Kotlin with Copilot: Create a lambda function to square a number

Kotlin with Copilot: Create a lambda function to square a number

In Kotlin, lambda functions provide a concise way to define small functions inline. This example demonstrates how to create a simple lambda that takes an integer and returns its square, showcasing Kotlin’s expressive syntax for functional programming.

Code

fun main() {
  // Define a lambda function that squares an integer
  val square: (Int) -> Int = { number -> number * number }

  // Use the lambda function with some sample inputs
  println(square(5))  // Output: 25
  println(square(10)) // Output: 100
}

Key Points

• Kotlin lambda syntax uses curly braces with input parameters followed by an arrow and the expression.
• Lambda functions can be assigned to variables with explicit types for clarity and reusability.
• Calling a lambda is done like a regular function using parentheses and passing arguments.
• Lambdas enable concise, inline function definitions without needing full function declarations.