Kotlin Guide

Applies to: Kotlin 1.9+, JVM 17+, Coroutines, Android, Server-side

Core Principles

1. Null Safety: Leverage the type system to eliminate null pointer exceptions at compile time
2. Conciseness: Use data classes, scope functions, and destructuring to reduce boilerplate
3. Coroutines for Concurrency: Structured concurrency with coroutines, not raw threads
4. Immutability by Default: Prefer val over var, immutable collections over mutable
5. Interop Awareness: Write Kotlin-idiomatic code while maintaining clean Java interop boundaries

Guardrails

Version & Dependencies