web 2.0 blog

JavaScript is a powerful scripting language that can be embedded directly in HTML; it allows you to create dynamic, interactive Web-based applications that run completely within a Web browser.JavaScript: The Definitive Guide provides a thorough description of the core JavaScript language and its client-side framework, complete with sophisticated examples that show you how to handle common tasks. The book also contains a definitive, in-depth reference section that covers every core and client-side JavaScript function, object, method, property, constructor, and event handler. This third edition of JavaScript: The Definitive Guide describes the latest version of the language, JavaScript 1.2, as supported by Netscape Navigator 4 and Internet Explorer 4. The book also covers JavaScript 1.1, which is the first industry-standard version known as ECMAScript.
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.

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