The `copy` function only copies the constructor pa...

# announcements

[marstran]

The copy function only copies the constructor parameters. You should do this:

data class Person(val name: String = "Tristan", val age: Int = 1)

fun main(args: Array<String>) {
    val person = Person()
    val personCloned = person.copy(age = 3)
    println(personCloned.age)
}

[Tristan Caron]

okay thx

[Andreas Sinz]

@Tristan Caron keep in mind that `equals`/`hashCode`/`copy`/etc. only take properties into account, that have been defined in the primary constructor