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RxJS vs vuex: What are the differences?

Introduction

In this article, we will explore the key differences between RxJS and Vuex, focusing on their specific characteristics and use cases.

  1. Reactive Programming vs State Management: RxJS is a reactive programming library that allows developers to work with asynchronous data streams, making it suitable for handling real-time events, data manipulation, and event-driven architectures. On the other hand, Vuex is a state management pattern and library specifically designed for managing state in Vue.js applications. It provides a centralized store to control and organize the components' shared state.

  2. Observable Streams vs Centralized State: RxJS is based on the observable streams concept, where developers can create and manipulate data streams using various operators. These streams can represent any asynchronous event, such as user actions, network responses, or timer events. In contrast, Vuex focuses on managing the centralized state of a Vue.js application by providing a single source of truth for the entire application's state. Components can directly access and mutate the state from the store, enabling efficient state management.

  3. Handling Asynchronous Operations vs Purely Synchronous Operations: RxJS excels in handling asynchronous operations by providing powerful operators for combining, filtering, and transforming data streams. It allows developers to handle complex scenarios involving concurrent asynchronous tasks effectively. On the other hand, Vuex focuses mainly on managing synchronous state mutations. While Vuex can handle asynchronous operations with the help of plugins or external libraries, its primary focus is on maintaining a synchronous flow of mutations.

  4. Wide Applicability vs Vue.js Specific: RxJS is not limited to any specific framework and can be used in various JavaScript environments, including Angular, React, and Node.js. It provides a way to handle complex scenarios involving data manipulation and event-driven architectures in a generic manner. In contrast, Vuex is specifically designed for Vue.js applications, tightly integrated with the Vue.js ecosystem, and follows Vue.js conventions.

  5. Data Flow Control vs State Mutation Control: RxJS allows developers to control the flow of data streams by applying operators that manipulate and transform the incoming data. These operators enable developers to implement complex data flow control patterns like throttling, debouncing, and buffering. On the other hand, Vuex focuses on controlling the state mutation process by providing mutations, actions, and getters. It ensures that all state changes are performed in a predictable and controlled manner.

  6. Observables vs Getter/Setter Methods: In RxJS, developers work with observables, which are lazy and can emit multiple values over time. Observables provide operators to transform and combine streams, making it easier to handle complex asynchronous scenarios. In Vuex, developers use getter and setter methods to access and mutate the state within components. These getter and setter methods enforce a strict contract for accessing and updating the state, ensuring better control and predictability.

In summary, RxJS is a powerful reactive programming library that excels in handling asynchronous data streams, while Vuex is a specialized state management library specifically designed for Vue.js applications, providing centralized state management and ensuring predictable state mutations.

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Pros of RxJS
Pros of vuex
  • 6
    Easier async data chaining and combining
  • 3
    Steep learning curve, but offers predictable operations
  • 2
    Observable subjects
  • 2
    Ability to build your own stream
  • 2
    Works great with any state management implementation
  • 2
    Easier testing
  • 1
    Lot of build-in operators
  • 1
    Simplifies state management
  • 1
    Great for push based architecture
  • 1
    Documentation
  • 2
    Debugging
  • 2
    Zero-config time-travel
  • 2
    Centralized State Management
  • 1
    Easy to setup

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Cons of RxJS
Cons of vuex
  • 3
    Steep learning curve
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    What is RxJS?

    RxJS is a library for reactive programming using Observables, to make it easier to compose asynchronous or callback-based code. This project is a rewrite of Reactive-Extensions/RxJS with better performance, better modularity, better debuggable call stacks, while staying mostly backwards compatible, with some breaking changes that reduce the API surface.

    What is vuex?

    Vuex is a state management pattern + library for Vue.js applications. It serves as a centralized store for all the components in an application, with rules ensuring that the state can only be mutated in a predictable fashion. It also integrates with Vue's official devtools extension to provide advanced features such as zero-config time-travel debugging and state snapshot export / import.

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    What are some alternatives to RxJS and vuex?
    React
    Lots of people use React as the V in MVC. Since React makes no assumptions about the rest of your technology stack, it's easy to try it out on a small feature in an existing project.
    Ramda
    It emphasizes a purer functional style. Immutability and side-effect free functions are at the heart of its design philosophy. This can help you get the job done with simple, elegant code.
    MobX
    MobX is a battle tested library that makes state management simple and scalable by transparently applying functional reactive programming (TFRP). React and MobX together are a powerful combination. React renders the application state by providing mechanisms to translate it into a tree of renderable components. MobX provides the mechanism to store and update the application state that React then uses.
    redux-saga
    An alternative side effect model for Redux apps
    axios
    It is a Javascript library used to make http requests from node.js or XMLHttpRequests from the browser and it supports the Promise API that is native to JS ES6.
    See all alternatives