What is Node.js?

Node.js is an open-source, cross-platform JavaScript runtime environment that executes JavaScript code outside the web browser.

Key features of Node.js:

• Asynchronous and event-driven
• Single-threaded yet highly scalable
• Uses the V8 JavaScript engine by Google

How does Node.js work?

Node.js is a runtime environment that executes JavaScript code outside of a web browser. It is based on the V8 JavaScript engine developed by Google.

Key Points:

• Non-blocking I/O: Node.js is known for its asynchronous and event-driven architecture, which allows it to process multiple requests simultaneously without blocking the execution of other tasks.
• Single-threaded: Despite being single-threaded, Node.js can handle concurrent operations by utilizing event loops and callbacks.
• Modules: Node.js has a module-based system that enables developers to modularize their code and reuse components across different applications.