Scala — Higher Order Function

In Scala, higher-order functions are functions that can take other functions as arguments, or return functions as results. These functions are a powerful feature of functional programming, allowing for code that is more concise and expressive.

Here’s an example of higher-order functions in Scala:

In the example above, we define a higher-order function operateOnNumbers that takes two numbers and a function as arguments. Depending on the provided function (e.g., add, subtract, multiply), it performs different operations on the numbers.

We also define a higher-order function createMultiplier that takes a factor as an argument and returns a function. This function can be used to create custom multiplier functions, such as double and triple, which double or triple the input, respectively.

Higher-order functions in Scala make it easy to work with functions as first-class citizens, allowing for flexible and reusable code.