Introduction
Top 10:- Questions and Answers for improving and understanding Node JS Framework. Learn and Understand Node JS Framework like Pro.
1. Question: What is Node.js?
Answer: Node.js is an open-source JavaScript runtime environment that allows developers to execute JavaScript code on the server-side.
2. Question: Who created Node.js?
Answer: Node.js was created by Ryan Dahl and was first released in 2009.
3. Question: What is the core module in Node.js?
Answer: The core module in Node.js is a built-in module that provides essential functionality. Examples include "fs" for file system operations and "http" for creating web servers.
4. Question: How do you include external modules in a Node.js application?
Answer: You can include external modules using the require function. For example: const fs = require('fs');
5. Question: What is the Node Package Manager (NPM)?
Answer: NPM is a package manager for Node.js that allows developers to install, manage, and share JavaScript packages and libraries.
6. Question: What is the purpose of the "package.json" file in a Node.js project?
Answer: The "package.json" file contains metadata about the Node.js project, including its dependencies, scripts, and other configuration settings.
7. Question: How do you handle asynchronous operations in Node.js?
Answer: Asynchronous operations in Node.js are typically handled using callbacks, Promises, or the async/await syntax.
8. Question: What is the event-driven architecture in Node.js?
Answer: Node.js uses an event-driven, non-blocking I/O model, allowing it to handle multiple requests and events simultaneously.
9. Question: What is the primary use case for Node.js?
Answer: Node.js is commonly used for building scalable, real-time applications, such as web servers, APIs, and chat applications.
10. Question: What is the Node.js REPL?
vbnet**Answer:** The Node.js REPL (Read-Eval-Print Loop) is an interactive shell that allows developers to run JavaScript code interactively.
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