Software Alternatives, Accelerators & Startups

RxJS VS MobX

Compare RxJS VS MobX and see what are their differences

RxJS logo RxJS

Reactive Extensions for Javascript

MobX logo MobX

Simple, scalable state management
  • RxJS Landing page
    Landing page //
    2023-09-29
  • MobX Landing page
    Landing page //
    2024-04-24

RxJS features and specs

  • Asynchronous Programming Model
    RxJS allows you to work with asynchronous data streams with ease, enabling you to handle events, Ajax requests, and other asynchronous operations more effectively.
  • Composability
    RxJS operators enable developers to compose complex asynchronous operations concisely. This provides greater flexibility and power over handling streams of data.
  • Functional Programming Paradigm
    By using a functional programming approach, RxJS promotes cleaner and more predictable code. It encourages immutability and side-effect-free functions, enhancing code maintainability.
  • Rich Operator Set
    RxJS has a comprehensive set of operators, which allows developers to transform, combine, and filter data streams in various ways without needing to write a lot of boilerplate code.
  • Community and Ecosystem
    With its active community and extensive ecosystem, RxJS provides robust support, an abundance of learning resources, and numerous integrations with other libraries and frameworks.

Possible disadvantages of RxJS

  • Steep Learning Curve
    For developers unfamiliar with reactive programming concepts or functional programming, understanding RxJS can be challenging, potentially leading to difficulty in adopting it.
  • Overhead for Simple Tasks
    Using RxJS for simple asynchronous tasks might add unnecessary complexity compared to native JavaScript promises or async/await due to its powerful abstractions.
  • Bundle Size
    In certain circumstances, incorporating RxJS might lead to increased bundle sizes, which can be a concern for web performance if not managed properly.
  • Complex Debugging
    RxJS introduces a level of abstraction that can make debugging more complex, especially when dealing with multiple combined and transformed data streams.
  • Performance Overhead
    While RxJS is powerful, its generalized approach to handling asynchronous stream processing can introduce performance overhead if not used judiciously.

MobX features and specs

  • Simplicity
    MobX allows developers to manage state in a simple and straightforward manner. Its API is minimal and doesn't impose the rigid structure that other state management libraries might require.
  • Reactivity
    The library provides powerful reactive state management, meaning that it automatically updates the UI when the underlying data changes, minimizing boilerplate code.
  • Performance
    MobX optimizes re-rendering by tracking dependencies precisely, making updates efficient and reducing unnecessary renders.
  • Integration
    MobX can easily integrate with React and other JavaScript frameworks, making it flexible for use in various types of projects.

Possible disadvantages of MobX

  • Learning Curve
    While MobX is straightforward for simple use cases, understanding its reactivity and decorators might be challenging for beginners.
  • Scalability Concerns
    For very large applications, the unstructured nature of MobX might lead to spaghetti code if not managed properly, making it harder to maintain.
  • Less Community Support
    Compared to other state management libraries like Redux, MobX has a smaller community, which could mean fewer resources for troubleshooting and learning.
  • Loose Structure
    The lack of rigid structure, while contributing to simplicity, can result in code that is harder to manage, especially in larger applications where a more organized approach might be beneficial.

RxJS videos

RxJS is My Favorite Library

More videos:

  • Review - Reactive Programming with RxJS - James Churchill
  • Review - Tero Parviainen "Reactive Music Apps in Angular and RxJS"

MobX videos

MobX vs Redux (A MobX Redux comparison)

More videos:

  • Tutorial - MobX tutorial #1 - MobX + React is AWESOME
  • Review - Introduction to MobX & React in 2020
  • Tutorial - MobX in React Tutorial - Scalable State Management
  • Review - Battlefield Developer Tells The Secrets of MobX Nested Stores

Category Popularity

0-100% (relative to RxJS and MobX)
Javascript UI Libraries
36 36%
64% 64
Front-End Frameworks
36 36%
64% 64
JS Library
37 37%
63% 63
Application And Data
21 21%
79% 79

User comments

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Social recommendations and mentions

Based on our record, MobX seems to be more popular. It has been mentiond 20 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

RxJS mentions (0)

We have not tracked any mentions of RxJS yet. Tracking of RxJS recommendations started around Mar 2021.

MobX mentions (20)

  • Getting started with TiniJS framework
    States can also be organized in some central places (aka. stores). You can use Tini Store (very simple, ~50 lines) or other state management solutions such as MobX, TinyX, ... - Source: dev.to / about 1 year ago
  • Episode 24/13: Native Signals, Details on Angular/Wiz, Alan Agius on the Angular CLI
    Similarly to Promises/A+, this effort focuses on aligning the JavaScript ecosystem. If this alignment is successful, then a standard could emerge, based on that experience. Several framework authors are collaborating here on a common model which could back their reactivity core. The current draft is based on design input from the authors/maintainers of Angular, Bubble, Ember, FAST, MobX, Preact, Qwik, RxJS, Solid,... - Source: dev.to / about 1 year ago
  • React State Management in 2024
    Mutable-based: leverages proxy to create mutable data sources which can be directly written to or reactively read from. Candidates in this group are MobX and Valtio. - Source: dev.to / over 1 year ago
  • Show HN: Cami.js – A No Build, Web Component Based Reactive Framework
    Looks good! FWIW I always felt the observable pattern much more intuitive than the redux/reducer style. Something like https://mobx.js.org/ Things get hairy in both, but redux pattern feels so ridiculously ceremonially to effectively manage a huge global state object with a false sense of "purity". Observables otoh say "fuck it, I'm mutating everything, do what you want with it". - Source: Hacker News / over 1 year ago
  • React Redux
    It's important to note that Redux is just one of many options for global state management in a React application. Other popular options include MobX and the React context API.context API](https://reactjs.org/docs/context.html). - Source: dev.to / over 2 years ago
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What are some alternatives?

When comparing RxJS and MobX, you can also consider the following products

Zustand - Bear necessities for state management in React

vuex - Centralized State Management for Vue.js

Redux.js - Predictable state container for JavaScript apps

react-context - Context provides a way to pass data through the component tree without having to pass props down manually at every level.

Akka - Build powerful reactive, concurrent, and distributed applications in Java and Scala

axios - Promise based HTTP client for the browser and node.js - axios/axios