Learn Reactjs in 60 Seconds #reactjs #javascript #mernstack

Reactjs is a popular JavaScript library used for building user interfaces. It is often used in conjunction with other technologies like Nodejs and MongoDB to create full stack web applications. In this tutorial, we will cover the basics of Reactjs in just 60 seconds.

1. Installation: To get started with Reactjs, you first need to install Nodejs on your machine. Nodejs comes with npm (Node Package Manager) which is used to install Reactjs. You can install Reactjs by running the following command in your terminal: npm install react react-dom

2. Create a new React app: Once you have Reactjs installed, you can create a new React app by running the following command in your terminal: npx create-react-app my-app

3. Create a component: Components are the building blocks of a React app. You can create a new component by creating a new JavaScript file and importing React at the top of the file. Here’s an example of a simple component:

import React from 'react';

function MyComponent() {
  return (
    <div>
      <h1>Hello, React!</h1>
    </div>
  );
}

export default MyComponent;

1. Render the component: Once you have created a component, you can render it in the main App component by importing it and using it like any other HTML tag. Here’s how you can render the MyComponent component in the App component:

import React from 'react';
import MyComponent from './MyComponent';

function App() {
  return (
    <div>
      <MyComponent />
    </div>
  );
}

export default App;

1. Run your React app: Finally, you can run your React app by navigating to the root folder of your app in the terminal and running the following command: npm start

And that’s it! You have now created a simple React app with a component that renders "Hello, React!" on the screen. Reactjs is a powerful tool for building dynamic and interactive web applications, and by mastering its fundamentals, you can create stunning UIs with ease.