Functional Programming in JavaScript

JavaScript libraries used in this book

Functional JavaScript libraries

Because JavaScript isn’t a pure functional language, you have to rely on the help of third-party libraries that you can load into your project to emulate features, such as currying, composition, memoization, lazy evaluation, immutability, and so on, that are core in purer functional languages like Haskell. The libraries eliminate the need for you to implement the features yourself, so that you can focus on writing your business logic functions and delegate the orchestration of this code to these libraries. This section lists the functional libraries used throughout this book. These libraries are designed to do the following:

• Fill in any gaps of standard JavaScript environments ...