kotlin-fundamentals

Idiomatic Kotlin minimizes boilerplate and runtime errors by applying type-safe patterns like nullable types, data classes, and sealed interfaces, ensuring robust software construction. This skill guides standardizing these practices across typical projects.

Null safety in Kotlin is handled using nullable types and safe calls to prevent runtime exceptions. The skill provides concrete examples and references for adopting these practices to standardize type-safe code creation.

Use sealed classes and data classes in Kotlin to represent constrained hierarchies and hold data, reducing boilerplate. The skill guides their application to build robust software with consistent coding styles.

Learning Kotlin coroutines and functional patterns involves understanding core collections and asynchronous programming. This skill covers these fundamentals with practical guidelines and references for rapid onboarding.

No specific version is strictly required, but the skill targets Kotlin 1.x to 2.x. Verify your Kotlin toolchain with `kotlin -version` and follow the provided references to apply extension functions effectively.

Refactor existing code to adopt Kotlin fundamentals by applying data classes, sealed interfaces, and safe calls. Load the refactored snippet into a Kotlin REPL or script and run it to verify type-safe improvements.