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How Inheritance Works in C# – with Code Examples

Inheritance is a branch of object-oriented programming that helps you write reusable code. It allows you to extend the content of a class to another class. Other pillars of object-oriented programming [/news/four-pillars-of-object-oriented-programming/] include encapsulation, polymorphism, and abstraction. In this article, we will learn about inheritance in C# and

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How to Reverse an Array in JavaScript – JS .reverse() Function

In this article, I'll show you two ways to reverse arrays in JavaScript. The reverse method of arrays reverses an array by making the last item the first, and making the first item the last. The other items in between also get reversed, respectively. Before showing you examples of the

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JS Check for Null – Null Checking in JavaScript Explained

Null is a primitive type in JavaScript. This means you are supposed to be able to check if a variable is null with the typeof() method. But unfortunately, this returns “object” because of an historical bug [https://bit.ly/3UcShOl] that cannot be fixed. let userName = null; console.log(typeof(userName)); // object So how

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How to Build a RESTful API with AdonisJS

As a developer, it's important to understand how APIs work. APIs have helped bridged the gap between the frontend and backend. They also let you separate parts of large codebases and take advantage of a microservices architecture. This separation of concerns makes learning and building RESTful APIs an in-demand skill

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How to Work with Strings in JavaScript – Tips for Efficient String Concatenation

Everything you see in browser – except images and videos – is a string. That's why you should learn how to work with them properly. This will dramatically increase the performance of your web applications, both on the frontend and backend. How Default String Concatenation Works – and Its

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5 Ways to Establish Credibility and Expertise and a Freelancer

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The Best Backend as a Service for your React App

If you're building an app on your own or on a budget, you may want to consider using a backend-as-a-service (BaaS). Doing so allows you to focus on the frontend of your application, but still have a full-stack app with a database, authentication, and more. In this guide, we

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How to Start Social Media Marketing as a Beginner in 2023

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Six Powerful Lessons I Learned After Building A Six-Figure Consulting Business in 6 Months

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Starting a Fiverr side hustle — One year later

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5 Businesses That Are Not Longer a Good Idea for 2023

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Here Is A Rundown of 5 Startup Tech Trends in 2023

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Use Django REST Framework to Create Web APIs

Django REST Framework is a powerful and flexible toolkit for building Web APIs. We just released a course on the freeCodeCamp.org YouTube channel that will teach you how to use Python and the Django REST Framework (DRF) to build a web API. Bobby Stearman developed this course. Bobby has created

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Learn MATLAB With This Crash Course

MATLAB is a programming language and software suite used for data analysis, scientific computing, and visualization that is widely used in academia and industry. We just published a MATLAB crash course on the freeCodeCamp.org YouTube channel that will teach you the fundamentals of MATLAB. Phillip Parisi developed this course.

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The Real Reason Nobody Is Subscribing to Your Newsletter

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How Search Works Under the Hood – Data Structures and Search Algorithms Explained

Searching is something is something many people do every day. Whether they're word searching in documents and databases, or pattern matching in bioinformatics to detect anomalies in DNA, the applications for search are pretty much endless. And these applications require a lot of computation. Imagine searching for a particular DNA

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React Testing Library Tutorial – How to Write Unit Tests for React Apps

In this tutorial, you will learn how to confidently write unit tests using the Testing Library [https://bit.ly/3VmUKqF]. It is a very popular React testing library for writing unit tests. So let's get started. What We'll Cover: 1. Why Do You Need to Write Unit Tests? 2. What

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How to Install a Wifi Adapter Driver on AML-S905X-CC (Le Potato)

If you're a developer, you might be familiar with Raspberry Pi. But you might not know about the Libre Computer AML-S905X-CC – also called Le Potato. There was a chip shortage during the pandemic that has resulted in increased Raspberry Pi prices. Other world events have also skyrocketed the

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I Feel like 95% of High Performers Have a Former Boss Who Ignored Their Obvious Potential

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Principle of Least Privilege – Definition and Meaning in Cybersecurity

Information technology has made a profound impact on our lives over the last three decades. It has helped us create global businesses, transform industries, and build powerful connections. But it has also led to increased risks in security and privacy. Individuals and businesses are vulnerable to cyber attacks now more

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