Classes and Data Classes

Every screen of the native BookNest rests on a few small types: a catalog Book, a CartLine, the state a Compose 234 screen draws from. In the React Native 36,878 version (React Native) they were plain objects checked by TypeScript interfaces; in Kotlin they are classes, mostly data classes. Each Kotlin example runs with the kotlinc 2.4.20 compiler from Kotlin Playground. Object declarations and companion objects follow in Companions and Generics.

Subsections

• Constructors and Properties
• Inheritance and Interfaces
• Data Classes
• copy() and Destructuring
• Visibility
• Kotlin vs TS Classes