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ReactJS or Angular, Which One Should I Prefer?

With the spiraling technology reaching new heights, there are many frameworks available for developers to create a unique and state of the art web as well as mobile applications. But, different frameworks have different attributes and it becomes a challenge to choose the right framework for a JavaScript system. Before beginning any project for building a JavaScript app, software, or website, it is imperative to arrive at the right framework. What makes the selection of a framework so important is its direct impact on the scalability of the project. It also helps determine the timeline and maintainability and thus the future of the app.

Library Vs Framework

ReactJS is a JavaScript library which is basically used to create user interfaces, whereas Anguar is a JavaScript-based web app framework. In this blog post, we are going to discuss the features and advantages of each of these two frameworks and look at the difference between ReactJS and Angular.


- ReactJS

To begin with, ReactJS is a JavaScript library developed and maintained by Facebook. Many of the heavyweight MVVM frameworks find it hard to render a large amount of data, but it is not the case with ReactJS. When it comes to rendering, ReactJS only renders to the entity that has changed. This is the reason Facebook uses it in all its products including WhatsApp and Instagram. Its JavaScript library is used for creating responsive and attractive user interfaces. It was generally developed to solve the problem arising while building large applications. The reason why it has become popular in a very short period of time is due in part to its way of updating only the changes, making it extremely fast compared to other frameworks.

Table of Contents

    - Angular

    AngularJS is probably the most popular open-source framework used by the developers for developing web applications and application program interfaces (APIs). There are versions after version released for AngularJS and different versions use different attributes. The current version of Angular has been known for providing the developers with transparency, different attributes, and custom HTML elements for their functionality on numerous DOM elements. Its directives are versatile and are currently maintained by Google. Google uses it in Google Fiber and AdWords and it is unlikely to go outdated. It uses model view software architecture which benefits the developer as it automatically operates the suitable code for every browser as we know that Angular is cross-browser compliant. It has the ability to offer versatile out-of-the-box solutions as well as designs.


    - ReactJS

    ReactJS comes with numerous features and functionalities that help the developer with transparency and profitability;

    1. Efficiency: Managing the DOM operations is a time consuming, costly affair. But it’s necessary and must be done frequently. This alternatively reduces the existing JavaScript framework’s efficiency. However, ReactJS has its own way of dealing with such obstacles. By creating a virtual DOM, it overcomes the need of frequently performing DOM operations. Therefore, the virtual DOM considers all the operations that need to be performed way before actually performing it.

    2. Search Engine Optimization: The biggest challenge for many JavaScript frameworks is Search Engine Optimization (SEO). Developers can’t run away from the fact that for every web application they create, it is necessary that SEO is done well. The biggest milestone of ReactJS is that it is SEO friendly and the developer can easily place the SEO tools according to his/her needs in it.

    3. Simpler framework: The application program interfaces (APIs) in ReactJS are simpler and uncomplicated and thus, it proves to be a cakewalk for the developers for understanding the complex concepts easily.

    - Angular

    Compared to ReactJS, Angular framework comes with numerous features that are available to developer:

    1. Two-way data binding: AngularJS is designed in such a manner that any modifications or changes made are automatically updated in the system as well as user interface and vice-versa.

    2. Model View Controller: The basic principles behind the model view controller software architecture are incorporated by AngularJS.

    • Model- the object carrying the data is represented by the model.
    • View- visualization of the data present in the model is represented by the view.
    • Controller- controller holds the attributes of both model and view where the model object is controlled into the model object and the view is updated when the data is modified keeping the model and view separated.

    3. Dependency Injection: The dependency injection plays an important role where the developer doesn’t have to look and search for dependencies as it will let you request for it to obtain it.

    4. Directives: Custom widgets in the web applications are made with the help of directives.

    5. Community Support: Being an open-source front-end web application framework, AngularJS enjoys the support of global users or developers. This community of individuals addresses the challenges faced in creating apps using this framework. Developers, using Angular, across the world, discuss about the various issues faced and also strive to solve them. They collaborate and give their contribution to improve the functionalities of this framework. This not only increases trust in the framework but also makes it the most reliable one.


    - ReactJS

    JSX, Redux, and Flow are the most important components when we talk about ReactJS.

    1.JSX: JSX diminishes the possibility of using the classical approach of separating logic and markup. ReactJS allows the developer to combine the components with a XML-like language and write the markup directly into the JavaScript code. JSX is a flexible language similar to XML with some amazing benefits. In case, when a developer makes an error while writing the JSX markup, instead of making any progress with the work, its compiler will directly handle the error.

    2. Redux: To manage the state changes in a proper manner, ReactJS uses Redux library. It is an ideal version of Flux but with further simplifications. With Redux, the state of the application in full is represented as a single entity. These single entities are transformed using the reducers. Reducers are the functions which are implemented differently for different components. Most of the developers use Redux for carrying out medium and large-scale projects as it provides with the required flexibility to handle high functionalities.

    3. Flow: Flow is the product of Facebook developed for JavaScript as a type-checking tool. ReactJS has been benefited with Flow as it can check the common errors by parsing the code like null dereferencing and implicit casting. Unlike most of the type-checking tool, Flow doesn’t require the developer to convert into a new language by annotating the code for the tool to work.

    - Angular

    RxJS and TypeScript are the most important components of Angular.

    1. RxJS: To handle the asynchronous events and operations in the programming language, the developer uses a reactive programming library called RxJS. The Iterator and Observer patterns combine together with functional programming to create RxJS. Numerous operations like merging, splitting, filtering and mapping can be easily performed using RxJS as it treats a component as a continuous stream of values. RxJS comes in handy for the developer when they work with continuous data streams like web sockets.

    2. TypeScript: Microsoft has developed and maintains TypeScript which is actually a new language built on JavaScript. Being the superset of JavaScript, TypeScript has almost every feature from its newer version. Developers with the introduction of TypeScript have been writing powerful JavaScript languages. With the likes of type interference and annotations, it provides the developer with a powerful typing system which allows him/her to analyze the code statically. .NET and Java have played a crucial role in making TypeScript more unique and full of features.


    ReactJS Advantages:
    1. Subcomponent rendering is an essential part of any framework and ReactJS enables HTML quotes with the help of JSX syntax and uses this HTML tag for rendering the subcomponents. This syntax helps the framework to create machine-readable code.

    2. ReactJS is JS-centric, which makes it far more simple and consistent. On the other hand, AngularJS is HTML-centric.

    3. With the help of prompt rendering, the developer can easily access the Document Object Model operations.
    - ReactJS Disadvantages:
    1. The ReactJS library is known for using both architecture and structure from the Flux and this makes it a challenge for the beginners to handle the operations.


    - Angular Advantages:
    1. It has the support of individuals, at the global level, who are using the framework. This helps the developers in getting assured about the credibility of the framework because if he or she faces any issues then the community is there to help the developer out.

    2. Angular is two-way data bind which means that any modification or changes made are synced inside the model and view.
    - Angular Disadvantages:
    1. The security of the applications developed using Angular framework is compromised and you can’t rely on it.

    2. The main shortcomings of AngularJS is it is difficult to learn and is complex even after the fact that there is a detailed manual for it.


    React and Angular offer unique approaches towards web app development for startups, small and medium scale businesses. Both the frameworks are different in so many ways and the developers opt for the framework depending on the type of his/her project. Before starting a new project, you can check the attributes of both the frameworks to get the gist of the compatible framework for your project.

    Anita Shah

    3 posts

    I am Project Coordinator at topmost mobile app development company, XongoLab. I also like to write & sharing innovative ideas related to latest technology as well as web development, mobile apps & IT related news.