Skip to Main Content
Head First JavaScript Programming
book

Head First JavaScript Programming

by Eric T. Freeman, Elisabeth Robson
March 2014
Beginner content levelBeginner
704 pages
18h 25m
English
O'Reilly Media, Inc.
Content preview from Head First JavaScript Programming

Chapter 3. Getting functional

Introducing Functions

image with no caption

Get ready for your first superpower. You’ve got some programming under your belt; now it’s time to really move things along with functions. Functions give you the power to write code that can be applied to all sorts of different circumstances, code that can be reused over and over, code that is much more manageable, code that can be abstracted away and given a simple name so you can forget all the complexity and get on with the important stuff. You’re going to find not only that functions are your gateway from scripter to programmer, they’re the key to the JavaScript programming style. In this chapter we’re going to start with the basics: the mechanics, the ins and outs of how functions really work, and then you’ll keep honing your function skills throughout the rest of the book. So, let’s get a good foundation started, now.

Note

More on this as we progress through the book.

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

Head First JavaScript Programming, 2nd Edition

Head First JavaScript Programming, 2nd Edition

Eric Freeman, Elisabeth Robson
JavaScript from Beginner to Professional

JavaScript from Beginner to Professional

Rob Percival, Laurence Svekis, Maaike van Putten, Codestars By Rob Percival

Publisher Resources

ISBN: 9781449340124Errata PageSupplemental Content