ToDo App

In this tutorial, we will build a simple ToDo app that can add new tasks, mark them as completed, and filter them based on their completion status. We will start by exploring the basics of structured programming in JavaScript, which involves using simple control structures such as loops and conditional statements to organize code. This approach can be useful for solving small to medium-sized problems that don't require complex data structures or algorithms.

Next, we will dive into functional programming, which is a paradigm that emphasizes writing code in a declarative style, where functions are treated as first-class citizens. We will learn how to use higher-order functions, closures, and other functional programming concepts to create more modular and reusable code. This approach can be particularly useful for dealing with complex data transformations and asynchronous operations.

Finally, we will explore object-oriented programming, which is a paradigm that involves organizing code around objects that encapsulate data and behavior. We will learn how to use classes and other object-oriented programming concepts to create more scalable and maintainable code. This approach can be particularly useful for building large-scale applications that require complex interactions between different parts of the system.

By the end of this chapter, you will have a better understanding of these three programming paradigms and how to use them effectively in your own code. You will also have a working ToDo app that demonstrates the key concepts and techniques covered in this tutorial.

You can download the complete application here. In addition, a deployed version is here.