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Learning Functional Programming in Go

Learning Functional Programming in Go

By : Sheehan
4.1 (8)
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Learning Functional Programming in Go

Learning Functional Programming in Go

4.1 (8)
By: Sheehan

Overview of this book

Lex Sheehan begins slowly, using easy-to-understand illustrations and working Go code to teach core functional programming (FP) principles such as referential transparency, laziness, recursion, currying, and chaining continuations. This book is a tutorial for programmers looking to learn FP and apply it to write better code. Lex guides readers from basic techniques to advanced topics in a logical, concise, and clear progression. The book is divided into four modules. The first module explains the functional style of programming: pure functional programming, manipulating collections, and using higher-order functions. In the second module, you will learn design patterns that you can use to build FP-style applications. In the next module, you will learn FP techniques that you can use to improve your API signatures, increase performance, and build better cloud-native applications. The last module covers Category Theory, Functors, Monoids, Monads, Type classes and Generics. By the end of the book, you will be adept at building applications the FP way.
Table of Contents (13 chapters)
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Manipulating Collections

Handling lists of items is a common occurrence in life as well as in programming languages. When a list has associated functions that help us manipulate the items in the list, we often call that object a collection.

In this chapter, we will see how high-order functions can be used to greatly simplify the task of manipulating collections. We'll see how we can code using functional programming techniques and open source functional packages to create elegant solutions that are not only insightful, but also performant in today's distributed processing environments.

Our goal in this chapter is to:

  • Iterate through a collection
  • Learn about intermediate and terminal functors
  • Use predicates to filter items in a collection
  • Test using a Mocha-like BDD library
  • Focus on Map functions
  • Grasp the breadth of the collection-manipulating functions in...
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