What Is ReactJS & Why You Should Use React.js For?

Quick Summary

If you’re unfamiliar with React.js, you’re probably wondering why it’s so popular and why you should use it in your applications. If so, you’ve come to the right place.

The most popular front-end JavaScript library for building Web applications is React.js and simply React are different ways to refer to React.js. Reactjs is used by the majority of Fortune 500 companies.

This blog will help you learn more about React.js or simply called React or Reactjs. All the questions like what is react js, what is reactjs used for, why use react, and so on would be answered here. React Js uses a special syntax JSX so that developers can use the combination of JavaScript and HTML. You should explore the best react UI framework libraries if you want the best UI for your ReactJs application.

What Is ReactJS?

React.js is an open-source JavaScript library used to create user interfaces for single-page applications. It handles the view layer for web and mobile apps. React also enables us to create reusable user interface components. Jordan Walke, a Facebook software engineer, was the first to create React.

React was first used in the Facebook newsfeed in 2011 as well as on Instagram.com in the year 2012. Developers can use React to create large web applications that can change data without reloading the page. React’s primary goal is to be simple, scalable and fast.

Why You Should Use React.js For Web Development?

React is Flexible

React is indeed very highly adaptable. React js used for web development and it’s flexibility is one of the main reasons why developers prefer to use it. Once you’ve mastered it, you can use it to create high-quality user interfaces on a wide range of platforms just at your fingertips.

Wondering why use react js for web development? Then flexibility is the main reason. React is not a framework but a library. React has evolved into such a remarkable tool thanks to its library approach. React was created with a single goal in mind which is to create web application components.

A React component in your web application can be anything like a Button, Text, Label, or Grid.

Easy to Testing

Traditional UI browser testing is time-consuming to set up. Testing in React, on the other hand, requires little to no configuration. Traditional UI browsers are required for testing, but React components can be tested quickly and easily using the node command line.

Traditional UI browser testing is time-consuming. However, command-line testing is quick and allows you to run a large number of test suites at once.   Using tools like Jest and Enzyme, React tests can be written quickly.

Great Developer Experience

The combination of rapid development and React’s small API results in an excellent developer experience. The React API is extremely simple to grasp and has very few concepts to learn. ReactJS is simply easier to grasp right away.

Because of its well-defined lifecycle, component-based approach, and use of plain JavaScript, React is very easy to learn, build professional web as well as mobile applications, and support. React employs a unique syntax known as JSX, which allows you to mix HTML and JavaScript.

This is not required; developers can still write in plain JavaScript, but JSX is far more user-friendly.

Great Performance

The React team realised that while JavaScript is fast, updating the DOM is slow. React reduces the DOM changes. And it has discovered the most efficient and intelligent method of updating DOM. React uses the Virtual DOM to track the values of each component’s state.

React compares the existing DOM state to what the new DOM should look like when a component’s state changes. Following that, it determines the least expensive way to update the DOM. React’s library is less than 6kb in size making it smaller than its competitors.

React’s simple programming model allows it to automatically change state when data is updated. As this occurs in the memory, so it is quick.

Community Support

Reactiflux is a community created specifically for React Developers. Over 110k community members are involved in resolving and sharing React-related issues. StackOverflow is a popular website among software developers.

There are over 250k questions about React and related libraries, as you can see. You can see the top trending React libraries to understand why ReactJs has huge community support. React’s popularity has grown steadily since 2015. It has a large and active community, with over 164k Stars on its GitHub Repository. It is one of GitHub’s top five repositories.

What is ReactJS used for?

As React’s popularity has grown, so has its ecosystem, which now covers a wide range of use cases.

1. Creating dynamic web applications with ease

With the introduction of Virtual DOM by Facebook developers, React JS has become one of the more efficient and less hampered technological solutions for application development.

DOM methods provide programmatic access to the tree and allow you to modify the structure, style, or content of a document. Because the DOM of modern websites is so large, updates can take a long time, slowing the web application’s overall performance.

Here you can see the main reasons what is react used for. The use of a Virtual DOM, which is smaller and more easily updated, has a significant impact on application performance.

The actual DOM is only updated after interaction between the website and the virtual DOM. As a result, the user experience is improved, performance is improved, and the facility is improved.

2. Better user experience and performance

There is no concept of a built-in container for dependency in React. One can simply use Require JS, Browserfly, and EcmaScript 6 modules which can be used through Babel, ReactJS-di to automatically channelise the dependency.

3. Data Binding

React employs one-way data binding, and Flux, an application architecture, controls the flow of data to components via a single control point – the dispatcher. Self-contained components of large ReactJS apps are easier to debug.

4. Simplicity

ReactJS is simply easier to grasp right away. Because of its component-based approach, well-defined lifecycle, and use of only plain JavaScript, React is very easy to learn, build professional web and mobile applications, and support. React employs a unique syntax known as JSX, which allows you to mix HTML and JavaScript. 

5. Single Page Application Development

A Single Page Application is the most well-known application of Reactjs. React Js is used for creating different types of single-page applications with minimum efforts. React SPA is browser-based and does not require the user to reload the page.

Furthermore, as a user navigates through a SPA, they will continue to interact with the same page rather than switching to a new page. Many well-known and widely used applications, such as Facebook, Gmail, and Google Maps, are SPAs.

6. Enterprise Applications Development

Many developers prefer React.js for enterprise application development because the entire application can be neatly broken down into smaller reusable UI elements. The component-based architecture of React.js enables rapid adaptation and implementation of legacy stack problems.

The stability and speed of React.js are growing, which is supported and improved by Facebook, and the popularity of this technology among developers are all factors that influence companies to use React.js.

7. Testability

ReactJS applications are extremely simple to test. React views can be viewed as state functions, allowing us to manipulate the state we pass to the ReactJS view and examine the output and triggered functions, actions, events, and so on

When to Use React?

ReactJs is an effective library that can be used for different types of reasons. You can use ReactJs to add different types of features and functionality to your application. React is used for building some of the most reliable and feature-rich web applications. ReactJs uses the mechanism of Virtual DOM to quickly fill the data in HTML DOM and it is one of the main reasons why we use React Js to build various apps. You can use ReactJs to have:

1. SPAs

• ReactJs is the best option to build various Single Page Applications (SPAs). In these SPAs, the content will be updated constantly with the help of Virtual DOM, Redux, and data flow.

2. Dynamic Websites

• If you want to create websites that can handle multiple users and requests simultaneously then ReactJs is the best choice for you. ReactJs is being used to create the most dynamic websites whose pages load quickly.

3. Dashboards and other Data Visualization Tools

• ReactJs can be used for server-side coding and client-side coding. Different types of data visualization tools require constant updates and ReactJs is efficient to display the webpage and dashboards without any delay.

4. SEO-friendly websites

• If you are trying to get SEO-friendly websites for your business then ReactJs can be the perfect choice for you. You will see that SEO-friendly websites are hard to get and if you want one then you should use the ReactJS library.

5. Customized solutions under a budget

• ReactJs is easy to learn and if you know HTML, CSS, and JavaScript then you can quickly have customized solutions at affordable prices.

React.js App Examples

With reference to the Stack share survey, over 9k plus companies are already using react as their technology. Below are a few examples of the same:

Airbnb

Airbnb began as a website with increasing traffic on mobile platforms with the arising need for better customer experience on mobile platforms and came up with a solution based on ReactJS which transformed the whole experience. They came up with React Native cross-platform framework. This resulted in the acquisition of new users, rapid React Native development and increased traffic.

Facebook

The products of ReactJS’s creators are undoubtedly among the applications that use it. Nowadays, Facebook is the most popular social network, making its mobile app one of the most widely used apps in the world. An open-source library was built to improve the mobile experience and meet Facebook’s high demands. React JS and then React Native played quite a role.

Graphiq

The graphic is a catchy example of React js being a platform that connects professionals. These professionals are those who want to hire designers with suitable expertise and talent which further leads to low budget and on-time projects with assured quality. This platform has used React js and is currently in a leadership position. 

Conclusion

It is very crucial to choose the suitable technology for your digital products and that brings the need of knowing React JS in-depth, its purpose, advantages, disadvantages, why use React, what is react.js exactly and so on. Without a doubt, this library is worthy of the attention it has received from the IT community. You should consult with a ReactJs development company if you are trying to have a ReactJs application for the growth of your business.

When considering the use of React.js, one should always keep in mind that it is still being developed and is heavily supported by Facebook. You can hire react developer that delivers fully-featured ReactJS applications for your business. To meet emerging needs the community is continually working on developing options and adapting features. But lastly, React js is a safer choice to make.

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