Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Clean Code in JavaScript

You're reading from   Clean Code in JavaScript Develop reliable, maintainable, and robust JavaScript

Arrow left icon
Product type Paperback
Published in Jan 2020
Publisher Packt
ISBN-13 9781789957648
Length 548 pages
Edition 1st Edition
Languages
Concepts
Arrow right icon
Author (1):
Arrow left icon
James Padolsey James Padolsey
Author Profile Icon James Padolsey
James Padolsey
Arrow right icon
View More author details
Toc

Table of Contents (26) Chapters Close

Preface 1. Section 1: What is Clean Code Anyway?
2. Setting the Scene FREE CHAPTER 3. The Tenets of Clean Code 4. The Enemies of Clean Code 5. SOLID and Other Principles 6. Naming Things Is Hard 7. Section 2: JavaScript and Its Bits
8. Primitive and Built-In Types 9. Dynamic Typing 10. Operators 11. Parts of Syntax and Scope 12. Control Flow 13. Section 3: Crafting Abstractions
14. Design Patterns 15. Real-World Challenges 16. Section 4: Testing and Tooling
17. The Landscape of Testing 18. Writing Clean Tests 19. Tools for Cleaner Code 20. Section 5: Collaboration and Making Changes
21. Documenting Your Code 22. Other Peoples' Code 23. Communication and Advocacy 24. Case Study 25. Other Books You May Enjoy

Conversion, coercion, and casting

So far, we have learned how to tell the difference between various types and characteristics within JavaScript using detection. As we have seen, detection is useful when needing to provide alternative values or warnings in the case of unexpected or incompatible values. There is an additional mechanism for dealing with such values, however: we can convert them from the values we don't desire into the values we do desire.

In order to convert a value, we use a mechanism known as casting. Casting is the intentional and explicit derivation of one type from another type. In contrast to casting, there is also coercion. Coercion is the implicit and internal process of conversion employed by JavaScript when we use operators or language constructs that require specific types. An example of this would be when passing String values to a multiplication...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime