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Open-Closed Principle – SOLID Architecture Concept Explained

The Open-Closed principle (OCP) is one the 5 SOLID design principles. It was popularized by the American scientist and instructor, Robert C. Martin (aka Uncle Bob) in a paper he published in 2000. The other 4 SOLID design principles are: * Single Responsibility Principle (SRP) * Liskov Substitution

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ValueError: math domain error [Solved Python Error]

In mathematics, there are certain operations that are considered to be mathematically undefined operations. Some examples of these undefined operations are: * The square root of a negative number (√-2). * A divisor with a value of zero (20/0). The "ValueError: math domain error" error

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What is a Remote Branch in Git? How to Check out Remote Branches from GitHub

Git is a free and open-source tool. Specifically, it is the most popular version control system used in software development today. Git allows you to keep track of and maintain different versions of a coding project. With Git, developers and technical teams can collaborate and work together on a project.

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How to Create a 3D Tilting Card Effect in React Native

Recently, I came across a tutorial about how to create a 3D tilting card effect (with mouse tracking functionality) on Kevin Powell's YouTube channel [https://www.youtube.com/@KevinPowell]. Kevin used HTML, CSS, and JavaScript to create the markup, style the card, and implement the mouse tracking functionality, respectively. In this tutorial, we'll take

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3 Cost-Cutting Habits That End up Costing Entrepreneurs More

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8 Hard Truths About Making Money Online That Everyone Should Understand

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The Dead-Simple Content Review System That You Can Steal

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How to Use Nested Functions in Google Sheets

Data analysis is an extremely valuable skill to have. But to make the most of your analysis, it's invaluable to get your data neat and orderly. In this article, I'll show you how to combine several functions together to better organize your data. gif of toys talking to each

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Do Your Customers Know How to Find Your Product?

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8 Tools Similar to ChatGPT for Entrepreneurs

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Introduction to Linux

If you're new to Linux, this course is for you. In this comprehensive course, you'll learn many of the tools used every day by both Linux SysAdmins and the millions of people running Linux distributions like Ubuntu on their PCs. This course will teach you how to navigate Linux's Graphical

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Introduction to Linux, Part 2

In this comprehensive course, you'll learn many of the tools used every day by both Linux SysAdmins and the millions of people running Linux distributions like Ubuntu on their PCs. This course will teach you how to navigate Linux's Graphical User Interfaces and powerful command line tool ecosystem. This is

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How to Implement Tokenization using JWT and Django Rest Framework

When I was a young girl, we used to have sports competitions like running a hundred meters, relays, swimming, and basketball games. My strengths were swimming and basketball. I went home with many gifts or, as my school's game master said, a token of appreciation. A token is a

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The Bad Website Club (and more free Bootcamps)

Over the past 24 months Ramón Huidobro [https://twitter.com/hola_soy_milk] and I have been running free programming bootcamps teaching web development and JavaScript skills. We've been stunned by the demand for these courses, which averaged 8,000 learners per cohort and let us reach 35,000 unique learners in total. We've also

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Sorry to Say But Most of You Can’t Make Money As Freelancers With The Usual Pattern

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My Exact Strategy For Selling My Online Courses

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How These Millennials Turned $100,000 Into a Millionaire Business With an Old Abandoned Building

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What is Virtual Inheritance?

C++ supports the concept of inheritance – that is, a class can inherit properties from other classes. But sometimes you might need to use what is commonly referred as virtual inheritance. In this article we will discuss when you might need to use virtual inheritance and how to

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Why Your Company Should Be Using Log Management Software

Logging, safeguarding, and utilizing data is a massive part of any software development operation. And chronological records of events have become an invaluable tool for determining future decisions. Today, we're fortunate enough to have the concept of system logs, which represents a collection of files. These files have data crucial

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How to Unhide a Row or Column in Excel – Or Unhide All Rows and Columns

If you’re working with a spreadsheet that contains sensitive or private data, then some rows and columns might be hidden. You might also need to hide unimportant information or data you don’t want others to see in your own spreadsheet. In these cases, you might need to unhide those hidden

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How to Convert a String to an Integer in C# – with Code Examples

There are various situations where you need to convert a string to a number. Whether you are working with user input or data from an external source, converting a string to a number is a common task for developers. This article will explore some of the most common methods to

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