Preface

Object-oriented programming, also known as OOP, is a required skill in absolutely any modern software developer job. It makes a lot of sense because object-oriented programming allows you to maximize code reuse and minimize the maintenance costs. However, learning object-oriented programming is challenging because it includes too many abstract concepts that require real-life examples to make it easy to understand. In addition, object-oriented code that doesn't follow best practices can easily become a maintenance nightmare.

Nowadays, you need to work with more than one programming language at the same time to develop applications. For example, a modern Internet of Things project may require the Python code running on a board and a combination of C#, JavaScript, and HTML code to develop both the web and mobile apps that allow users to control the Internet of Things device. Thus, learning object-oriented programming for a single programming language is usually not enough.

This book allows you to develop high-quality reusable object-oriented code in Python, JavaScript, and C#. You will learn the object-oriented programming principles and how they are or will be used in each of the three covered programming languages. You will also learn how to capture objects from real-world elements and create object-oriented code that represents them. This book will help you understand the different approaches of Python, JavaScript, and C# toward object-oriented code. You will maximize code reuse in the three programming languages and reduce maintenance costs. Your code will become easy to understand and it will work with representations of real-life elements.