Navigator userAgent Property
Example
The user-agent header sent by your browser is:
var x = "User-agent header sent: " + navigator.userAgent;
The result of x will be:
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More "Try it Yourself" examples below.
Definition and Usage
The userAgent property returns the value of the user-agent header sent by the browser to the server.
The value returned, contains information about the name, version and platform of the browser.
Note: This property is read-only.
Browser Support
The numbers in the table specify the first browser version that fully supports the property.
| Property | |||||
|---|---|---|---|---|---|
| userAgent | Yes | Yes | Yes | Yes | Yes |
Syntax
navigator.userAgent
Technical Details
| Return Value: | A String, representing the user agent string for the current browser |
|---|
More Examples
Example
A demonstration of all navigator properties in one example:
var txt = "";
txt += "<p>Browser CodeName: " + navigator.appCodeName + "</p>";
txt +=
"<p>Browser Name: " + navigator.appName + "</p>";
txt += "<p>Browser
Version: " + navigator.appVersion + "</p>";
txt += "<p>Cookies Enabled: "
+ navigator.cookieEnabled + "</p>";
txt += "<p>Browser
Language: " + navigator.language + "</p>";
txt +=
"<p>Browser Online: " + navigator.onLine + "</p>";
txt += "<p>Platform: " +
navigator.platform + "</p>";
txt += "<p>User-agent header: " +
navigator.userAgent + "</p>";
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Navigator Object
