What is React: Working, Features, Advantages and more!

Updated On: January 4, 2023

Updated By: AppsRhino


In the modern era, the world cannot function without mobile and web applications. Everything has gone digital, including food ordering, transportation, and bank transactions. The effective frameworks that offer a smooth user experience ought to be commended. 

React is one such capable front-end library. You can read this blog post on "what is React" to learn the basics of the library, its features, and its advantages. 

What is React? 

A JavaScript-based UI development library is called React. Facebook and an open-source development community control it. React is a popular library in web development, even though it isn't a language. The library made its debut in May 2013 and is currently one of the most frequently used front-end libraries for web development.

Beyond UI, React includes several extensions supporting the architectural design of complete applications, including Flux and React Native.

How does React work? 

Consider the case where one of your friends shared a photo on Facebook. After liking the photograph, you started reading the comments as well. 

Now, as you read through the comments, you see that the number of likes has climbed up even without refreshing the website. ReactJS is what caused this magical count modification.

React is a declarative, effective, and adaptable JavaScript user interface library. ReactJS is an open-source front-end library that is only in charge of the application's view layer. 

The declarative approach used by React, which seeks to be both effective and versatile, makes it simpler to reason about your application. Each state in your application creates detailed views, and React will quickly update and present the ideal component whenever your data changes. The declarative view makes the code simpler and easier to debug.

Each component in a React application is in charge of rendering a distinct portion of reusable HTML. The ability to nest components within other components enables the construction of sophisticated applications from simple building blocks. 

A component may also keep track of its internal state; for instance, a TabList feature may keep a variable for the open tab in memory.

Main features of React 

Main features of React

Let's immediately look at the React JS features to see why React is so well-liked. It will help in our comprehension of React JS's operation.

1. Virtual DOM 

It gives flexibility and speeds up app development. The approach makes it easier for a web page to be replicated in React's virtual memory.

Thus, a virtual DOM serves as a representation of the original DOM.

It renders the UI again whenever the app is modified by updating the elements. As a result, development takes less time, money, and effort.

2. JSX or JavaScript XML

It is a markup syntax describing how the app's UI looks. Developers use JSX to generate React components because it makes the syntax look exactly like HTML.

One of React JS's most significant features is JSX, which makes it incredibly simple for developers to create the building blocks. 

3. React Native 

It enables native React JS programming for Android and iOS by utilizing native rather than web components.

In essence, this function modifies React code. It makes the code compatible with different platforms. It gives users access to those platforms' native functionality.

4. One-Way Data Binding

React uses a unidirectional data flow, preventing developers from directly modifying components and forcing them to utilize the callback functionality.

The Flux component of the JS app design allows data flow to be controlled from a single location. It gives developers more flexibility and control over the app.

5. Declarative UI

React code is now more readable and easier to fix errors thanks to this functionality. React JS is an excellent platform for creating new and engaging user interfaces.

6. Component-Based Architecture

A React JS-based app's user interface comprises several components, each with its unique logic written in JS.

As a result, developers can transmit the data throughout the program without affecting the DOM. React JS components are crucial in determining how the app looks and functions.

Benefits of React JS

React js has a lot of advantages, which is the key factor in this platform's enormous popularity.

1. A rapid learning curve

React JS is easy to understand compared to other frameworks, which has propelled it up the popularity rankings and allowed developers to finish their projects in record time. Online businesses may launch and operate quickly.

2. It Makes it possible to create rich user interfaces

An app's user interface (UI) is crucial today; an app with a robust UI that provides users with an engaging browsing and buying experience will undoubtedly have a much higher chance of success than one with a subpar UX.

React JS makes creating high-quality, engaging interfaces simple, primarily because of the capability of declarative components.

3. Aids in the Development of Custom Components

It is one of the main advantages of utilizing react. JSX makes it possible to create customized components tailored to your needs; it accepts HTML coding and simplifies sub-components rendering.

Additionally, it makes it easier to construct high-volume apps and create React Element trees from HTML mockups.

4. It Increases the Productivity of Developers

 It Increases the Productivity of Developers

Reusing components makes it possible for developers to publish the same digital items more than once.

As a result, even with frequent updates or modifications to components, which typically affect others, React does not present a challenge for developers.

Text fields, buttons, and other straightforward elements can be added by developers, who will then place them in wrapper components in a later stage before adding them to the root element.

Since each React component has its internal logic that can be easily operated, this has the advantage of improving code growth and maintenance.

5. Fast Rendering

You must establish the app structure from the beginning to create a sophisticated, high-load application.

The virtual DOM functionality is helpful in this situation since the DOM structure resembles a tree.

It implies that a tiny change made at the top-level layer can severely impact the app UI. Virtual DOM allows all modifications to be evaluated to assess the risk associated with each change before implementation.

In this method, app developers may provide a superior user experience and fast performance.

6. SEO Friendliness

SEO Friendliness

Any app needs to be liked by search engines to succeed, and fast load times and smooth rendering are both essential. If both boxes are checked, your app will appear higher in Google search results.

React's swift rendering functionality substantially reduces page load times, allowing businesses to rank their apps at the top of Google search results.

7. Practical Developer Toolbox

The react js framework includes various developer tools for React and Chrome from Facebook. These tools are beneficial for developers in finding parent and child components, observing their hierarchies, examining their current states, and performing other tasks.

Developers can employ cutting-edge technology in real, live projects through self-learning.

8. Improved Code Stability

React Js' downward data flow ensures that modifications to the child structure do not affect the parent structure.

Developers need to edit an object's state and make the necessary adjustments to change it; as a result, only one component will be updated while the others stay the same.

As a result, the code is more stable, and the app's performance is excellent.

9. Powerful Local Support

Numerous React developers post text and video tutorials online, respond to questions on various discussion groups and QA sites, and so forth. 

They contribute to enhancing the framework and facilitating the work of other programmers.

The drawbacks of React JS

React JS has several drawbacks, much like any other platform or framework, despite its many advantages.

Fortunately, there are few of them. 

1. Lack of sufficient documentation

Although there is a sizable community of React users and developers, more documentation is still required.

2. It addresses the user interface

Other programming languages must also be used to build the application.

3. Fast pace

Rapid development of React-based applications can be particularly demanding on developers due to its high rate.

4. Data migration from React Js can be laborious and time-consuming

If you need clarification on the app's future, you may need to choose an alternative front-end framework.

5. Long setup time

Long setup time

React setup can take longer than other well-known frameworks like Vue.


It's no surprise that React, a JavaScript-based front-end development framework, has become a popular choice today, given its enormous advantages for both developers and company owners.

A quick, engaging, and user-friendly mobile or web app can be created with this tool. Win-win for all parties. 

If you're looking to recruit some highly skilled React.js engineers, you've come to the correct place. Get in touch with AppsRhino immediately to employ React developers who can work remotely or on-site to provide you with a cost-effective, scalable, top-notch app development experience.


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