Node.js Setup

Setting up Node.js on your system is the first step to leveraging its power for building scalable, efficient applications. Follow the guide below to install Node.js and get started with your first application.

Prerequisites

• A computer with Windows, macOS, or Linux.
• Basic knowledge of JavaScript.

 

Steps to Set Up Node.js

1. Download Node.js

• Visit the Node.js official website.
• Download the LTS (Long-Term Support) version for stability or the Current version for the latest features.

2. Install Node.js

• Run the downloaded installer.
• Follow the on-screen instructions to complete the installation.
• Verify installation by opening a terminal and running:

node -v
npm -v

Output:

mkdir my-node-app
cd my-node-app

3. Set Up a Node.js Project

• Create a new directory for your project:

mkdir my-node-app
cd my-node-app

• Initialize a new Node.js project:

npm init -y

Output: 

A package.json file will be created with default settings.

4. Write Your First Node.js Application

• Create a file named app.js:

touch app.js

• Open the file in your code editor and add the following code:

5. Run the Application

• Start your server by running:

node app.js

• Open your browser and navigate to http://localhost:3000. You should see the message "Hello, Node.js!".

 

Summary

Node.js setup involves downloading and installing the runtime, initializing a project, and creating your first application. Once installed, you can start building efficient and scalable applications with ease. Whether you're creating APIs, web servers, or real-time apps, Node.js provides the foundation to bring your ideas to life.