August 2006
Beginner to intermediate
272 pages
3h 28m
English
Content preview from JavaScript™ Phrasebook: Essential Code and CommandsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. Common Phrases
There are some recurring JavaScript tasks you need to perform almost daily. They build the foundation of many JavaScript applications and do not fit into any specific category. Therefore, this chapter starts with a collection of common problems—and solutions.
Detecting the Browser Type
Example .
window.alert(navigator.appName);
Although browsers’ implementations of JavaScript are quite compatible with each other nowadays (especially when compared with the situation during the browser war at the end of the 1990s), detecting the browser type is a vital part of the JavaScript developer’s toolbox.
The navigator JavaScript object provides browser information. Most useful, but also sometimes challenging to parse, is its userAgent ...
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