• Kotlin Docs | Kotlin
  • API reference
    • Standard library (stdlib)
• YouTube / JetBrains
  • playlist
    • KotlinConf 2017
    • KotlinConf 2018 - All Sessions
    • Kotlin Meetup Seoul 2019
    • Kotlin
    • Kotlin hands-on
    • Kotlin/Everywhere 'Namma' Bengaluru - June 22, 2019
    • KotlinConf 2019
    • Kotlin 1.4 Online Event
    • Server-side with Kotlin Webinar Series
    • TeamCity Kotlin DSL tutorials

Books

• Simplifying Application Development with Kotlin Multiplatform Mobile. Write robust native applications for iOS and Android efficiently by Róbert Nagy - 184 pages
• Reactive Programming with Kotlin by Alex Sullivan - 446 pages

Test

• Kotest is a flexible and elegant multi-platform test framework for Kotlin with extensive assertions and integrated property testing
  • Property-based Testing
    • with property testing, hundreds or thousands of values are fed into the same test, and the values are (usually) randomly generated by your property test framework