Variance... without Generics! скачать в хорошем качестве

Variance... without Generics!

Did you know that you can use covariance and contravariance in Kotlin without generics? Unlock the mental model of generic variance by first understanding how variance works with regular type hierarchies! ✨ New to Kotlin? Start here: https://typealias.com/start/ ... or pick up the new Leanpub Edition! https://book.typealias.com/ 🚀 I just launched a new email newsletter! Sign up here: https://newsletter.typealias.com/ 00:00 Introduction 00:35 Upholding the Contract in Subtypes 02:05 Covariance 04:12 Contravariance 06:54 Summary of Variance 07:15 Why Generic Variance Works 08:10 Wrap-up #kotlin #androiddevelopment