Kotlin quiz advanced level

Test description

This quiz evaluates the knowledge of Kotlin for advanced developers. It allows you to demonstrate theoretical skills and abilities in your understanding of complex Kotlin affinities, and analyze complex code.
Topics: interfaces, generics, type aliases, scope and lambda functions, coroutines, collections, advanced Kotlin idioms and syntax.

val x: Int? = (Int) y

val x: Int? = y as? Int

val x: Int = y by Int

val x: Int = y as Int