Welcome to Node.js

Node.js is an open-source, cross-platform JavaScript runtime that allows developers to build server-side applications. It uses an event-driven, non-blocking I/O model that makes it lightweight and efficient. If you are new to Node.js, here are some steps to help you get started:

Install Node.js

The first step is to install Node.js on your machine. You can download the installer from the official Node.js website and follow the installation instructions. Once installed, you can verify the installation by running node -v in your terminal to see the installed version of Node.js.

Create a Simple Node.js Application

Once Node.js is installed, you can create a simple “Hello, World!” application to get a feel for the Node.js environment. Create a new file called app.js and write the following code:

      
        const http = require('http');

        const server = http.createServer((req, res) => {
          res.statusCode = 200;
          res.setHeader('Content-Type', 'text/plain');
          res.end('Hello, World!');
        });

        server.listen(3000, 'localhost', () => {
          console.log('Server running at http://localhost:3000/');
        });
      
    

Run Your Node.js Application

To run your Node.js application, open a terminal and navigate to the directory where app.js is located. Then, run the following command:

      
        node app.js
      
    

Once your server is running, open a web browser and go to http://localhost:3000/. You should see “Hello, World!” displayed on the page.

Learn More About Node.js

Now that you have a simple Node.js application up and running, you can explore the various features and capabilities of Node.js. There are many resources available online, including documentation, tutorials, and community forums. You can also experiment with building more complex applications and integrating with other technologies.

Node.js is a versatile and powerful platform for building server-side applications, and getting started with it is the first step towards unlocking its potential. Happy coding!