First Program in Node Js

• To write your first program in Node.js, you can create a simple script that outputs a message to the console. Here's a step-by-step guide:

• Install Node.js: If you haven't already, make sure to install Node.js by following the steps mentioned in the previous lectures.

• Create a New File: Open your preferred text editor or code editor (e.g., Visual Studio Code, Sublime Text, Atom) and create a new file. Save it with a `.js` extension. For example, you can name it `first-program.js`.

• Write Your Node.js Code: In your new file, write a simple JavaScript program. Let's create a program that prints a greeting message to the console.

    // first-program.js

    console.log("Hello, Node.js!");

• Run Your Program: Open a terminal or command prompt and navigate to the directory where you saved your `first-program.js` file. Use the `node` command followed by the filename to execute your script.

    node first-program.js

• You should see the output:

    Hello, Node.js!

• Congratulations! You've just written and executed your first Node.js program. This example is very basic, but it demonstrates the core principle of running JavaScript code on the server side using Node.js. As you continue learning, you can explore more advanced features and build more complex applications with Node.js.