Greasemonkey Hacks: Tips & Tools for Remixing the Web with Firefox Review

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Greasemonkey Hacks: Tips & Tools for Remixing the Web with Firefox ReviewGreasemonkey (GM) is an extension (arguably one of the most useful) for the Firefox browser. GM is an agent that allows the dynamic alteration and manipulation of web pages via scripts which run after the page is loaded but before it is rendered to you. GM opens the Document Object Model (DOM) of other people's web pages up to client-side access, which gives you the power to add, remove and change the content of that web page to suit your tastes and needs - almost exactly if you had written the web page yourself. GM, however, is only the hosting engine. All the real work is performed by implementing JavaScript files, that you or someone else has written.
Greasemonkey Hacks is a great read and a valuable "ideas" asset, but only if you fit into the niche it is written for. As GM is nothing more than an interface host for dynamic scripting, not a lot other than an overview of the extension, where to get it, and a how to use its few dialogs can be written about. Indeed, it already has been covered before and is freely available on the extension's home page (Greasemonkey dot Mozdev dot Org). As GM makes the DOM available to custom JavaScripts, unless you only intend to look for and run other peoples scripts (which is quite doable as UserScripts dot Org makes hundreds of thousands of them readily available, some of which appear in this book), a working knowledge of the DOM and JavaScript is needed. The author does not spend much time covering what GM is, and very little time covering any JavaScripting or DOM objects; you are expected to already understand what you see. What this title does give you is hundreds of pages of ideas, accomplished by presenting recipe script after recipe script complete with discussions and explanations.
The book is well written, and entertaining to read. The information presented within ranges from novice to advanced (if you're into scripting) and is never dumbed down or made overly complicated. If you're really interested in writing your own web browsing "hacks", this is an excellent read as it provides a great guided introduction into the topic, beyond what you would get if you just threw yourself into the GM-related websites. If you find the possibilities tantalizing, you won't be sorry you purchased this book. But, as this is not a how-to or learning book for the DOM or for JavaScript, I couldn't recommend it above the GM websites to the casual Firefox user or those who do not script.Greasemonkey Hacks: Tips & Tools for Remixing the Web with Firefox Overview

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