February 2008
Beginner
416 pages
9h 53m
English
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Chapter 4. Working with Variables and Data
This chapter discusses data types and variables in JavaScript. After reading this chapter, you'll be able to
Understand the six different data types used in JavaScript.
Use functions associated with the six data types.
Create variables.
Define objects and arrays.
Understand the scope of variables.
Debug JavaScript with Firebug.
Data Types in JavaScript
The data types of a language describe the basic elements that can be used within that language. You're likely already familiar with data types from other languages, such as strings or integers. Depending upon whom you ask, JavaScript defines anywhere from three to six data types. You'll work with all these data types regularly, some more than others.
The six data ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.