How QR Codes Work: A Detailed Breakdown
Debojyoti Chatterjee
Quick Response codes, generally known as QR codes, are almost everywhere in our daily lives. Whether you’re scanning a payment link at a restaurant, checking product information at a supermarket,…
How QR Codes Work: A Detailed Breakdown
Quick Response codes, generally known as QR codes, are almost everywhere in our daily lives. Whether you’re scanning a payment link at a restaurant, checking product information at a supermarket,…
Exploring Various Approaches to Deploy Microservices
The emergence of microservices architecture has transformed the landscape of modern application development and deployment. Departing from the conventional monolithic approach, where applications are deployed as singular entities, microservices dismantle…
Understanding package.json and package-lock.json
When you are building on any JavaScript application (for example Node.js or ReactJS), you quickly discover two files package.json and package-lock.json. These two files are very important and form the…
What is SSO (Single Sign-On)? How SSO Works?
What is Single Sign-On (SSO)? We all know ho we can log into Gmail and then access YouTube, Google Drive, and Google Maps without entering your password again? That’s the…
Haversine Formula and Its Implementation in JavaScript and MongoDB
When developing location-based applications, calculating the distance between two points on Earth is essential. Haversine formula, a popular mathematical formula used to compute the shortest distance between two points on…
MongoDB Query and Projection Operators
MongoDB is one of the most commonly used NoSQL databases. Query operators and projection operators in MongoDB offer fine control over which documents are retrieved and what format to apply…
NodeJS: Cluster, Worker Threads, and Child Processes
Understanding NodeJs Concurrency NodeJs has single-threaded, event-driven architecture. But sometimes, we need to handle computationally intensive tasks for which we may need to leverage multiple CPU cores and handle computationally…
How HTTPS Works: Secure Web Communication.
Have you ever noticed that green padlock in your browser’s address bar? Or Why some fishy websites show a “Not Secure” warning? Well, this about HTTPS – the security protocol…
Upgrading to Linux Mint 22 Cinnamon
Preparing for the Upgrade System Requirements and Compatibility Checks Before initiating the upgrade, verify your hardware meets the minimum requirements: The first thing is to check your current version using…
Database Locking and Transaction Isolation: Balancing Performance and Consistency
What is Database Locking and Why do we need it? Database locking is a mechanism that prevents multiple users or processes from accessing or modifying the same data simultaneously in…