Search icon CANCEL
Subscription
0
Cart icon
Cart
Close icon
You have no products in your basket yet
Save more on your purchases!
Savings automatically calculated. No voucher code required
Arrow left icon
All Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Newsletters
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
JavaScript from Beginner to Professional

You're reading from  JavaScript from Beginner to Professional

Product type Book
Published in Dec 2021
Publisher Packt
ISBN-13 9781800562523
Pages 546 pages
Edition 1st Edition
Languages
Authors (3):
Laurence Lars Svekis Laurence Lars Svekis
Profile icon Laurence Lars Svekis
Maaike van Putten Maaike van Putten
Profile icon Maaike van Putten
Codestars By Rob Percival Codestars By Rob Percival
Profile icon Codestars By Rob Percival
View More author details
Toc

Table of Contents (19) Chapters close

Preface 1. Getting Started with JavaScript 2. JavaScript Essentials 3. JavaScript Multiple Values 4. Logic Statements 5. Loops 6. Functions 7. Classes 8. Built-In JavaScript Methods 9. The Document Object Model 10. Dynamic Element Manipulation Using the DOM 11. Interactive Content and Event Listeners 12. Intermediate JavaScript 13. Concurrency 14. HTML5, Canvas, and JavaScript 15. Next Steps 16. Other Books You May Enjoy
17. Index
Appendix – Practice Exercise, Project, and Self-Check Quiz Answers

Conditional ternary operators

We did not actually discuss this very important operator in our section on operators in Chapter 2, JavaScript Essentials. This is because it helps to understand the if else statement first. Remember that we had a unary operator that was called a unary operator because it only had one operand? This is why our ternary operator has its name; it has three operands. Here is its template:

operand1 ? operand2 : operand3;

operand1 is the expression that is to be evaluated. If the value of the expression is true, operand2 gets executed. If the value of the expression is false, operand3 gets executed. You can read the question mark as "then" and the colon as "else" here:

expression ? statement for true : statement associated with false;

The template for saying it in your head should be:

if *operand1*, then *operand2*, else *operand3*

Let's have a look at a few examples:

let access = age < 18 ? "denied...
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 AU $19.99/month. Cancel anytime}