Free 2024 Edition: Full React JS Course for Beginners with Website Project

Welcome to the React JS Full Course for Beginners with Website Project tutorial! In this detailed guide, we will cover everything you need to know to get started with React JS and build a website project from scratch. Whether you’re completely new to React or looking to enhance your skills, this tutorial is perfect for you.

Before we dive into the tutorial, let’s first understand what React JS is. React JS is a popular JavaScript library for building user interfaces. It allows developers to build interactive and dynamic web applications with ease. React uses a component-based architecture, making it easy to reuse code and create modular and scalable applications.

In this tutorial, we will cover the following topics:

1. Setting up the development environment
2. Understanding the basics of React
3. Creating a new React project
4. Building components
5. Styling components with CSS
6. Managing state and props
7. Working with forms and events
8. Fetching data from an API
9. Building a website project

Let’s get started!

Setting up the development environment:
To start building with React, you need to have Node.js and npm installed on your computer. You can download and install Node.js from the official website (https://nodejs.org/). npm comes bundled with Node.js, so you don’t need to install it separately.

Once you have Node.js and npm installed, you can create a new React project using Create React App. Open your terminal and run the following command:

npx create-react-app my-react-app

Replace my-react-app with the name of your project. This command will create a new React project in a folder with the specified name. Navigate to the project folder by running:

cd my-react-app

Understanding the basics of React:
React applications are built using components. Components are reusable pieces of code that define how a part of the user interface should look and behave. In React, components can be functional or class-based.

Functional components are simple functions that take props as an argument and return JSX (JavaScript XML) to describe the component’s structure. Class-based components are JavaScript classes that extend React.Component and have a render method to define the component’s UI.

Creating a new React project:
Now that you have set up your development environment and understood the basics of React, let’s create a new React project. Open your terminal and run the following command:

npx create-react-app my-react-app

Replace my-react-app with the name of your project. This command will create a new React project in a folder with the specified name. Navigate to the project folder by running:

cd my-react-app

Building components:
In React, components are the building blocks of your application. Each component represents a part of the user interface and can be reused throughout your application. To create a new component, you can define a function or a class that returns JSX.

Functional components:
Functional components are simple functions that take props as an argument and return JSX. Here’s an example of a functional component:

import React from 'react';

function Hello() {
  return <h1>Hello, World!</h1>;
}

export default Hello;

Class-based components:
Class-based components are JavaScript classes that extend React.Component and have a render method to define the component’s UI. Here’s an example of a class-based component:

import React, { Component } from 'react';

class Hello extends Component {
  render() {
    return <h1>Hello, World!</h1>;
  }
}

export default Hello;

Styling components with CSS:
In React, you can style components using CSS. You can add styles directly to your components using inline styles or import external CSS files. Here’s an example of styling a component with inline styles:

import React from 'react';

function Header() {
  const headerStyle = {
    color: 'red',
    fontSize: '24px',
    fontWeight: 'bold'
  };

  return <h1 style={headerStyle}>Welcome to my website!</h1>;
}

export default Header;

Managing state and props:
In React, state and props are used to manage data and pass data between components. State is mutable and can be updated within a component, while props are immutable and passed from parent to child components.

To manage state in a class-based component, you can use the constructor method to initialize state and setState to update state. Here’s an example of managing state in a class-based component:

import React, { Component } from 'react';

class Counter extends Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0
    };
  }

  incrementCount = () => {
    this.setState({ count: this.state.count + 1 });
  }

  render() {
    return (
      <div>
        <p>Count: {this.state.count}</p>
        <button onClick={this.incrementCount}>Increment</button>
      </div>
    );
  }
}

export default Counter;

Working with forms and events:
Forms are a common part of web applications and React makes it easy to work with forms using controlled components. Controlled components have their state managed by React and the input values are controlled by state.

To handle form submissions and events in React, you can use the onChange event to update state as the user types in the input fields. Here’s an example of a simple form component:

import React, { Component } from 'react';

class Form extends Component {
  constructor(props) {
    super(props);
    this.state = {
      name: ''
    };
  }

  handleChange = (e) => {
    this.setState({ name: e.target.value });
  }

  handleSubmit = (e) => {
    e.preventDefault();
    alert('Hello, ' + this.state.name);
  }

  render() {
    return (
      <form onSubmit={this.handleSubmit}>
        <input type="text" value={this.state.name} onChange={this.handleChange} />
        <button type="submit">Submit</button>
      </form>
    );
  }
}

export default Form;

Fetching data from an API:
In React, you can fetch data from an API using the fetch API or libraries like axios. Fetching data from an API is a common task in web applications and React makes it easy to do so.

To fetch data from an API in React, you can use the componentDidMount lifecycle method to make the API call. Here’s an example of fetching data from an API:

import React, { Component } from 'react';

class UsersList extends Component {
  constructor(props) {
    super(props);
    this.state = {
      users: []
    };
  }

  componentDidMount() {
    fetch('https://jsonplaceholder.typicode.com/users')
      .then(response => response.json())
      .then(data => this.setState({ users: data }));
  }

  render() {
    return (
      <div>
        {this.state.users.map(user => (
          <p key={user.id}>{user.name}</p>
        ))}
      </div>
    );
  }
}

export default UsersList;

Building a website project:
Now that you have learned the basics of React and its key concepts, it’s time to build a website project using React. You can combine everything you have learned so far to build a complete website with multiple components, state management, forms, events, and data fetching.

Start by planning the structure of your website and creating the necessary components. You can create a layout component to structure the different parts of your website and then add the individual components for each section.

Here’s a simple example of a website project structure with multiple components:

import React from 'react';
import Header from './Header';
import About from './About';
import Services from './Services';
import Contact from './Contact';

function App() {
  return (
    <div>
      <Header />
      <About />
      <Services />
      <Contact />
    </div>
  );
}

export default App;

In this example, we have created a website project with four components: Header, About, Services, and Contact. Each component represents a different section of the website, such as the header, about us, services, and contact form.

You can customize and style each component according to your requirements using CSS or external libraries like Bootstrap. Experiment with different layouts, colors, and styles to create a unique and visually appealing website.

Congratulations! You have successfully completed the React JS Full Course for Beginners with Website Project tutorial. You now have the foundational skills to build dynamic and interactive web applications using React. Keep practicing and exploring new concepts to further enhance your skills in React development.

Thank you for following along with this tutorial. If you have any questions or need further assistance, feel free to reach out to us. Happy coding!