📚 Follow these steps to install Node.js on your Ubuntu LTS system. We will cover two methods: using Ubuntu’s default repositories and using NodeSource for more recent versions.

Method 1: Using Ubuntu Repository

Step 1: Update your package index

sudo apt update

Step 2: Install Node.js

sudo apt install nodejs

Step 3: Verify the installation

node -v

Step 4: Install NPM (Node Package Manager)

sudo apt install npm

Method 2: Using NodeSource

Step 1: Download NodeSource setup script for the desired version (e.g., for Node.js 14.x)

curl -sL https://deb.nodesource.com/setup_14.x | sudo -E bash -

Step 2: Install Node.js

sudo apt-get install -y nodejs

Note: If you encounter an error regarding missing curl, install it using sudo apt install curl.

🔍 Possible Errors and Solutions

Error: E: Unable to locate package nodejs
Solution: Ensure your package lists are updated with sudo apt update.

Error: node command not found or Command 'node' not found
Solution: Verify the installation or install node.js manually from the website.

🛠️ Common node.js Commands

1. Initialize a New node.js Project

npm init

2. Install a Package (e.g., Express)

npm install express

3. Run a node.js Application

node app.js

4. Update NPM Packages
npm update

FAQ:

What is a Node.js Package? – A Node.js package is a collection of JavaScript files that provide specific functionalities for Node.js applications. These can include libraries, frameworks, tools, and other reusable code components.

Package Management – Packages are managed using Node Package Manager (NPM), a command-line tool that facilitates the installation, updating, and removal of packages.

Common Uses – Node.js packages are used in various aspects of web development, including building server-side applications, creating APIs, handling database operations, and more.

Who Uses Node.js Packages? – Developers across different domains, such as web development, backend services, and even IoT applications, widely use Node.js packages for their projects.

 

 

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