1.Basics.md

100 Node Questions (Basics - 1)

Q1. What is Node.js?

• Node is neither a language nor a framework.

• Node/Node.js is a runtime environment for executing JavaScript code on the server side.

Every language needs a framework to simplify and make the things easier

Q2. How Node is a runtime environment on server side? What is V8?

• Browser execute JavaScript code on the client side, and similarly, Node.js executes JavaScript code on the server side on the server side.

• V8 is a Javascript engine for the JavaScript language. (Client - Server side)

Q3. What is the difference between Runtime environment & Framework?

• Runtime Environment: Primarily focuses on providing the necessary infrastructure for code execution, including services like memory management and I/O operations.

• Framework: Primarily focuses on simplifying the development process by offering a structured set of tools, libraries, and best practices.

Q4. What is the difference between Node.js & Express.js?

• Node.js is a runtime environment that allows the execution of JavaScript code server-side.

• Express.js is a framework built on the top Node.js.

  • It is designed to simplify the process of building web applications and APIs by providing a set of features like a simple routing system, middleware support, etc.

Q5. What are the differences between Client-Side (Browser) & Server-Side (Node.js)?

Feature	Client-Side (Browser)	Server-Side (Node.js/Server)
Environment Location	Runs on the user's web browser.	Runs on the server.
Primary Languages	HTML, CSS, JavaScript.	JavaScript
Document/Window/ Navigator/ Event Objects	Yes	No
Request/Response/ Server/ Database Objects	No	Yes
Responsibilities	Handles UI display, interactions, and client-side logic.	Handles business logic, data storage/ access, authentication, authorization etc.

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