Mastering Node js Basics Your Comprehensive Interview Guide

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Dive deep into the fundamentals of Node.js with our comprehensive interview guide. Whether you're gearing up for an interview or seeking to strengthen your Node.js skills, this guide covers the essentials from the basics of asynchronous programming to creating RESTful APIs. Explore the core concepts, gain insights into best practices, and elevate your Node.js expertise. Unleash the power of server-side JavaScript and embark on a journey to becoming a Node.js pro.

**In Detail:**
1. **Introduction to Node.js:**
- Defining Node.js and its role as a server-side JavaScript runtime.
- Understanding the event-driven, non-blocking architecture of Node.js.

2. **Node.js Installation and Setup:**
- Step-by-step guide to installing Node.js on various platforms.
- Setting up a basic Node.js project and initializing a package.json file.

3. **Understanding npm (Node Package Manager):**
- Navigating npm commands for package installation, project management, and dependency tracking.
- Exploring the npm registry and managing project dependencies.

4. **Asynchronous Programming in Node.js:**
- Grasping the concept of callbacks and the event loop in asynchronous programming.
- Handling asynchronous operations with callbacks, Promises, and async/await.

5. **Creating a Simple Server with Express.js:**
- Introducing Express.js as a minimalist web application framework for Node.js.
- Building a basic server and defining routes using Express.js.

6. **Working with Modules in Node.js:**
- Understanding the module system in Node.js and creating modular applications.
- Importing and exporting modules using `require` and `module.exports`.

7. **File System Operations in Node.js:**
- Performing file read, write, and other file system operations in Node.js.
- Leveraging the `fs` module for interacting with the file system.

8. **Handling HTTP Requests and Responses:**
- Processing HTTP requests and generating responses in a Node.js server.
- Building RESTful endpoints and handling different HTTP methods.

9. **Middleware in Express.js:**
- Exploring middleware and its role in request processing in Express.js.
- Creating custom middleware functions and using third-party middleware.

10. **Node.js Event Emitters and Events:**
- Understanding the EventEmitter class and event-driven programming in Node.js.
- Emitting and handling custom events in Node.js applications.

11. **Introduction to WebSocket Communication:**
- Overview of WebSocket communication and its real-time capabilities.
- Implementing WebSocket communication in a Node.js application.

12. **Deploying Node.js Applications:**
- Strategies for deploying Node.js applications to various hosting platforms.
- Configuring production-ready Node.js environments.

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