2. What is Node.js?
• • Node.js is an open-source, cross-platform
runtime environment.
• • It allows JavaScript to run outside the
browser.
• • Built on Google's V8 JavaScript engine.
• • Commonly used for building scalable server-
side and networking applications.
3. Features of Node.js
• • Asynchronous and Event-Driven.
• • Fast Execution with V8 Engine.
• • Single-Threaded but Scalable.
• • Rich Ecosystem with npm (Node Package
Manager).
• • Supports Real-Time Applications.
5. Use Cases of Node.js
• • Building RESTful APIs.
• • Developing Real-Time Applications (e.g.,
Chat Apps).
• • Server-Side Rendering.
• • Creating Microservices.
• • IoT Applications.
6. Advantages of Node.js
• • High Performance for Scalable Applications.
• • Large Community and Ecosystem.
• • Easy to Learn for JavaScript Developers.
• • Cross-Platform Compatibility.
7. Disadvantages of Node.js
• • Single-Threaded Model may not be ideal for
CPU-intensive tasks.
• • Callback Hell: Complex nested callbacks can
make code difficult to read.
• • Lack of Strong Typing: May lead to runtime
errors.