Skip to Main Content
JavaScript Absolute Beginner's Guide, 2nd Edition
book

JavaScript Absolute Beginner's Guide, 2nd Edition

by Kirupa Chinnathambi
December 2019
Beginner content levelBeginner
464 pages
10h 31m
English
Que
Content preview from JavaScript Absolute Beginner's Guide, 2nd Edition

2. Values and Variables

In This Chapter

  • Learn how to use values to store data

  • Organize your code with variables

  • Get a brief look at variable naming conventions

In JavaScript, every piece of data that we provide or use is considered to contain a value. In the example we saw from our introduction, the words hello, world! might just be some words that we pass in to the alert function:

alert("hello, world!");

To JavaScript, these words have a specific representation under the covers. They are considered values. We may not have thought much about that when we were typing those words in, but when we are in JavaScript-country, every piece of data you touch is considered a value.

Now, why is knowing this important? It is important because ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

JavaScript Absolute Beginner’s Guide

JavaScript Absolute Beginner’s Guide

Kirupa Chinnathambi

Publisher Resources

ISBN: 9780136204213