Computer scienceProgramming languagesScalaControl flowFunctions

High-order functions

HOF compilation checks

Report a typo

We have a user class with the ability to regenerate the identifier:

case class User(id: Long, nick: String) {
  def regenerateUserId(regenerate: Long => Long): User = {
    val newId = regenerate(this.id)
    this.copy(id = newId)
  }
}

We wrote a function for regeneration:

def idToNewFormat(id: Int): Int =
  id + 10000

What happens if we pass it as an argument to the regenerateUserId method?

Select one option from the list

The code will not compile because we cannot pass a function to a method

The code will not compile because of type mismatch

The user id will regenerate by adding 10000 to the value

___

Create a free account to access the full topic