Interview Preparation: Top 50 Node.js Questions You Must Know

Node.js

Node.js has become an essential part of the modern web development ecosystem, enabling developers to build scalable and high-performance applications. If you’re preparing for a Node.js interview, it’s crucial to be well-versed with both fundamental concepts and advanced features. In this article, we’ll cover 50 key questions that will help you ace your Node.js interview.

1. What is Node.js?

Node.js is a runtime environment that allows you to execute JavaScript code on the server side. It is built on Chrome’s V8 JavaScript engine.

2. How does Node.js work?

Node.js uses an event-driven, non-blocking I/O model, which makes it lightweight and efficient, suitable for real-time applications.

3. What are the main features of Node.js?

• Asynchronous and Event-Driven
• Fast Execution with V8 Engine
• Single-Threaded but Highly Scalable
• No Buffering
• Cross-Platform

4. What is npm?

npm (Node Package Manager) is the default package manager for Node.js. It allows developers to install, share, and manage dependencies…