Copilot with Kotlin: Create a new divisible by 3 list

Copilot with Kotlin: Create a New Divisible by 3 List

In Kotlin, filtering a list to create a new one containing only elements divisible by 3 is straightforward and expressive. Using Kotlin's powerful collection functions, you can easily generate a filtered list with concise and readable code.

Code

fun main() {
  val numbers = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12)
  // Filter the list to include only numbers divisible by 3
  val divisibleByThree = numbers.filter { it % 3 == 0 }
  println(divisibleByThree)  // Output: [3, 6, 9, 12]
}

Key Points

• Kotlin's filter function creates a new list by selecting elements that satisfy a condition.
• The lambda expression { it % 3 == 0 } checks divisibility by 3 for each element.
• Original lists remain unchanged; filter returns a new list.
• This approach is concise, readable, and leverages Kotlin's functional programming features.