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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.

NEXT: Main Features of Node.js