深入浅出JavaScript（影印版）

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