What is a primary advantage of using functions in Karel programming?

Functions in Karel programming provide a primary advantage by enabling code reuse and better organization. This means that when you define a function, you can encapsulate a specific task or behavior that can be used multiple times throughout the program without repeating the same code. This not only reduces redundancy but also enhances readability and maintainability of the code, making it easier for programmers to understand and modify their work as needed.

By organizing code into functions, you can also break down complex problems into smaller, more manageable parts. Each function can focus on a specific task, which simplifies debugging and testing since you can evaluate each component individually. As a result, using functions promotes a more structured approach to programming, which is especially beneficial in larger projects where keeping track of many lines of code can become cumbersome.