immutability, async and more. Heavily dva inspired.