Eloquent JavaScript: A Modern Introduction to Programming

227 Pages·2011·6.88 MB·English

by  Marijn Haverbeke

Master the Language
Eloquent JavaScript
of the Web
E A Modern Introduction
JavaScript is at the heart of almost every ✒ Script the browser and make basic Web
l
modern Web application, whether it’s Google applications o
to Programming
Apps, Twitter, or the newest browser-based q
✒ Work with tools like regular expressions and
game. Though it’s simple for beginners to pick
u
XMLHttpRequest objects
up and play with, JavaScript is not a toy — it’s a
e
flexible and complex language that can be used And since programming is an art that’s best
n
to build full-scale applications. learned by doing, all example code is avail-
Marijn Haverbeke
t
able online in an interactive sandbox for you to
Eloquent JavaScript dives into this
experiment with. With Eloquent JavaScript J
flourishing language and teaches you to
as your guide, you can tweak, expand, and a
write code that’s beautiful and effective.
modify the author’s code, or throw it away and v
By immersing you in example code and
build your own creations from scratch. Before a
encouraging experimentation right from the
you know it, you’ll be fluent in the language of S
start, the author quickly gives you the tools
the Web.
you need to build your own programs. As you c
follow along with examples like an artificial life About the Author r
simulation and a version of the classic game i
p
Sokoban, you’ll learn to: Marijn Haverbeke is a programming language
t
enthusiast and polyglot. He’s worked his way
✒ Understand the essential elements of
from trivial BASIC games on the Commodore,
programming: syntax, control, and data
through a C++ phase, to the present where he
✒ Use object-oriented and functional mostly hacks on database systems and web
programming techniques to organize and APIs in dynamic languages. He created and
clarify your programs maintains several popular open-source projects. H
a
v
e
r
b
e
k
e
THE FINEST IN GEEK ENTERTAINMENT™
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$29.95 ($34.95 CDN) Shelve In: Programming Languages/JavaScript
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ELOQUENT JAVASCRIPT
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Eloquent JavaScript
A Modern Introduction
to Programming
Marijn Haverbeke
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ELOQUENTJAVASCRIPT.Copyright©2011byMarijnHaverbeke.
Allrightsreserved.Nopartofthisworkmaybereproducedortransmittedinanyformorbyanymeans,electronic
ormechanical,includingphotocopying,recording,orbyanyinformationstorageorretrievalsystem,withoutthe
priorwrittenpermissionofthecopyrightownerandthepublisher.
1514131211 123456789
ISBN-10:1-59327-282-0
ISBN-13:978-1-59327-282-1
Publisher:WilliamPollock
ProductionEditor:SerenaYang
CoverDesign:YourNeighbours
InteriorDesign:OctopodStudios
DevelopmentalEditor:KeithFancher
TechnicalReviewer:PatrickCorcoran
Copyeditor:KimWimpsett
Compositor:SerenaYang
Proofreader:NancySixsmith
Forinformationonbookdistributorsortranslations,pleasecontactNoStarchPress,Inc.directly:
NoStarchPress,Inc.
38RingoldStreet,SanFrancisco,CA94103
phone:[phone];fax:[phone];[email protected];www.nostarch.com
LibraryofCongressCataloging-in-PublicationData
Haverbeke, Marijn.
Eloquent JavaScript: a modern introduction to programming / by Marijn Haverbeke.
p. cm.
Includes index.
ISBN-13: 978-1-59327-282-1
ISBN-10: 1-59327-282-0
1. JavaScript (Computer program language) I. Title.
QA76.73.J39H38 2009
005.13’3-dc22
2010032246
NoStarchPressandtheNoStarchPresslogoareregisteredtrademarksofNoStarchPress,Inc.Otherproductand
companynamesmentionedhereinmaybethetrademarksoftheirrespectiveowners.Ratherthanuseatrademark
symbolwitheveryoccurrenceofatrademarkedname,weareusingthenamesonlyinaneditorialfashionandtothe
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Theinformationinthisbookisdistributedonan“AsIs”basis,withoutwarranty.Whileeveryprecautionhasbeen
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personorentitywithrespecttoanylossordamagecausedorallegedtobecauseddirectlyorindirectlybytheinfor-
mationcontainedinit.
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TolittleLotte.
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BRIEF CONTENTS
Introduction......................................................................... 1
Chapter1:BasicJavaScript: Values,Variables,andControlFlow ........................ 9
Chapter2:Functions................................................................. 29
Chapter3:DataStructures: ObjectsandArrays ........................................ 41
Chapter4:ErrorHandling............................................................ 63
Chapter5:FunctionalProgramming ................................................... 71
Chapter6:Object-OrientedProgramming.............................................. 93
Chapter7:Modularity ...............................................................129
Chapter8:RegularExpressions .......................................................139
Chapter9:WebProgramming: ACrashCourse........................................151
Chapter10:TheDocumentObjectModel..............................................163
Chapter11:BrowserEvents ..........................................................173
Chapter12:HTTPrequests ...........................................................189
Index...............................................................................197
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