In this lesson, you'll explore the benefits of writing small functions in JavaScript and how they contribute to clean, maintainable code. Small functions are a cornerstone of good software design, promoting readability, reusability, and ease of testing. Let's dive into why small functions matter and how to effectively implement them in your code. ## Small Functions ### Do One Thing (DOT) Principle The Do One Thing principle, often referred to as Curly’s Law, suggests that functions should perform a single task. This approach ensures that each function is focused and easy to understand. A function should either perform an action or return a result, but not both.