Part I explains the core JavaScript language in detail. If you are new to JavaScript, it will teach you the language. If you are already a JavaScript programmer, Part I will sharpen your skills and deepen your understanding of the language.

Part II explains the scripting environment provided by web browsers, with a focus on DOM scripting with unobtrusive JavaScript. The broad and deep coverage of client-side JavaScript is illustrated with many sophisticated examples that demonstrate how to: Generate a table of contents for an HTML document Display DHTML animations Automate form validation Draw dynamic pie charts Make HTML elements draggable Define keyboard shortcuts for web applications Create Ajax-enabled tool tips Use XPath and XSLT on XML documents loaded with Ajax And much more

Part III is a complete reference for core JavaScript. It documents every class, object, constructor, method, function, property, and constant defined by JavaScript 1.5 and ECMAScript Version 3.

Part IV is a reference for client-side JavaScript, covering legacy web browser APIs, the standard Level 2 DOM API, and emerging standards such as the XMLHttpRequestobject and the canvas tag.

More than 300,000 JavaScript programmers around the world have made this their indispensable reference book for building JavaScript applications.

""A must-have reference for expert JavaScript programmers...well-organized and detailed."" -- Brendan Eich, creator of JavaScript

Amazon.com Review
Since the earliest days of Internet scripting, Web developers have considered JavaScript: The Definitive Guide an essential resource. David Flanagan's approach, which combines tutorials and examples with easy-to-use syntax guides and object references, suits the typical programmer's requirements nicely. The brand-new fourth edition of Flanagan's "Rhino Book" includes coverage of JavaScript 1.5, JScript 5.5, ECMAScript 3, and the Document Object Model (DOM) Level 2 standard from the World Wide Web Consortium (W3C). Interestingly, the author has shifted away from specifying--as he did in earlier editions--what browsers support each bit of the language. Rather than say Netscape 3.0 supports the Image object while Internet Explorer 3.0 does not, he specifies that JavaScript 1.1 and JScript 3.0 support Image. More usefully, he specifies the contents of independent standards like ECMAScript, which encourages scripters to write applications for these standards and browser vendors to support them. As Flanagan says, JavaScript and its related subjects are very complex in their pure forms. It's impossible to keep track of the differences among half a dozen vendors' generally similar implementations. Nonetheless, a lot of examples make reference to specific browsers' capabilities.

Though he does not cover server-side APIs, Flanagan has chosen to separate coverage of core JavaScript (all the keywords, general syntax, and utility objects like Array) from coverage of client-side JavaScript (which includes objects, like History and Event, that have to do with Web browsers and users' interactions with them. This approach makes this book useful to people using JavaScript for applications other than Web pages. By the way, the other classic JavaScript text--Danny Goodman's JavaScript Bible--isn't as current as this book, but it's still a fantastic (and perhaps somewhat more novice-friendly) guide to the JavaScript language and its capabilities. --David Wall

Topics covered: The JavaScript language (version 1.0 through version 1.5) and its relatives, JScript and ECMAScript, as well as the W3C DOM standards they're often used to manipulate. Tutorial sections show how to program in JavaScript, while reference sections summarize syntax and options while providing copious code examples.