redux vs effector vs mobx vs rxjs
State Management and Reactive Programming Libraries
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State Management and Reactive Programming Libraries

State management and reactive programming libraries are essential tools in modern web development, enabling developers to manage application state and handle asynchronous data streams effectively. These libraries provide various paradigms for managing state, ensuring predictable state transitions, and facilitating communication between different parts of an application. By leveraging these libraries, developers can create more maintainable, scalable, and responsive applications that enhance user experiences and streamline development processes.

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redux13,120,93261,462290 kB412 years agoMIT
effector29,8654,8211.59 MB1526 months agoMIT
mobx028,1844.35 MB796 months agoMIT
rxjs031,6554.5 MB293a year agoApache-2.0

Feature Comparison: redux vs effector vs mobx vs rxjs

State Management Paradigm

  • redux:

    Redux follows a predictable state container model based on a unidirectional data flow. State is stored in a single immutable object, and changes are made through pure functions called reducers, ensuring that state transitions are predictable and traceable.

  • effector:

    Effector uses a reactive programming model that allows for fine-grained state updates. It focuses on events and stores, enabling developers to create a clear and efficient state management flow without unnecessary reactivity overhead.

  • mobx:

    MobX employs an observable-based approach, where state is automatically tracked and updated. This allows for a more natural and less verbose way to manage state, as components automatically react to changes in observable data.

  • rxjs:

    RxJS is centered around the concept of observables, which represent data streams. It allows for complex asynchronous operations to be handled in a declarative manner, making it easier to compose and manage multiple streams of data.

Learning Curve

  • redux:

    Redux has a steeper learning curve due to its strict architecture and the need to understand concepts like actions, reducers, and middleware. However, once mastered, it provides a powerful and predictable way to manage application state.

  • effector:

    Effector has a moderate learning curve, especially for those familiar with reactive programming concepts. Its API is designed to be intuitive, but understanding the underlying principles of reactivity may take some time for newcomers.

  • mobx:

    MobX is relatively easy to learn, especially for developers who are accustomed to object-oriented programming. Its use of decorators and observables can be quickly grasped, making it accessible for rapid development.

  • rxjs:

    RxJS can be challenging to learn due to its extensive set of operators and the reactive programming paradigm. Developers need to familiarize themselves with concepts like observables, subjects, and operators to effectively utilize RxJS.

Performance

  • redux:

    Redux can suffer from performance issues if not implemented correctly, particularly with large state trees and frequent updates. However, using techniques like memoization and selective rendering can help mitigate these issues and improve performance.

  • effector:

    Effector is designed for high performance, minimizing unnecessary re-renders by allowing developers to specify exactly which parts of the state should trigger updates. This leads to efficient rendering and optimal application performance.

  • mobx:

    MobX optimizes performance through its fine-grained reactivity, where only components that depend on changed observables are re-rendered. This can lead to significant performance improvements in applications with complex state dependencies.

  • rxjs:

    RxJS is highly performant for handling asynchronous data streams, but care must be taken to avoid memory leaks and excessive subscriptions. Proper management of subscriptions and using operators efficiently can enhance performance.

Extensibility and Middleware

  • redux:

    Redux is known for its extensibility, particularly through middleware like Redux Thunk and Redux Saga, which allow for handling asynchronous actions and side effects. This makes Redux a robust choice for complex applications requiring extensive state management capabilities.

  • effector:

    Effector is highly extensible, allowing developers to create custom events and stores easily. It also supports middleware-like functionality through its event system, enabling the implementation of side effects and additional logic seamlessly.

  • mobx:

    MobX is extensible through its decorators and can be integrated with other libraries and frameworks easily. However, it does not have a built-in middleware system like Redux, which may require additional setup for complex side effects.

  • rxjs:

    RxJS is inherently extensible, allowing developers to create custom operators and combine multiple streams of data. Its compositional nature makes it easy to build complex data flows and integrate with other libraries.

Community and Ecosystem

  • redux:

    Redux boasts a large and active community, with a wealth of resources, middleware, and tools available. Its popularity has led to extensive documentation and numerous tutorials, making it easier for developers to find support and best practices.

  • effector:

    Effector has a growing community and ecosystem, but it is smaller compared to Redux and MobX. It offers good documentation and resources, but developers may find fewer third-party libraries and integrations available.

  • mobx:

    MobX has a supportive community and a decent ecosystem, with various libraries and tools available for integration. Its simplicity and ease of use have contributed to its popularity among developers.

  • rxjs:

    RxJS has a strong community and is widely used in Angular applications. Its ecosystem includes numerous libraries and tools that leverage its capabilities, providing developers with ample resources and support.

How to Choose: redux vs effector vs mobx vs rxjs

  • redux:

    Opt for Redux if you need a predictable state container with a strict unidirectional data flow. Redux is well-suited for large applications where you want to maintain a clear structure, especially when working with complex state interactions and middleware for side effects.

  • effector:

    Choose Effector if you need a highly efficient state management solution that emphasizes performance and simplicity. It is particularly suitable for applications with complex state logic and requires fine-grained control over state updates without unnecessary re-renders.

  • mobx:

    Select MobX if you prefer a more intuitive and less boilerplate-heavy approach to state management. MobX is ideal for applications where you want to leverage observable state and automatic dependency tracking, making it great for projects that require reactive programming without much overhead.

  • rxjs:

    Choose RxJS if your application heavily relies on asynchronous data streams and event handling. RxJS is perfect for scenarios where you need to manage multiple streams of data, providing powerful operators for composing asynchronous and event-based programs.

README for redux

Redux Logo

Redux is a predictable state container for JavaScript apps.

It helps you write applications that behave consistently, run in different environments (client, server, and native), and are easy to test. On top of that, it provides a great developer experience, such as live code editing combined with a time traveling debugger.

You can use Redux together with React, or with any other view library. The Redux core is tiny (2kB, including dependencies), and has a rich ecosystem of addons.

Redux Toolkit is our official recommended approach for writing Redux logic. It wraps around the Redux core, and contains packages and functions that we think are essential for building a Redux app. Redux Toolkit builds in our suggested best practices, simplifies most Redux tasks, prevents common mistakes, and makes it easier to write Redux applications.

GitHub Workflow Status npm version npm downloads redux channel on discord

Installation

Create a React Redux App

The recommended way to start new apps with React and Redux Toolkit is by using our official Redux Toolkit + TS template for Vite, or by creating a new Next.js project using Next's with-redux template.

Both of these already have Redux Toolkit and React-Redux configured appropriately for that build tool, and come with a small example app that demonstrates how to use several of Redux Toolkit's features.

# Vite with our Redux+TS template
# (using the `degit` tool to clone and extract the template)
npx degit reduxjs/redux-templates/packages/vite-template-redux my-app

# Next.js using the `with-redux` template
npx create-next-app --example with-redux my-app

We do not currently have official React Native templates, but recommend these templates for standard React Native and for Expo:

npm install @reduxjs/toolkit react-redux

For the Redux core library by itself:

npm install redux

For more details, see the Installation docs page.

Documentation

The Redux core docs are located at https://redux.js.org, and include the full Redux tutorials, as well usage guides on general Redux patterns:

The Redux Toolkit docs are available at https://redux-toolkit.js.org, including API references and usage guides for all of the APIs included in Redux Toolkit.

Learn Redux

Redux Essentials Tutorial

The Redux Essentials tutorial is a "top-down" tutorial that teaches "how to use Redux the right way", using our latest recommended APIs and best practices. We recommend starting there.

Redux Fundamentals Tutorial

The Redux Fundamentals tutorial is a "bottom-up" tutorial that teaches "how Redux works" from first principles and without any abstractions, and why standard Redux usage patterns exist.

Help and Discussion

The #redux channel of the Reactiflux Discord community is our official resource for all questions related to learning and using Redux. Reactiflux is a great place to hang out, ask questions, and learn - please come and join us there!

Before Proceeding Further

Redux is a valuable tool for organizing your state, but you should also consider whether it's appropriate for your situation. Please don't use Redux just because someone said you should - instead, please take some time to understand the potential benefits and tradeoffs of using it.

Here are some suggestions on when it makes sense to use Redux:

  • You have reasonable amounts of data changing over time
  • You need a single source of truth for your state
  • You find that keeping all your state in a top-level component is no longer sufficient

Yes, these guidelines are subjective and vague, but this is for a good reason. The point at which you should integrate Redux into your application is different for every user and different for every application.

For more thoughts on how Redux is meant to be used, please see:

Basic Example

The whole global state of your app is stored in an object tree inside a single store. The only way to change the state tree is to create an action, an object describing what happened, and dispatch it to the store. To specify how state gets updated in response to an action, you write pure reducer functions that calculate a new state based on the old state and the action.

Redux Toolkit simplifies the process of writing Redux logic and setting up the store. With Redux Toolkit, the basic app logic looks like:

import { createSlice, configureStore } from '@reduxjs/toolkit'

const counterSlice = createSlice({
  name: 'counter',
  initialState: {
    value: 0
  },
  reducers: {
    incremented: state => {
      // Redux Toolkit allows us to write "mutating" logic in reducers. It
      // doesn't actually mutate the state because it uses the Immer library,
      // which detects changes to a "draft state" and produces a brand new
      // immutable state based off those changes
      state.value += 1
    },
    decremented: state => {
      state.value -= 1
    }
  }
})

export const { incremented, decremented } = counterSlice.actions

const store = configureStore({
  reducer: counterSlice.reducer
})

// Can still subscribe to the store
store.subscribe(() => console.log(store.getState()))

// Still pass action objects to `dispatch`, but they're created for us
store.dispatch(incremented())
// {value: 1}
store.dispatch(incremented())
// {value: 2}
store.dispatch(decremented())
// {value: 1}

Redux Toolkit allows us to write shorter logic that's easier to read, while still following the original core Redux behavior and data flow.

Logo

You can find the official logo on GitHub.

Change Log

This project adheres to Semantic Versioning. Every release, along with the migration instructions, is documented on the GitHub Releases page.

License

MIT