Higher-Order Functions in Scala: Explanation and Usage

In Scala, higher-order functions are functions that can take other functions as parameters or return functions as results. This functional programming concept allows for more concise and expressive code.

Higher-order functions are commonly used in Scala to achieve code reusability, modularity, and flexibility. They can be used for various tasks such as mapping, filtering, reducing, and more.

To use higher-order functions in Scala, you can define functions that take other functions as arguments, use anonymous functions or lambda expressions, and leverage built-in higher-order functions such as map, filter, and reduce.

Overall, higher-order functions in Scala offer a powerful way to manipulate functions as first-class citizens, leading to more elegant and maintainable code.