Author: Rahul

Python, like other programming languages, employs Boolean logic, which is one of the foundations of computer science. This logic allows us to make decisions based on conditions. In Python, these are made possible by Boolean operators. This article will delve deep into the world of Python’s Boolean operators. Introduction to Boolean Logic In computer science, Boolean logic, named after mathematician and logician George Boole, is a subfield of algebra used for creating true/false statements. This logic is particularly useful when it comes to control flow in programming. In Python, Boolean logic is represented by two constant objects: `True` and `False`.…

Bash completion is a useful functionality that allows you to auto-complete commands, filenames, and arguments within a bash shell. This saves time, increases efficiency, and enhances the user experience when working in a terminal environment. The latest version of macOS uses Zsh as its default shell, having switched from Bash with the Catalina release in 2019. However, if you still prefer to use Bash and wish to enable bash completion, here’s a comprehensive guide to help you. Step 1: Install Homebrew Homebrew is a popular package manager for macOS that simplifies the installation of software on Apple’s macOS operating system…

VLC Media Player, developed by VideoLAN, is a versatile open-source multimedia player that supports a vast array of audio and video formats. Beyond its capability as a player, it comes packed with additional functionalities, including the ability to capture clips from videos – a feature that is surprisingly underused. This article will take you through a comprehensive, step-by-step guide on how to utilize VLC Media Player’s video clipping feature. Whether you’re a video editor, a content creator, or someone simply looking to create highlight reels from your favorite shows, this guide will help you master the art of video clipping.…

The “for loop” is one of the most fundamental and widely used control flow structures in JavaScript. It allows you to repeat a block of code a specific number of times, which can be incredibly useful for things like processing arrays or other data collections, or for running a particular operation over and over until a certain condition is met. In this article, we’re going to delve into understanding how the JavaScript “for loop” works, what its components are, and how you can use it in your code. Basic Syntax First, let’s take a look at the basic syntax of…

JSON, short for JavaScript Object Notation, is a popular data format used extensively in data interchange. It is compact, easy to read, and easy to parse, making it a common choice for data storage and transmission over networks. While Python’s built-in `json` module provides the basic functionality for handling JSON data, JSON strings can often become unreadable when they become too long or too nested. This is where pretty-printing comes in, as it formats the JSON data in a way that is easy for humans to read and understand. In this article, we’ll delve into how you can pretty-print a…

In Ubuntu, like in other Linux versions, the swap file is a key part of managing the computer’s memory. It uses hard drive space as extra RAM when the actual RAM is full. Although it’s useful, sometimes you might want to turn it off or remove it. For example, if your computer has a lot of RAM or you need to save space on your disk. This article will show you how to turn off or get rid of a swap file on Ubuntu, step by step. Before you start, make sure you know what might happen if you disable…

GitHub Actions is an automation feature built into GitHub’s platform. It allows you to automate workflows, including software builds, testing, and deployments, right in your repository. As developers, having this functionality at your disposal can streamline your workflow and boost productivity. This article will guide you through the process of getting started with GitHub Actions. What are GitHub Actions? Before we dive into how to set them up, let’s clarify what GitHub Actions are. Essentially, they are tasks that you can automate directly within your GitHub repository. You can create individual tasks, known as “actions”, and combine them to create…

Caching is a key way to make your web server work faster. It helps by saving data that gets asked for a lot, so it doesn’t have to be loaded fresh every time. This speeds up your website and lessens the strain on your server. This article will show you how to set up caching on the Apache HTTP Server. First, let’s learn a bit about Apache and how it handles caching. Understanding Apache Caching Apache HTTP Server, usually just called Apache, is one of the most common web servers around. It’s known for being strong, flexible, and compatible with…

In this tutorial, we will learn how to create code blocks with a copy code button using Prism.js. Prism.js is a lightweight and extensible syntax highlighter, which allows us to beautifully format code snippets on our web pages. The addition of a copy code button will enhance the user experience by enabling users to easily copy the code to their clipboard with just a single click. Step 1: Set Up the HTML Structure Start by creating a new HTML file and setting up the basic structure. We’ll include the necessary stylesheets and scripts to make use of Prism.js and the…

In Java, reading data from an InputStream and converting it into a String can be a common requirement when dealing with various input sources such as files, network sockets, or web APIs. In this article, we will explore different approaches to accomplish this task along with code examples. Method 1: Using BufferedReader and StringBuilder One of the most straightforward ways to read an InputStream into a String is by utilizing the BufferedReader and StringBuilder classes. The BufferedReader provides efficient reading of characters from an InputStream, while the StringBuilder is used to efficiently build the resulting String. Here’s an example that…