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Mastering JavaScript Functional Programming

You're reading from   Mastering JavaScript Functional Programming Write clean, robust, and maintainable web and server code using functional JavaScript

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Product type Paperback
Published in Jan 2020
Publisher Packt
ISBN-13 9781839213069
Length 470 pages
Edition 2nd Edition
Languages
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Author (1):
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Federico Kereki Federico Kereki
Author Profile Icon Federico Kereki
Federico Kereki
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Table of Contents (17) Chapters Close

Preface 1. Technical Requirements
2. Becoming Functional - Several Questions FREE CHAPTER 3. Thinking Functionally - A First Example 4. Starting Out with Functions - A Core Concept 5. Behaving Properly - Pure Functions 6. Programming Declaratively - A Better Style 7. Producing Functions - Higher-Order Functions 8. Transforming Functions - Currying and Partial Application 9. Connecting Functions - Pipelining and Composition 10. Designing Functions - Recursion 11. Ensuring Purity - Immutability 12. Implementing Design Patterns - The Functional Way 13. Building Better Containers - Functional Data Types 14. Bibliography
15. Answers to Questions 16. Other Books You May Enjoy

Wrapping functions – keeping behavior

In this section, we'll consider some higher-order functions that provide a wrapper around other functions to enhance them in some way but without altering their original objective. In terms of design patterns (which we'll be revisiting in Chapter 11, Implementing Design Patterns  The Functional Way), we can also speak of decorators. This pattern is based on the concept of adding some behavior to an object (in our case, a function) without affecting other objects. The term decorator is also popular because of its usage in frameworks such as Angular or (in an experimental mode) for general programming in JavaScript.

Decorators are being considered for general adoption in JavaScript, but are currently (December 2019) still at Stage 2, Draft level, and it may be a while until they get to Stage 3 (Candidate) and finally...
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