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Docker & Kubernetes with Microservices Example
Docker & Kubernetes with Microservices Example What is Docker? Docker is a platform for containerizing applications. A container packages an …
Node.js Testing
Node.js Testing 1. Unit Testing What is Unit Testing? Unit testing involves testing individual components or functions in isolation from …
Node.js Authentication & Authorization
Node.js Authentication & Authorization 1. Password Hashing (bcrypt) Why Hash Passwords? Security: Protects passwords if database is compromised Irreversible: Cannot …
Node.js Database Integration
Node.js Database Integration SQL Databases 1. Connecting to MySQL Using mysql2 package (Native driver): bash npm install mysql2 javascript // …
Node.js RESTful APIs
Node.js RESTful APIs What is a REST API? REST (Representational State Transfer) is an architectural style for designing networked applications. …
Node.js Middleware in Depth
Node.js Middleware in Depth Middleware Execution Flow Understanding the Middleware Pipeline: Middleware functions are executed in the order they are …
Node.js Express.js Fundamentals
Node.js Express.js Fundamentals What is Express.js? Express.js is a minimal, flexible, and unopinionated web application framework for Node.js. It's the …
Node.js Creating a Basic Server
Node.js Creating a Basic Server HTTP Server with http Module Node.js has a built-in http module to create HTTP servers …
Node.js Asynchronous
Node.js Asynchronous JavaScript Understanding Asynchronous Programming in Node.js Node.js is single-threaded but handles thousands of concurrent connections through non-blocking I/O …
Node.js Core Built-in Modules
Node.js Core Built-in Modules 1. fs (File System) Module The fs module provides file system operations (reading, writing, updating, deleting …
Node.js Module System
Node.js Module System CommonJS Modules (require, module.exports) Node.js originally used CommonJS modules (still the default). Exporting from Modules: 1. Exporting …
Node.js Basics
Node.js Basics JavaScript Recap for Node.js Key Differences from Browser JS: No DOM - No document, window, or browser APIs …
Introduction to Node.js
Introduction to Node.js What is Node.js? Node.js is an open-source, cross-platform JavaScript runtime environment that allows developers to execute JavaScript …
CS Web Application Security (OWASP Top 10)
Cybersecurity Web Application Security (OWASP Top 10) 1. CORE CONCEPTS How Web Applications Work HTTP/HTTPS Protocol: HTTP (Hypertext Transfer Protocol): …
C++ Templates & STL
C++ Templates & STL 1. C++ Templates What are Templates? Templates are a powerful feature in C++ that allows writing …
C++ Advanced OOP & Operator Overloading
C++ Advanced OOP & Operator Overloading 1. Operator Overloading Operator overloading allows you to redefine the behavior of operators for …
C++ Object-Oriented Programming
C++ Object-Oriented Programming 1. Classes & Objects Classes - Blueprint/template for creating objects cpp #include <iostream> #include <string> using namespace …
C++ Arrays, Strings & Pointers
C++ Arrays, Strings & Pointers 1. Arrays One-dimensional Arrays cpp // Declaration and initialization int numbers[5]; // Declaration only (contains …
C++ Functions, Memory Basics, and Scope
C++ Functions, Memory Basics, and Scope 1. Functions: Declaration, Definition, and Call Basic Function Structure cpp #include <iostream> using namespace …
C++ Operators
C++ Operators 1. Arithmetic Operators Perform mathematical operations. Operator Name Example Result + Addition 5 + 3 8 - Subtraction …
