Uncategorized

In graph theory, detecting cycles in a directed graph is a common problem with applications in scheduling, dependency resolution, and compiler design. One efficient way to solve this is using Kahn’s Algorithm, which is based on topological sorting. Detecting Cycles in a Directed Graph using Kahn’s Algorithm (Topological Sort)  Idea We count how many nodes …

Detecting Cycles in a Directed Graph using Kahn’s Algorithm (Topological Sort) Read More »

BFS is a graph traversal method that explores all the neighbors of a node before going deeper. It’s ideal for finding the shortest path in an unweighted graph and is widely used in real-world applications like web crawling, routing, and level order traversal in trees. Breadth First Search (BFS) Traversal on Graph class Solution { …

Breadth First Search (BFS) Traversal in C++ Read More »

Do you also want to make something spin non stop on your website – like a logo , loading icon or an image or anything you want? I will show you this using few CSS lines – and then you can make any element rotate forever. We will do this using @keyframes and CSS animation. …

How to Make Infinite Rotation Using CSS (Beginner Friendly Guide) Read More »

Do you also want to give your images a black and white effect using just JavaScript? So i will show you how to do that using a simple <canvas> and some beginner-level JavaScript . No libraries , no fancy tools justpure basic thing. How to Convert an Image to Grayscale Using JavaScript.   We are …

How to Convert an Image to Grayscale Using JavaScript (Step-by-Step Guide) Read More »

If you are learning how to build websites and want to let users upload files like images , this guide is for you , Using Axios , a simple JavaScript library , you can send image files to server without reloading the page . In this tutorial we will build a very basic image upload …

How to Upload an Image Using Axios and AJAX in JavaScript (Beginner Friendly) Read More »

Axios is a HTTP client for the browser and Node.js . It helps you connect your frontend app with an external server or API easily. In this tutorial , we will learn how to install Axios , make GET and POST requests , and handle errors using basic examples . How to Use Axios JavaScript …

If u want to make HTTP requests in JavaScript without writing long and confusing codes – Axios is the perfect library for it. Its very simple and a beginner tool that lets you send and receive data from the APIs in just a few lines . In this article we will learn how to use Axios . Read More »