In this post, we are going to see about Event Handling in JavaScript: From Clicks to Key Presses Event handling in JavaScript The first thing that we should notice here is that JavaScript is one of the most important languages for web developers, and this is borrowed from computers to the rest of the world. …
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In this post, we will see about Mastering Asynchronous JavaScript: Callbacks, Promises, and Async/Await. 1. Callbacks A callback is a function that is passed as an argument to another function, which is immediately executed when the first function has fully accomplished its task. Callbacks used to be the former method of dealing with asynchronous operations …
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INTRODUCTION “This Python script allows you to clean up a CSV file by removing all empty rows. You’ll provide the name of the input CSV file, and after processing, the script will save the cleaned data into a new CSV file. Additionally, you can choose to open the output file immediately after it is saved. …
INTRODUCTION This program allows users to resize an image by providing its file name, a new name for the resized image, and the desired dimensions. The user chooses between JPG or PNG formats and specifies the new width and height. The program then checks if the input image exists, resizes it to the specified dimensions, …
INTRODUCTION This program is a user-friendly PDF merger application built using Python’s tkinter library for the GUI and PyPDF2 for managing PDF files. It allows users to seamlessly select multiple PDF files, reorder them as needed, and merge them into a single document. The interface provides intuitive buttons for adding, removing, and reordering files, ensuring …
Hiding the cursor on specific parts of a webpage can create interesting interactions, whether for a game, a unique user interface, or just to surprise users in a specific area of your site. In this post, I’ll show you how to hide the cursor using simple JavaScript, inspired by a popular YouTube tutorial, and apply …
Now we’ll explore the Knapsack problem using a different approach: the Dynamic Programming (DP) method. Unlike the greedy approach, which sometimes provides suboptimal results, the DP approach guarantees an optimal solution to the problem. This problem is also known as the 0/1 Knapsack Problem. Knapsack Problem Overview: The goal of the knapsack problem is to …
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In this guide, we’ll explore how to convert a BLOB (Binary Large Object) into a byte array in Java using a different approach than the usual getBytes() method. We’ll focus on using the InputStream method to efficiently read the BLOB data from a database. What is a BLOB? A BLOB is a type of data …
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In this guide, we’ll walk through creating a simple Rock, Paper, Scissors game in Java. The game pits a user against the computer, and the winner is determined based on standard game rules. Let’s start by recalling the basic rules of Rock, Paper, Scissors: Rock crushes Scissors. Scissors cut Paper. Paper covers Rock. If both …
In this tutorial, we will explore how to get the screen size—both width and height—using Tkinter, Python’s standard GUI toolkit. Understanding the screen dimensions is essential for creating responsive applications that adapt to different display sizes. We’ll walk through a simple example that demonstrates how to obtain these values programmatically, making it easier to design …
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