你将从本书学到什么?
这么说你准备从写HTML和CSS的静态网页跃进到编写动态网络应用程序脚本了?这里就是起点。《深入浅出JavaScript》带你游历令人兴奋的交互式网页创建过程。为了启发你的思考,本书覆盖了所有的JavaScript基本知识,从基本网络编程技巧,如变量、函数和循环语句,到**一些的专题,如表单验证、DOM操作、客户端对象、脚本程序调试——甚至Ajax!赶快做好准备,快速响应的网站离你只有几页书那么远。
使用JavaScript帮助人们与iRock交互
理解如何用模式匹配来验证表单数据
使用为你定制的调试终端来调试代码
解决需要兼顾面向对象和数据驱动的博客网站困境
使用DOM操作你的网页
并在一次网上历险中追踪你所作决策的历史
为什么这本书看起来如此不同?
我们认为你的时间如此宝贵以至于不应该花费在为新概念伤脑筋上面。《深入浅出JavaScript》用*新的认知科学和学习理论打造多感官的学习体验,它运用丰富的视觉样式激发你的大脑工作,而不是密密麻麻的文字让你看了昏昏欲睡。

Intro
Who is this book for?
We know what you're thinking
Metacognition
Bend your brain into submission
Read me
The technical review team
Acknowledgments
1 the interactive web: Reacting to the Virtual World
(Online) people have needs
Like talking to a brick wall...nothing happens
ButJavaScript talks back
Lights, camera, interaction!
Use the tag to tell the browser you're writingJavaScript
Your web browser can handle HTML, CSS, AND JavaScript
Man's virtual best Friend... needs YOUR help
Making iRock interactive
Create the iRock web page
Test drive
JavaScript events: giving the iRock a voice
Alerting the user with a function
Add the iRock greeting
Now let's make the iRock really interactive
Interaction is TWO-way communication
Add a thnction to get the user's name
Instant replay: what just happened?
Test drive iRock 1.0
2 storing data: Everything Has Its Place
Your scripts can store data
Scripts think in data types
Constants stay the SAME, variables can CHANGE
Variables start out without a value
Initialize a variable with "="
Constants are resistant to change
What's in a name?
Legal and illegal variable and constant names
Variable names often use CamelCase
Plan the Duncan's Donuts web page
A first take at the donut calculations
Initialize your data...or else
NaN is NOT a number
You can add more than numbers
parselnt0 and parseFloat0 convert text to a number
Why are extra donuts being ordered?
Duncan discovers donut espionage
Use getElementByld0 to grab form data
Validate the web form's data
Strive for intuitive user input
3 exploring the client: Browser Spelunking
Lucky contestant, come on down!
"if" this is true... then do something
An if statement evaluates a condition...and then takes action
Use if to choose between two things
You can make multiple decisions with if
Adding an else to your if statement
Variables drive the story
But part of the story is missing
Compounding yourJavaScript efforts
Tiered decision making with if/else
An if can go inside another if
Your functions control your pages
Pseudocode lets you map out your adventure
Stick figure inequality
!= Psst, I've got nothing to tell you...
Crafting decisions with comparison operators
Comments, placeholders, and documentation
Comments in.JavaScript start with//
Scope and context: Where data lives
Check your adventure variable score
Where does my data live?
Choice of five
Nesting it/else can get complicated
Swimh statements have multiple cases
Inside the switch statement
A switchy stick figure adventure: test drive
4 decision making: If There’s a Fork in the Road, Take It
X marks the spot
Deja vu all over again...for loops
Treasure hunting with a for loop
Dissect the tbr loop
Mandango: a macho movie seat finder
First check seat availability
Looping, HTML, and seat availability
Movie seats as variables
Arrays collect multiple pieces of data
Array values are stored with keys
FromJavaSeript to HTML
Visualizing Mandango seats
Test drive: the solo seat finder
Too much of a good thing: endless loops
Loops always need an exit condition (or two!)
A "break" in the action
Boolean operator logic uncovered
Looping for,just a "while"... until a condition is met
Breaking down the while loop
Use the right loop for the job
Movie seat data modeling
An array of an array: two-dimensional arrays
Two keys to access 2-D array data
Mandango in 2-D
An entire theater of manly seats
5 looping: At the Risk of Repeating Myself
The mother of all problems
Functions as problem solvers
The nuts and bolts of a function
A function you've already met
Building a better thermostat
Passing information to fhnctions
Function arguments as data
Functions eliminate duplicate code
Creating a seat setter function
The setSeat0 thnction
The significance of feedback
Returning data from tunctions
Many happy return values
Getting the status of a seat
Showing the seat status
You can link the thnction to an image
Repetitive code is never a good thing
Separating functionality from content
Functions are just data
Calling or referencing your functions
Events, callbacks, and HTML attributes
Wiring events using function references
Function literals to the rescue
Where's the wiring?
A shell of an HTML page
6 functions: Reduce, Reuse, Recycle
The Bannerocity HTML form
When HTML is not enough
Accessing form data
Form fields follow a chain of events
Losing focus with onblur
Alert box validation
Validate fields to make sure you have "not nothing"
Validation without aggravating alert boxes
A more subtle non-empty validator
Size matters...
Validating the length of data
Validating a ZIP code
Validating a date
Regular expressions aren't "regular"
Regular expressions define patterns to match
Metacharacters represent more than one literal character
Drilling into regular expressions: quantifiers
Validating data with regular expressions
Matching mins and maxes
Eliminating three-digit years with this...or that
Leave nothing to chance
Can you hear me now? Phone number validation
You'ye got mail: validating email
The exception is the rule
Matching optional characters fi'om a set
Constructing an email validator
7 forms and validation: Getting the User to Tell All
8 wrangling the page: Slicing and Dicing HTML with the DOM
9 bringing data to life: Objects as Frankendata
10 creating custom objects: Having It Your Way with Custom Objects
11 kill bugs dead: Good Scripts Gone Wrong 485
12 dynamic data: Touchy-Feely Web Applications

“非常实际而且有用,同时也解释得非常清楚。本书在向一个完全新手介绍JavaScript时做得非常出色,并且本书是Head First(深入浅出)系列教学风格的又一见证。与其他关于JavaScript的书相比,用《深入浅出JavaScript》来学习是很棒的,想想其他的参考书都有电话簿那么厚。”
——Alex Lee,学生,休斯敦大学(University of Houston)
“一个初级JavaScript开发人员的**选择。”
——Fletcher Moore,网络开发人员和设计者,乔治亚理工学院(Georgia Institute of Technology)
“经典‘深入浅出’系列里又一本伟大的书。”
——TW Scannell