Functions are present in many programming languages. Some of the languages have better support for purely functional styles, while others favor declarative styles. This is why, for example, using Scala over Java can give you tremendous leverage, because you can declare functions inside other functions, you can declare functions that accept other functions (higher-order functions) more easily, and you can declare anonymous lambda functions (functionality also available in Java, starting from Java 8). This greatly increases your capacity for abstraction, creating control structures, and thereby enabling your application to be expressed in a more DRY (Don't Repeat Yourself) way.
Mastering Functional Programming
Mastering Functional Programming
Overview of this book
Functional programming is a paradigm specifically designed to deal with the complexity of software development in large projects. It helps developers to keep track of the interdependencies in the code base and changes in its state in runtime. Mastering Functional Programming provides detailed coverage of how to apply the right abstractions to reduce code complexity, so that it is easy to read and understand.
Complete with explanations of essential concepts, practical examples, and self-assessment questions, the book begins by covering the basics such as what lambdas are and how to write declarative code with the help of functions. It then moves on to concepts such as pure functions and type classes, the problems they aim to solve, and how to use them in real-world scenarios. You’ll also explore some of the more advanced patterns in the world of functional programming such as monad transformers and Tagless Final. In the concluding chapters, you’ll be introduced to the actor model, which you can implement in modern functional languages, and delve into parallel programming.
By the end of the book, you will be able to apply the concepts of functional programming and object-oriented programming (OOP)in order to build robust applications.
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Current Title:
Mastering Functional Programming
Table of Contents (17 chapters)
Preface
Free Chapter
The Declarative Programming Style
Functions and Lambdas
Functional Data Structures
The Problem of Side Effects
Effect Types - Abstracting Away Side Effects
The Idea of the Type Classes
Basic Type Classes and Their Usage
Libraries for Pure Functional Programming
Patterns of Advanced Functional Programming
Introduction to the Actor Model
The Actor Model in Practice
Use Case - A Parallel Web Crawler
Introduction to Scala
Assessments
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