KotlinNullability.kt

fun processNullableName(name: String?) {

    // Force unwrap !!
    println("Name is: ${name!!}")

    // Elvis operator ?:
    println("Name is: ${name ?: "Kotlin"}")

    // If statement
    if (name != null) {
        // Kotlin is smart enough to infer the type of name here as String 😎
        print("Name is: $name")
    }

    // Scope functions(let, also, etc.)
    name?.let { nonNullableName ->
        // Kotlin is smart enough to infer the type of name here as String 😎
        print("Name is: $nonNullableName")
    }

    // Chaining
    val kotlin: Language? = Language("Kotlin")

    print("Name is: ${kotlin?.name}")
}

data class Language(val name: String)