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Mastering High Performance with Kotlin

You're reading from Mastering High Performance with Kotlin Overcome performance difficulties in Kotlin with a range of exciting techniques and solutions

Product type Paperback

Published in Jun 2018

Publisher Packt

ISBN-13 9781788996648

Length 316 pages

Edition 1st Edition

Languages

Kotlin

Concepts

High Performance Programming

Table of Contents (17) Chapters

Title Page

Copyright and Credits

Packt Upsell

Contributors

Preface

1. Identifying Performance Bottlenecks

2. Identifying Indicators of Performance Issues FREE CHAPTER

3. Learning How to Use Profiling Tools

4. Functional Approach

5. Enhancing the Performance of Collections

6. Optimizing Access to Properties

7. Preventing Unnecessary Overhead Using Delegates

8. Ranges and Identifying Performance Issues

9. Multithreading and Reactive Programming

10. Best Practices

1. Other Books You May Enjoy

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Index

Functional programming

Functional programming is a declarative programming paradigm that allows you to concentrate on the logic of a computation without describing its control flow. This is in contrast to imperative programming, which uses control statements to describe the flow of programs.

The following diagram represents a simplified classification of programming languages:

Functional programming assumes that the software is constructed based on the following principles:

Pure functions
First-class functions
Higher-order functions
Function composition
Typeclasses
Lambdas
Closures
Immutability

The following diagram shows a combination of these concepts:

We'll look at some examples of declarative and imperative styles to get a better understanding. We'll cover all the principles of functional programming just mentioned.

Declarative versus imperative

The best way to explain the difference between declarative and imperative programming styles is to show examples. Let's assume that you need to write a function...

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