jQuery入门到精通指南 - CSDN文库

需积分: 9 166 浏览量更新于2024-07-29 收藏 5.87MB PDF 举报

"JQuery菜鸟到忍者，这是一本由Earle Castledine和Craig Sharkie编写的书籍，旨在帮助初学者深入理解并掌握JQuery库的使用。该书涵盖了从基础到高级的各种主题，包括选择、装饰、增强元素，动画效果，图像与幻灯片展示，菜单、标签、提示和面板的构建，Ajax交互，表单、控件和对话框的处理，列表、树形结构和表格的操作，以及插件、主题和高级话题的探讨。此外，书中还提供了参考材料、JavaScript小贴士和插件辅助等内容，帮助读者进一步提升JQuery技能。" 本书"JQuery菜鸟到忍者"是针对那些希望在网页开发中熟练运用JQuery的初学者设计的。标题中的"菜鸟到忍者"暗示了这本书将引导读者从基础入门，逐步成长为JQuery的高手。描述中提到的PDF文件名表明这是该书的电子版，可能包含了完整的章节内容和索引。在书中，第一部分" Falling in Love with jQuery"介绍了JQuery的基本概念和优势，让读者对这个强大的JavaScript库有一个初步的认识。第二部分"Selecting, Decorating, and Enhancing"详细讲解了如何使用JQuery选择器来选取DOM元素，并进行样式修改和功能增强。第三部分"Animating, Scrolling, and Resizing"涉及JQuery的动画效果，包括滚动和尺寸调整等动态效果的实现。第四部分"Images and Slideshows"则专注于图片和幻灯片展示的创建。第五部分至第八部分分别探讨了菜单、标签、工具提示、面板、Ajax交互、表单控件、对话框以及列表、树形结构和表格的处理方法。第九部分"Plugins, Themes, and Advanced Topics"深入到JQuery插件的开发、主题应用以及更高级的技术讨论。附录部分提供了参考材料，包括JavaScript的基础知识，以及编写JQuery插件的一些实用技巧。这些额外的内容有助于读者巩固基础，提升实践能力。 "JQuery菜鸟到忍者"是一本全面且深入的教程，适合想要系统学习和精通JQuery的开发者。通过阅读此书，读者不仅可以掌握JQuery的核心功能，还能了解如何利用JQuery提升网站的用户体验和交互性。

Licensed to JamesCarlson@aol.com

xvi

Flags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373

Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374

Callbacks and Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

$.support Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376

Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Event Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 379

Event Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

DIY Event Objects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 380

Appendix B JavaScript Tidbits . . . . . . . . . . . . . . . . . . . . . . 381

Type Coercion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 381

Equality Operators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382

Truthiness and Falsiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 383

Appendix C Plugin Helpers . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

Selector and Context . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 387

The jQuery Stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 388

Minification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 389

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 393

Licensed to JamesCarlson@aol.com

Licensed to JamesCarlson@aol.com

Preface

No matter what kind of ninja you are—a cooking ninja, a corporate lawyer ninja, or

an actual ninja ninja—virtuosity lies in first mastering the basic tools of the trade.

Once conquered, it’s then up to the full-fledged ninja to apply that knowledge in

creative and inventive ways.

In recent times, jQuery has proven itself to be a simple but powerful tool for taming

and transforming web pages, bending even the most stubborn and aging browsers

to our will. jQuery is a library with two principal purposes: manipulating elements

on a web page, and helping out with Ajax requests. Sure, there are quite a few

commands available to do this—but they’re all consistent and easy to learn. Once

you’ve chained together your first few actions, you’ll be addicted to the jQuery

building blocks, and your friends and family will wish you’d never discovered it!

On top of the core jQuery library is jQuery UI: a set of fine-looking controls and

widgets (such as accordions, tabs, and dialogs), combined with a collection of full-

featured behaviors for implementing controls of your own. jQuery UI lets you quickly

throw together awesome interfaces with little effort, and serves as a great example

of what you can achieve with a little jQuery know-how.

At its core, jQuery is a tool to help us improve the usability of our sites and create

a better user experience. Usability refers to the study of the principles behind an

object’s perceived efficiency or elegance. Far from being merely flashy, trendy design,

jQuery lets us speedily and enjoyably sculpt our pages in ways both subtle and ex-

treme: from finessing a simple sliding panel to implementing a brand-new user in-

teraction you invented in your sleep.

Becoming a ninja isn’t about learning an API inside out and back to front—that’s

just called having a good memory. The real skill and value comes when you can

apply your knowledge to making something exceptional: something that builds on

the combined insights of the past to be even slightly better than anything anyone

has done before. This is certainly not easy—but thanks to jQuery, it’s fun just trying.

Licensed to JamesCarlson@aol.com

Licensed to JamesCarlson@aol.com

xviii

Who Should Read This Book

If you’re a front-end web designer looking to add a dash of cool interactivity to your

sites, and you’ve heard all the buzz about jQuery and want to find out what the fuss

is about, this book will put you on the right track. If you’ve dabbled with JavaScript,

but been frustrated by the complexity of many seemingly simple tasks, we’ll show

you how jQuery can help you. Even if you’re familiar with the basics of jQuery, but

you want to take your skills to the next level, you’ll find a wealth of good coding

advice and in-depth knowledge.

You should already have intermediate to advanced HTML and CSS skills, as jQuery

uses CSS-style selectors to zero in on page elements. Some rudimentary programming

knowledge will be helpful to have, as jQuery—despite its clever abstractions—is

still based on JavaScript. That said, we’ve tried to explain any JavaScript concepts

as we use them, so with a little willingness to learn you’ll do fine.

What’s in This Book

By the end of this book, you’ll be able to take your static HTML and CSS web pages

and bring them to life with a bit of jQuery magic. You’ll learn how to select elements

on the page, move them around, remove them entirely, add new ones with Ajax,

animate them … in short, you’ll be able to bend HTML and CSS to your will! We

also cover the powerful functionality of the jQuery UI library.

This book comprises the following nine chapters. Read them in order from beginning

to end to gain a complete understanding of the subject, or skip around if you only

need a refresher on a particular topic.

Chapter 1: Falling in Love with jQuery

Before we dive into learning all the ins and outs of jQuery, we’ll have a quick

look at why you’d want to use it in the first place: why it’s better than writing

your own JavaScript, and why it’s better than the other JavaScript libraries out

there. We’ll brush up on some CSS concepts that are key to understanding

jQuery, and briefly touch on the basic syntax required to call jQuery into action.

Chapter 2: Selecting, Decorating, and Enhancing

Ostensibly, jQuery’s most significant advantage over plain JavaScript is the ease

with which it lets you select elements on the page to play with. We’ll start off

Licensed to JamesCarlson@aol.com

Licensed to JamesCarlson@aol.com

xix

this chapter by teaching you how to use jQuery’s selectors to zero in on your

target elements, and then we’ll look at how you can use jQuery to alter those

elements’ CSS properties.

Chapter 3: Animating, Scrolling, and Resizing

jQuery excels at animation: whether you’d like to gently slide open a menu, or

send a dialog whizzing across the screen, jQuery can help you out. In this

chapter, we’ll explore jQuery’s wide range of animation helpers, and put them

into practice by enhancing a few simple user interface components. We’ll also

have a quick look at some animation-like helpers for scrolling the page and

making elements resizable.

Chapter 4: Images, Slideshows, and Cross-fading

With the basics well and truly under our belts, we’ll turn to building some of

the most common jQuery widgets out there: image galleries and slideshows.

We’ll learn how to build lightbox displays, scrolling thumbnail galleries, cross-

fading galleries, and even take a stab at an iPhoto-style flip-book.

Chapter 5: Menus, Tabs, Tooltips, and Panels

Now that we’re comfortable with building cool UI widgets with jQuery, we’ll

dive into some slightly more sophisticated controls: drop-down and accordion-

style menus, tabbed interfaces, tooltips, and various types of content panels.

We’re really on a roll now: our sites are looking less and less like the brochure-

style pages of the nineties, and more and more like the Rich Internet Applications

of the twenty-first century!

Chapter 6: Construction, Ajax, and Interactivity

This is the one you’ve all been waiting for: Ajax! In order to make truly desktop-

style applications on the Web, you need to be able to pass data back and forth

to and from the server, without any of those pesky refreshes clearing your inter-

face from the screen—and that’s what Ajax is all about. jQuery includes a raft

of convenient methods for handling Ajax requests in a simple, cross-browser

manner, letting you leave work with a smile on your face. But before we get too

carried away—our code is growing more complex, so we’d better take a look at

some best practices for organizing it. All this and more, in Chapter 6.

Licensed to JamesCarlson@aol.com

Licensed to JamesCarlson@aol.com

xx

Chapter 7: Forms, Controls, and Dialogs

The bane of every designer, forms are nonetheless a pivotal cornerstone of any

web application. In this chapter, we’ll learn what jQuery has to offer us in terms

of simplifying our form-related scripting. We’ll learn how to validate forms on

the fly, offer assistance to our users, and manipulate checkboxes, radio buttons,

and select lists with ease. Then we’ll have a look at some less conventional

ways of allowing a site’s users to interact with it: a variety of advanced controls

like date pickers, sliders, and drag and drop. We’ll round it off with a look at

modal dialogs in the post-popup world, as well as a few original nonmodal

notification styles. What a chapter!

Chapter 8: Lists, Trees, and Tables

No matter how “Web 2.0” your application may be, chances are you’ll still need

to fall back on the everyday list, the humdrum tree, or even the oft-derided table

to present information to your users. This chapter shows how jQuery can make

even the boring stuff fun, as we’ll learn how to turn lists into dynamic, sortable

data, and transform tables into data grids with sophisticated functionality.

Chapter 9: Plugins, Themes, and Advanced Topics

jQuery is more than just cool DOM manipulation, easy Ajax requests, and funky

UI components. It has a wealth of functionality aimed at the more ninja-level

developer: a fantastic plugin architecture, a highly extensible and flexible core,

customizable events, and a whole lot more. In this chapter, we’ll also cover the

jQuery UI theme system, which lets you easily tailor the appearance of jQuery

UI widgets to suit your site, and even make your own plugins skinnable with

themes.

Where to Find Help

jQuery is under active development, so chances are good that, by the time you read

this, some minor detail or other of these technologies will have changed from what’s

described in this book. Thankfully, SitePoint has a thriving community of JavaScript

and jQuery developers ready and waiting to help you out if you run into trouble.

We also maintain a list of known errata for this book, which you can consult for the

latest updates; the details are below.

Licensed to JamesCarlson@aol.com

剩余430页未读，继续阅读

cremona

粉丝: 2
资源: 11

最新资源