Object or method detection is more reliable, as you're checking for the specific feature you're using. First you'll learn how to check if a specific object or method exists, then how to act accordingly. The Doc also shows how to get rid of those ugly JavaScript error messages with the window.onerror event handler. By Tomer Shiran. The best ways to find out what's new and to be found on the Web.
Webmasters just pull into the garage, type in their URL, and hit go.
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