Why Use ReactJS: The Complete Guide to Building Your Next Website
Tags: javascript, reactjsdeveloper, hirereactjsdevelopers, react
Published: 2022-05-24 12:29:25

ReactJS has been all the rage in the JavaScript world over the past few years, with some of the most cutting-edge Web apps being developed with it.

And the credit goes to its flexibility and performance enhancements over previous generations of JavaScript frameworks.

Moreover, It’s used by big companies like Facebook, Instagram, Netflix, Airbnb, Yahoo!, and Dropbox to build their web interfaces, but what’s more important than these big names are the actual tools you get with ReactJS.

Now the question must arise, with so many great options out there, why use ReactJS? What makes this open-source JavaScript library stand out among the rest? Well, to answer that question, we have compiled this exclusive guide for you.

In this guide, we will explore why ReactJS is so popular and how you can use it to build your next website. We will also discuss some of the benefits of using ReactJS, including its speed and flexibility.

But before we dive into that, let's get to know what ReactJS is?

## What is ReactJS?

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/cf0aerc3x340tinl6gpb.png)

ReactJS is a well-known JavaScript library used for building interactive user interfaces. React was created by Facebook and is used by companies worldwide. React is fast, efficient, and easy to use. 

With React, you can create dynamic web applications that are responsive and interactive. In addition to that, ReactJS is perfect for developing single-page applications (SPAs) since it uses a virtual DOM, making it faster.

When the data in a component changes, React updates the component automatically without re-render the whole page. This makes SPAs much more responsive and fast, giving users a better experience. 

**Distinguish Features of ReactJS**


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/ga3dr9lpi22a7c4nqf3g.png)
source: Third Rock Techkno

**- The Virtual DOM**

React creates a virtual DOM, where it stores all the components. When there is any change in the component, React updates the virtual DOM instead of the actual DOM. This makes React very fast as it doesn't have to update the whole page every time there is a change in a component.

**- JSX**

JSX is a syntax extension of JavaScript. JSX makes it effortless to write and add HTML in React. With JSX, you can write concise and self-contained code that is easy to read and understand. It also makes it easier to write components in React.

**- Components**

In React, everything is a component. A component is a small and independent piece of code that can be reused. This makes it very easy to develop and maintain large projects as you can break down the task into smaller components.

**- Unidirectional Data Flow**

React follows a unidirectional data flow, which means that the data flows in one direction. This makes it easy to track the data as it flows through the different components. The data starts at the root component and flows down to the child components.

**- React Router**

React Router is typically a library that lets you easily route your React applications. It provides several features like route nesting, dynamic routes, etc.

**Benefits of ReactJS**

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/r04wc113kwftvsdn3ms9.png)

Source: Third Rock Techkno

**- The Learning Curve for React is Steep**

The learning curve for React is pretty steep. There are various new terminology and concepts to learn, such as “jsx”, “virtual DOM”, and “components”. However, once you overcome the initial hump, React is quite simple and easy to use. 

This way, one can spend more time building great things rather than worrying about the complexities of JavaScript. Enterprises such as Facebook, Netflix, Airbnb, and Yahoo! use React in production today.

**React Create Rich User Experiences**

React is often used to create rich user experiences. Using React, you can easily create reusable components that will look and behave the same across different devices and browsers. You can focus on creating great user experiences rather than worrying about compatibility issues.

React also uses a virtual DOM, which makes it very efficient to update the UI. The virtual DOM is a JavaScript representation of the actual DOM, and it is used to figure out what modifications are required to be made to the UI. 

This way, only the necessary parts of the UI will be updated, which makes things much faster and more efficient. You can also avail of ReactJS benefits by hiring Reactjs developers.

**Increases Developers’ Productivity**

ReactJS is a popular JavaScript library that helps developers create rich user experiences. It's declarative, efficient, and flexible, increasing productivity. 

React can help developers build fast and reliable web applications when used correctly. Additionally, ReactJS is easy to learn and has a small API surface - meaning there is less code to write and maintain. 

As a result, developers who use ReactJS can spend more time building features and less time debugging their code. 

**React has Widespread Community Support**

ReactJS has a large community of developers who are always willing to help out. The Reactiflux Discord server, for instance, has over 8,000 members who are ready and willing to provide support 24/7. 

In addition, Stack Overflow is full of React-related questions, with over 14,000 tagged questions and counting. And if you face any challenges, you can always reach out to the React team on Twitter; they're always happy to help. 

With such a wide range of support available, it's no wonder that React has become one of the most popular front-end frameworks in recent years.

**React is Scalable and Fast**

React is a JavaScript library for building user interfaces. It is known for being both scalable and fast. This makes it an excellent choice for large-scale web applications. 

Moreover, React is different from other JavaScript frameworks because it uses a virtual DOM. It means that only the parts of the DOM that have changed are updated, making React apps more responsive. 

React can also take advantage of advanced browser features such as accelerators and web workers. It makes React apps faster and more efficient. As a result, React is an excellent choice for enterprises that need to create large-scale web applications that are fast and responsive.


## What is React Used For?

![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/bv5qsxl13e7olbexfy4m.jpeg)

Source:Quora

**- Single Page Applications**

React is a JavaScript library that is most commonly used for building user interfaces and creating single-page applications. When used for single-page applications, React can handle changes in data and user interactions instantly without reloading the entire page. 

Thus it makes React apps much more responsive and fast, which is why it has become so popular in recent years. In addition to creating single-page applications, React can also be used to build websites, mobile apps, and even virtual reality experiences.

With so many different potential uses, it's no wonder that React has become one of the most popular JavaScript libraries in the world.

**- Large Scale Objects**

React is a well-known JavaScript library for creating large-scale web applications. React is unique because it uses a declarative approach to programming, making it easier to understand and develop complex and large-scale web applications.

In addition, React can efficiently update the UI in response to user interactions, making it ideal for creating interactive applications. 

While React is primarily used to build user interfaces, you can also use it for other purposes, such as creating a server-side rendering or mobile applications. You can also [hire dedicated ReactJS developers](https://www.valuecoders.com/hire-developers/hire-reactjs-developers?utm_source=Dev.to%28React.JS%29&utm_medium=Anu_B11&utm_id=React.JS) who can develop efficient apps for your business.

**- eCommerce Applications**

React is also perfect for creating eCommerce applications. Anyone who do online shopping knows that eCommerce applications need to be fast, responsive, and user-friendly. 

That's the reason so many enterprises are turning to React when building eCommerce applications. React is a JavaScript library that helps to create user interfaces with a high level of performance. 

In addition, React is easy to use with other libraries and frameworks, making it perfect for creating complex eCommerce applications. With React, you can create custom components that are reusable and easy to update. 

As a result, React-based eCommerce applications are quickly becoming the norm among online retailers. If you are also thinking of integrating ReactJS technology, you can easily avail yourself of top-class [ReactJS development services](https://www.valuecoders.com/react-js-development-services-company?utm_source=Dev.to%28React.JS%29&utm_medium=Anu_B11&utm_id=React.JS).

**IoT Applications**

As we know, React is a popular JavaScript library for building user interfaces. But it's not just limited to web applications - React is also perfect for building IoT applications. 

React's declarative syntax, and use of components make it well-suited for building interactive applications. And because React uses a virtual DOM, it can be used to build applications that run on low-power devices like smartwatches and home automation controllers. 

So if you're looking to build an IoT application, React is definitely worth considering.

## Top companies that use ReactJS


![Image description](https://dev-to-uploads.s3.amazonaws.com/uploads/articles/tn27py2cfw1knp9qlhz9.png)

Source: Spec India

**# Uber**

Uber is a ridesharing app that allows you to request a car with the tap of a button. It’s one of the most popular ridesharing apps in the world, and it’s built using ReactJS.

**# Airbnb**

Airbnb is a popular home-sharing platform that lets people rent out their homes to travelers. It’s used by millions of people, and it’s built with ReactJS.

**# Netflix**

Netflix is a streaming service for movies and TV shows. It has an extensive library of content, and it’s built using ReactJS.

**# Instagram**

Instagram is a popular photo-sharing app that’s owned by Facebook. It has over 500 million users, and it was built using ReactJS.

**# Yahoo! Mail**

Yahoo! Mail is a web-based email service with over 275 million users. It was the first web-based email service, and it was built using ReactJS.

**# Pinterest**

Pinterest is a social media platform that allows users to share images and videos. It’s popular for things like wedding planning and home décor. It was built using ReactJS.


## Summing Up!

As we can see, React is a popular JavaScript library that has many uses. It's perfect for creating large-scale web applications, eCommerce applications, IoT applications, and more. 

Plus, it's easy to use with other libraries and frameworks, making it the perfect choice for complex projects. 

So if you're looking to build an interactive application or an eCommerce website, React is definitely the way to go. You can also contact [ReactJS application development company](https://www.valuecoders.com/react-js-development-services-company?utm_source=Dev.to%28React.JS%29&utm_medium=Anu_B11&utm_id=React.JS) to help you develop world-class applications.