AtomicKotlinCourse/Power Tools/Property Delegation Tools/Exercise 2/task.md

Property Delegation Tools (#2)

Create a generic function observe() that uses trace() to capture "$propertyName $oldValue to $newValue" whenever a property changes. Ensure that it works with:

class Product(nm: String = "<0>", id: Int = -1) {
  var name by observable(nm, ::observe)
  var ident by observable(id, ::observe)
  override fun toString() = "$name $ident"
}

And that the starter code in main() successfully executes.

_{This task doesn't contain automatic tests, so it's always marked as "Correct" when you run "Check". Please compare your solution with the one provided!}