Have you ever wondered, what’s the first thing the users analyze whenever they visit a website or access an application across devices? Yes, it is the user interface.

And for having an alluring user interface, React JS is preferred.

React JS is the leading front-end development technology being opted by every organization for enhancing their online platforms. There are several advantages of React JS, due to which it has become a convenient developer tool for creating responsive user interfaces.


In addition, as per the statistics evaluated in 2021, there are 40.14% of projects use React JS as the primary frontend technology, and the rest, 60%, is divided among the other tech stacks.

With the immense growth, utilization, and consideration of React JS, more and more enterprises are looking to embed it in their web applications. However, before gaining appropriate knowledge and getting an in-depth understanding of what React JS is and how it works, it can be a complex task to select it.

Don’t worry. We got your back for eliminating these difficulties.

In this article, you will learn about every aspect of React JS, and we assure you that you will be well-sounded with React JS after going through it.

Table of Contents

A Precise Technology Overview About React JS

React JS is an open-source JavaScript-based library, which is primarily developed and maintained by Facebook. It was innovated in the year 2011 with the objective to optimize the frontend development for running several interfaces at a single time.

For instance, when it was first created, Facebook used it to display, chatbox, feed updates, searches, and many more different interfaces on a single screen.

In the year 2013, it was publicly available and from then, there is no turning back. With its flexible architecture and cross-platform compatibility, many organizations started opting for it, leading to making it a renowned technology till now.

Let’s Understand the Advantages of React JS

ReactJS has gone through many advancements in the past few years and has become a popular frontend technology. Let’s get through its advantages and explore the reasons behind its vogue.

#1 Effortless Maintenance

Creating large applications with multiple integrations is a complex task; however, maintaining it with changing business requirements can be more complicated and expensive.

But, you don’t need to worry, as React JS got your back with its modular and flexible architecture, leading to modernizing each component independently without affecting others. In addition, objects defined for a particular element can be reassigned to other components to reduce the developer’s effort.

As a result, less time is consumed in modernization, code is maintained, and all this is performed economically.

#2 Fast Rendering

Handling high-volume user data and updating the application simultaneously is every enterprise’s primary business and technical goal.

React JS comprises of in-built functionality of virtual DOM, which makes the rendering faster and enhances the overall user experience. In addition, it makes the application lightweight, leading to boost performance and productivity.

Rending React

Moreover, it leverages the developers to build cutting-edge applications without considering state transitions, making the development timeline shorter. Also, Virtual DOM’s in-memory tree representation of real DOM makes the process sprightly accelerated between the call and display functions.

#3 Search Engine Friendly

Every service-providing organization wants its website to display at the top list of the search engines to reach the target audience. For this purpose, search engine optimization is performed.

Many websites cannot reach the top search pages, as JavaScript pages are complex to read and rank across search engines. But, the Virtual DOM feature of ReactJS renders the application more accurately and returns the web app as a typical web page.

Due to this, search bots are able to crawl through the React JS website and effortlessly analyze the relevance and rank the website on the search engine.

#4 Reliable Development Tools

Having authentic tools for crafting and debugging an application is an essential requirement of software creation. Furthermore, it aids both the development team and users in integrating and utilizing forefront features, respectively.

Several developments, designing, and debugging tools are available for fabricating React JS applications, and all these can be accessed freely over the internet. In addition, extensions of these tools are also available, leveraging developers to add tools to their Google Chrome and Firefox browsers flawlessly.

As a result, the development team can inspect hierarchies, as they are generated in Virtual DOM and it also enables them to isolate and extend the functionality of a particular component.

#5 Redux Facility

Redux helps to effortlessly store and manage the different states of large and complex applications for providing a seamless experience to the end-user. Hence, it is one of the most desirable elements found in React JS.

The primary purpose of Redux is to enable other elements to access different transition states without creating a bottleneck, interacting with the child module, and utilizing a callback. Additionally, it makes code debugging and testing easy and improves server rendering.

#6 Offers Mobile Application Development

React JS is probably seen as a library for building websites and web apps, but it has been upgraded to be considered for creating native mobile applications in recent years.

The phrase “learn once, write, anywhere” purely blends with the feature of React JS, as it allows to use same code structure and components for innovating mobile apps.

React Mobile App Development

The applications crafted using React JS can be installed, configured, and utilized on Android and iOS devices. In addition, its multi-platform compatibility aids the organizations to build a relationship with their users diversified across different operating systems.

With this open-source library, you will be capable of extending your digital presence from desktops to mobile devices.

#7 Stable and Streamline Code

Having a fault-tolerant frontend is the requirement of every organization, and you can entirely depend upon React JS for accomplishing this development goal.

Code for each unit is independently held in the React JS application, which aids the developers in performing the unit test on every component and precisely patching the potential loopholes. In addition, with a streamlined code structure, it is easier for any IT firm to reinforce the business solution and adjoin the features according to current business requisites.

Moreover, the stability of React JS refers to flawlessly integrating any change and smoothly running it on user’s devices, reducing the probability of system crash and clearing the barriers in the road to migrating the system to a newer version.

#8 Ample Community Support

If we compare React JS with any other open-source JavaScript library, its community is immensely growing, and thousands of people contribute to it daily.

Around 1200 contributions are made to the React JS repository with new templates and resolved code queries every day. You can quickly resolve the difficulties during development and even use pre-developed templates to shorten the time-to-market.

In addition, Facebook Inc. is the primary contributor to the React JS GitHub repository, which assures that only legitimate modifications are blended and malicious codes are prevented.

#9 Comes with JSX

JSX is an optional extended feature of React JS, used for creating components for the application.

The main objective of these tailored elements is to make code simple and leaner for the large enterprise-graded solutions. While writing code, you will benefit from it as it displays more errors, exceptions, and warning messages, which you can handle in initial phases and guarantee the delivery of a quality product.

Moreover, it helps the developers by providing a better insight of the working of the user interface inside the JavaScript code.

#10 Component Reusability

Components are the most creative way of building an application from scratch and then upgrading it to a futuristic, cutting-edge business solution.

React JS provides the architecture and ecosystem to build business software based on components and reuse each component multiple times. Also, experts can utilize a particular module built for a web application for a mobile application.

With this, efforts are reduced, the timeline is minimized, and it directly affects the cost to be minimal for development. In addition, it allows you to use the most optimized components in different applications to make them more appealing with a consistent look.

An Overlook to the Functioning: How to React JS Works

Have you ever witnessed web pages refreshed after adding a comment or liking a picture? No, right? This is where React JS comes into action and fabricates a charismatic frontend.

The overall structure of this tech is based on Virtual DOM (Document Object Model), leading each component and module to work independently. As a result, only a particular element is affected whenever a change is encountered and page reload after every action is also eliminated.

The most common example of ReactJS is your Facebook application. When you like a picture, comment on it and scroll your feed, the page is not reloaded after each action. Therefore, React JS-based solutions are preferred for having such functionality over business applications.

Along with the virtual DOM, Diffing Algorithm is also a significant component contributing to the smooth functioning, as it evaluates and stabilizes the overall solution. So, let’s have a closer look at its works for better insight.

A virtual DOM is created, which is linked with the original web application. Whenever a state is modified, the overall UI is changed in the virtual DOM rather than the original DOM.

How React Works

Further, diffing algorithm plays its part by constantly comparing the original and virtual DOM. Both these DOMs are in the tree structure, as it aids the algorithm to evaluate roots and branches more precisely.

Virtual Dom Read Dom

At last, any change discovered in virtual DOM is implemented in the original DOM, which is then reflected on the application.

Real Dom

When to use: Projects that Use React JS

You can use React JS for various projects, from single-page applications to complex web, native, hybrid and desktop solutions. In addition, you can go through the below-listed applications for more details.

  • Real-time chat Applications
  • Social Media Platforms
  • E-Commerce Solutions
  • Music and Video streaming Applications
  • Weather Application

App creation is not limited to this list only; you can utilize React JS for as many projects you want and flawlessly implement it to enhance responsiveness and look.

Wrapping Up

React JS is an emerging frontend development technology gaining popularity due to its features and scalable architecture. Several advantages can be availed by a developer and end-user, as it smoothens the task of app creation and offers faultless navigation.

It is one of the most advanced JavaScript-based libraries and can be appraised for constructing small to large and complicated applications. In addition, both web and mobile applications can be created using React JS with real-time data processing due to its virtual DOM and reusable components.

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