Node.js Installation and Setup
1. Introduction
Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine. It is used for building scalable network applications and is particularly well-suited for I/O-intensive tasks.
2. System Requirements
Before installing Node.js, ensure your system meets the following requirements:
- Operating System: Windows, macOS, or Linux
- Architecture: 32-bit or 64-bit
- Network: Internet connection for downloading Node.js
3. Installation Steps
Follow these steps to install Node.js on your operating system:
3.1. Windows and macOS
- Go to the Node.js download page.
- Download the installer for your operating system (Windows or macOS).
- Run the installer and follow the instructions in the setup wizard.
- Make sure to install the necessary tools when prompted, and enable the option to add Node.js to your PATH.
3.2. Linux
For most Linux distributions, Node.js can be installed using the package manager:
sudo apt update
sudo apt install nodejs npm
4. Verifying Installation
To confirm that Node.js and npm (Node Package Manager) were installed correctly, run the following commands in your terminal:
node -v
npm -v
This will display the installed versions of Node.js and npm respectively.
5. FAQ
What is Node.js?
Node.js is an open-source, cross-platform JavaScript runtime environment that executes JavaScript code outside of a browser.
How do I update Node.js?
You can update Node.js by downloading the latest version from the official Node.js website or using a version manager like nvm (Node Version Manager).
What is npm?
npm is the package manager for Node.js, allowing developers to install, share, and manage dependencies in their projects.