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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

This chapter was dedicated to practicing functional programming principles and learning the building blocks of functional programming in Kotlin.

Now you should know how to transform your data with map()/mapTo(), how to filter() collections, and find() elements by criteria.

You should also be familiar with how to drop() elements to skip them, how to sort() collections, and how to iterate over them using forEach() and onEach().

Use join() to stringify collections, fold() and reduce() to total collections up, and flatten() and flatTo() to reduce collection nesting.

slice() is a way to get only a portion of a collection, while chunked() is used to break a collection into even portions.

Finally, zip() and unzip() combine two collections into a pair, or split the pair back into two parts.

In the next chapter, we'll discuss how familiarity with those methods helps us to...

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