Suhail Roushan suhailroushan13

Scenario	What To Do
You ran `git add .` and node_modules got staged	• `git reset node_modules/` • Add `node_modules/` to `.gitignore` • `git add .gitignore` • `git commit -m "Fix: removed node_modules"` • `git push origin main/master`
You ran `git commit` and node_modules got committed	• `git rm -r --cached node_modules` • Add `node_modules/` to `.gitignore` • `git commit -m "Remove node_modules"` • `git push origin main/master`
You ran `git push` and node_modules is on GitHub	• `git rm -r --cached node_modules` • Add `node_modules/` to `.gitignore` • `git commit -m "Remove node_modules"` • `git push origin main --force`

Scenario	What To Do

Git and GitHub Notes

Overview

Git is a tool/software.
GitHub is a service (a platform).
Version Control System (VCS): Tracks files that are changed.

Hack Google Chrome and Make your Dinosaur Immortal

The game can be hacked pretty easily, making your dinosaur not even flinch at the sight of a cactus.

To hack the game, first go the the error message page where your dinosaur is hanging out.

Go ahead and press the space bar to start the game. Once the game starts, right-click and select Inspect” to open up Chrome DevTools, then select the Console tab.

Part - C: Backend Assignment

Title: Full Stack Backend System for Hotel Management with Advanced Security & Verification

Question 1: [50 Marks]

Design and implement a complete backend for a Hotel Management System using Node.js, Express, and MongoDB. The system should support User, Admin, and Staff roles and include authentication, logging, rate-limiting, and user verification.

	===================BACKEND============
	What is Node.js?
	Definition: Node.js is an open-source, cross-platform JavaScript runtime built on Chrome’s V8 engine.

	Purpose: Allows you to run JavaScript outside the browser — mainly for building servers, APIs, CLI tools, and real-time apps.

	Key Feature: Event-driven, non-blocking I/O → handles many connections efficiently.

	2009 – The Birth
	Creator: Ryan Dahl

	Git and GitHub Setup

	To Install Git In Ubuntu
	1. sudo apt update && sudo apt install git -y
	2. git --version


	To Install Git In MacOS

	1.brew install git

	sudo chown -R $USER:$USER ~/.npm
	sudo chown -R $USER:$USER node_modules package-lock.json
	export NVM_DIR="$HOME/.nvm"
	[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
	[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
	npm config delete proxy
	npm config delete https-proxy
	export PATH=$PATH:$(npm bin -g)

	ls
	ls -a
	these are the commands