JavaScript: The Definitive Guide: Activate Your Web Pages

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JavaScript: The Definitive Guide


JavaScript: The Definitive Guide

David Flanagan

Beijing • Cambridge • Farnham • Köln • Sebastopol • Tokyo

About the Author
David Flanagan is a programmer and writer with a website at http://davidflanagan
.com. His other O’Reilly books include JavaScript Pocket Reference, The Ruby Programming Language, and Java in a Nutshell. David has a degree in computer science
and engineering from the Massachusetts Institute of Technology. He lives with his wife
and children in the Pacific Northwest between the cities of Seattle, Washington, and
Vancouver, British Columbia.

The animal on the cover of JavaScript: The Definitive Guide, sixth edition, is a Javan
rhinoceros. All five species of rhinoceros are distinguished by their large size, thick
armor-like skin, three-toed feet, and single or double snout horn. The Javan rhinoceros,
along with the Sumatran rhinoceros, is one of two forest-dwelling species. The Javan
rhinoceros is similar in appearance to the Indian rhinoceros, but smaller and with certain distinguishing characteristics (primarily skin texture).
Rhinoceroses are often depicted standing up to their snouts in water or mud. In fact,
they can frequently be found just like that. When not resting in a river, rhinos will dig
deep pits in which to wallow. Both of these resting places provide a couple of advantages. First, they give the animal relief from the tropical heat and protection from bloodsucking flies. (The mud that the wallow leaves on the skin of the rhinoceros also provides some protection from flies.) Second, mud wallows and river water help support
the considerable weight of these huge animals, thereby relieving the strain on their legs
and backs.
Folklore has long held that the horn of the rhinoceros possesses magical and aphrodisiac powers, and that humans who gain possession of the horns will also gain those
powers. This is one of the reasons why rhinos are a prime target of poachers. All species
of rhinoceros are in danger, and the Javan rhino population is the most precarious.
Fewer than 100 of these animals are still living. At one time, Javan rhinos could be
found throughout southeastern Asia, but they are now believed to exist only in Indonesia and Vietnam.
The cover image is a 19th-century engraving from the Dover Pictorial Archive. The
cover font is Adobe ITC Garamond. The text font is Linotype Birka; the heading font
is Adobe Myriad Condensed; and the code font is LucasFo...
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