Importance of databases in blockchain technology — Blockchain technology has revolutionized various industries, including finance, supply chain, and healthcare. While it’s often associated with distributed ledgers, the role of databases in blockchain technology is crucial for ensuring data integrity, accessibility, and performance. Understanding the Blockchain Data Structure At its core, a blockchain is a distributed and decentralized ledger that stores a chain…

Deno vs Nodejs — In the world of JavaScript runtime environments, two names stand out: Deno and Node.js. While both can execute JavaScript code, they differ significantly in terms of design philosophy, security, and features. Let’s find out about their differences and when to use each of them. Deno Security-Centric Design: It was created as…

How to build a simple crud fastify application. — Fastify is a modern, efficient web framework for Node.js that is known for its speed and low overhead. it is an excellent choice for building APIs and web applications. Before we dive into building our Fastify CRUD project, ensure that you have Node.js and npm (Node Package Manager) installed on…

Know these tips if you are new to PostgreSQL — PostgreSQL, often referred to as Postgres, is a powerful, open-source relational database management system (RDBMS) that is widely used for managing and storing data. If you’re a beginner to PostgreSQL, you may find it a bit daunting at first. …

Explaining the distinction between “==” and “===” in JavaScript — JavaScript offers two comparison operators that seem quite similar but behave differently: == (double equals) and === (triple equals). The Equality Operator (==) The == operator is used for loose equality or abstract comparison. It checks if the values on both sides of the operator are equal, without considering their data types. …

A Beginner’s Guide — File uploads are a common requirement in web applications, and Express.js, a popular Node.js web framework, provides an easy way to handle them. Before we dive into handling file uploads, make sure you have the following installed: Node.js and npm (Node Package Manager) — You can download them from nodejs.org. …

Which One Is Better and Why? — Should you use a switch case or an if-else statement? if-else Statement Determine the Season const month = 7; if (month >= 3 && month <= 5) { console.log("Spring"); } else if (month >= 6 && month <= 8) { console.log("Summer"); } else if (month >= 9 && month <= 11) {…

Choosing the Right Loop in JavaScript — The Traditional for Loop The for loop is one of the most fundamental looping constructs in JavaScript. It provides fine-grained control over iterations. Here's how it works: Summing Array Elements const numbers = [1, 2, 3, 4, 5]; let sum = 0; for (let i = 0; i < numbers.length; i++) { sum += numbers[i]; } console.log('Sum:'…

When and how to use them for beginners Let’s explore these methods and how to use them daily — Object.keys(), Object.values(), and Object.entries() . An object is a collection of key-value pairs where the keys are strings (or symbols) and the values can be of any data type. …