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Kotlin with Copilot: Higher order add function

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Kotlin with Copilot: Higher Order Add Function

In Kotlin, higher-order functions allow you to pass functions as parameters, enabling flexible and reusable code patterns. This example demonstrates how to create a higher-order function that adds two integers using a function parameter to define the addition operation.

Code

fun higherOrderAdd(a: Int, b: Int, operation: (Int, Int) -> Int): Int {
  // Calls the passed-in function 'operation' with a and b
  return operation(a, b)
}

fun main() {
  // Define an addition lambda function
  val add: (Int, Int) -> Int = { x, y -> x + y }

  // Use the higher-order function with the add lambda
  val result = higherOrderAdd(5, 10, add)

  println("Result of higherOrderAdd: $result") // Output: Result of higherOrderAdd: 15
}

Key Points

  • Kotlin supports higher-order functions that take functions as parameters to increase flexibility.
  • The example defines a function 'higherOrderAdd' that accepts two integers and a binary operation function.
  • A lambda expression is used to specify the addition operation passed to the higher-order function.
  • This pattern allows you to customize behavior without changing the higher-order function itself.