Skip to Main Content
Learn to Program, 2nd Edition
book

Learn to Program, 2nd Edition

by Chris Pine
March 2009
Intermediate to advanced content levelIntermediate to advanced
194 pages
4h
English
Pragmatic Bookshelf
Content preview from Learn to Program, 2nd Edition

Experiment: Duby

OK, local variables, neat trick…but maybe you’re wondering, “What’s the point?” Legitimate question, but it’s kind of hard to see the point without considering what it would be like without local variables. It’s like if you’d never seen a seatbelt, and I’m here telling you all about the different tension mechanisms, how it connects to the car, and the different kinds of latches, and you’re all, “And the point is…?” Well, imagine a world without seatbelts. You get in a wreck. You fly out the window. You die.

The negative consequences of programming without local variables are certainly not as dramatic, but neither are they as easily explained. To get a feel for life without locals, let’s imagine a fake language called Duby ...

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

Learn to Program, 3rd Edition

Learn to Program, 3rd Edition

Chris Pine
The Book of Ruby

The Book of Ruby

Huw Collingbourne

Publisher Resources

ISBN: 9781680500172Errata