Hariharan's Blog

Let's Build a Simple API Using Node.js and Express.js             Building an API ( A pplication P rogramming I nterface) is a fundamental skill for any developer. APIs enable communication between different software applications, making it easier to access and share data. In this tutorial, we'll guide you through creating a simple RESTful API using Node.js and Express.js . What We’re Building ..? We'll create a basic API to manage a list of books. The API will have endpoints to:    •   Retrieve all books    •  Add a new book    •  Update a book   •  Delete a book Prerequisites: Before diving in, ensure we have the following installed:      • Node.js: Download it from  Node.js official website. ​​​​​​​      • npm (Node Package Manager): Comes bundled with Node.js.      • A code editor like Visual Studio Code. Step 1: Setting Up the Project 1. Cre...

Machine Learning ? A Simple Explanation:           Have you ever wondered how Netflix predicts your favorite shows, or how your phone’s voice assistant understands you? The answer stays in M achine L earning ( ML ) - a technology that’s quietly revolutionizing how we live, work, and connect. Let’s explore what machine learning is and how it works, with real-life examples that demonstrate its impact. What is Machine Learning ? Machine Learning is a way of coaching computer systems to study from data and enhance through the years with out being explicitly programmed. Instead of following rigid commands, these systems adapt with the aid of figuring out styles in statistics and making decisions primarily based on them. So, Let's see an Easier example which thought me how actually ML works, Imagine a PC displaying thousands of photos of cats and puppies. Over time, it learns the subtle variations - like the shape of the ears or the feel of the fur. Once trained, i...