Introduction to ReactJS - Create Your First React App

Learn how to set up ReactJS from scratch and build your first Hello World application.

ReactJS is one of the most popular JavaScript libraries for building user interfaces, especially single-page applications. In today’s article, you will learn how to set up your very first ReactJS project from scratch.

We will start by installing Node.js and npm, which are essential tools to run React. Then we will use create-react-app, a popular boilerplate setup tool, to quickly scaffold a new React project. After the setup, you’ll run your app and see a default screen on localhost. This simple “Hello World” project is the foundation that every developer must understand before diving deeper into ReactJS.

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Follow the easy step-by-step process and get ready to start your exciting journey into the world of React development!

Install Node.js & npm
Install create-react-app
Run your first app

Code Step 1:-

```
   npx create-react-app my-first-app
```
```
   cd my-first-app
```
```
   npm START
```

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FAQ (Frequently Asked Questions)

What is the concept of ReactJS?

js that allows developers to write HTML elements. Rendering Elements in React involves efficiently updating the user interface by creating and updating virtual representations of the UI components. Components in React are modular, reusable building blocks for UI elements.

What is ReactJS for beginners?

React is a JavaScript library for building user interfaces. React is used to build single-page applications. React allows us to create reusable UI components.

Why is ReactJS used?

ReactJS is used to build dynamic and interactive user interfaces for websites and web applications, offering advantages like component reusability, performance enhancements, and a large community supporting its use. It simplifies front-end development, making it easier to create complex web applications with a smooth user experience.

Vijay Kumar

Hi, This is Vijay Kumar behind the admin and founder of w3web.net. I am a senior software developer and working in MNC company from more than 8 years. I am great fan of technology, configuration, customization & development. Apart of this, I love to write about Blogging in spare time, Working on Mobile & Web application development, Salesforce lightning, Salesforce LWC and Salesforce Integration development in full time. [Read full bio] | | The Sitemap where you can find all published post on w3web.net

Introduction to ReactJS – Create Your First React App