JavaScript: The Definitive Guide

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JavaScript Reference

Navigator.userAgent Property


Navigator.userAgent Property---the HTTP user-agent value


Navigator 2.0, Internet Explorer 3.0




navigator.userAgent is a read-only string property that specifies the value the browser uses for the user-agent header in HTTP requests. In Navigator 2.0 and 3.0, this property is the value of navigator.appCodeName followed by a slash and the value of navigator.appVersion. For example:

Mozilla/2.01 (Win16; I)

In Internet Explorer 3.0, this property has the value "Mozilla/2.0 (compatible; MSIE 3.0A; Windows 95)". Once again, this is the value of appCodeName followed by a slash and the value of appVersion.

See Also

"Navigator", "Navigator.appCodeName", "Navigator.appName", "Navigator.appVersion"

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