Book Image

Professional Scala

By : Mads Hartmann, Ruslan Shevchenko
Book Image

Professional Scala

By: Mads Hartmann, Ruslan Shevchenko

Overview of this book

This book teaches you how to build and contribute to Scala programs, recognizing common patterns and techniques used with the language. You’ll learn how to write concise, functional code with Scala. After an introduction to core concepts, syntax, and writing example applications with scalac, you’ll learn about the Scala Collections API and how the language handles type safety via static types out-of-the-box. You’ll then learn about advanced functional programming patterns, and how you can write your own Domain Specific Languages (DSLs). By the end of the book, you’ll be equipped with the skills you need to successfully build smart, efficient applications in Scala that can be compiled to the JVM.

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Table of Contents (12 chapters)
Professional Scala
Professional Scala
Contributors
Contributors
Preface
Preface
Free Chapter
1
Setting up the Development Environment
Setting up the Development Environment
Simple Program
Structure of a Scala Project
Base Syntax
Unit Testing
Summary
2
Basic Language Features
Basic Language Features
Objects, Classes, and Traits
OO in Our Chatbot
Function Calls
Summary
3
Functions
Functions
Functions
Exploring Pattern Matching
Partial Functions in Practice
Summary
4
Scala Collections
Scala Collections
Working with Lists
Abstracting on Sequences
Other Collections
Summary
5
Scala Type System
Scala Type System
Type Basics and Polymorphism
Variance
Advanced Types
Summary
6
Implicits
Implicits
Implicit Parameters and Implicit Conversions
Ad Hoc Polymorphism and Type Classes
Summary
7
Functional Idioms
Functional Idioms
Introduction to Functional Programming Concepts
Functional Design Patterns
Popular Libraries
Summary
8
Domain Specific Languages
Domain Specific Languages
DSLs and Types of DSLs
ScalaTest – A Popular DSL
Language Features for Writing DSLs
Writing a Small DSL
Beyond This Book
Summary
Index
Index

Contributors

About the Authors

Mads Hartmann is a software engineer with a fondness for automation and programming languages, especially statically typed functional ones. He holds a masters degree in computer science from the University of Copenhagen and he is currently working as a full-stack engineer at Family.

He is active in the Copenhagen developer scene and he has organized a meetup group for people interested in Scala and co-organized a meetup group for people generally interested in programming languages.

Ruslan Shevchenko is a system architect and a software developer who is focused on building reliable software systems. He specializes in programming languages and frameworks such as Scala, Java (J2SE, J2EE, Android), O/R Mapping, C++ , C, JavaScript, Perl, Tcl, and TermWare.

The domains he specializes in are telecommunications, OSS/billing systems, finance, code analysis, social integration, system utilities architecture domains, large-scale software systems, and distributed processing.

In terms of architecture, his specialist domains are large-scale software systems and distributed processing.

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