Node.js is a runtime environment that allows you to execute JavaScript code outside of a browser. Built on the V8 JavaScript engine, it enables developers to build scalable and high-performance applications, particularly for backend development.
Non-blocking I/O: Handles multiple requests asynchronously without waiting for previous ones to complete.
Event-driven architecture: Uses events and callbacks for handling operations efficiently.
Single-threaded model: Efficiently manages concurrent connections using the event loop.
Cross-platform: Works on Windows, macOS, and Linux.
Rich Package Ecosystem: Leverages npm, the largest package repository.