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Hands-On Design Patterns with Kotlin

You're reading from   Hands-On Design Patterns with Kotlin Build scalable applications using traditional, reactive, and concurrent design patterns in Kotlin

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Product type Paperback
Published in Jun 2018
Publisher Packt
ISBN-13 9781788998017
Length 310 pages
Edition 1st Edition
Languages
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Author (1):
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Alexey Soshin Alexey Soshin
Author Profile Icon Alexey Soshin
Alexey Soshin
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Table of Contents (13) Chapters Close

Preface 1. Getting Started with Kotlin FREE CHAPTER 2. Working with Creational Patterns 3. Understanding Structural Patterns 4. Getting Familiar with Behavioral Patterns 5. Functional Programming 6. Streaming Your Data 7. Staying Reactive 8. Threads and Coroutines 9. Designed for Concurrency 10. Idioms and Anti-Patterns 11. Reactive Microservices with Kotlin 12. Other Books You May Enjoy

Summary

That was a long chapter. But we've also learned a lot. We finished covering all classical design patterns, including eleven behavioral ones. In Kotlin, functions can be passed to other functions, returned from functions, and assigned to variables. That's what the "functions as first-class citizens" concept is all about. If your class is all about behavior, it often makes sense to replace it with a function. Iterator is yet another operator in the language. Sealed classes help in making when statements exhaustive. The run extension function allows for controlling what will be returned from it. A lambda with a receiver allows more clear syntax in your DSLs. Another keyword, lateinit, tells the compiler to relax a bit in its null safety checks. Use with care! And finally, we covered how to reference an existing method with ::.

In the next chapter, we&apos...

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