JavaScript Window Navigator

The Navigator Object

The navigator object contains information about the visitor's browser.

It can be written with or without the window prefix like:

windows.navigator or just navigator

Browser Cookies

The cookieEnabled property returns true if cookies are enabled, otherwise false:

Example

document.getElementById("demo").innerHTML =
"cookiesEnabled is " + navigator.cookieEnabled;

The Browser Language

The language property returns the browser's language:

Example

document.getElementById("demo").innerHTML = navigator.language;

Is The Browser Online?

The onLine property returns true if the browser is online:

Example

document.getElementById("demo").innerHTML = navigator.onLine;

Browser Application Name

The appName property returns the application name of the browser:

Example

document.getElementById("demo").innerHTML =
"navigator.appName is " + navigator.appName;

Browser Application Code Name

The appCodeName property returns the application code name of the browser:

Example

document.getElementById("demo").innerHTML =

 "navigator.appCodeName is " + navigator.appCodeName;

The Browser Engine

The product property returns the product name of the browser engine:

Example

document.getElementById("demo").innerHTML =

 "navigator.product is " + navigator.product;

The Browser Version

The appVersion property returns version information about the browser:

Example

document.getElementById("demo").innerHTML = navigator.appVersion;

The Browser Agent

The userAgent property returns the user-agent header sent by the browser to the server:

Example

document.getElementById("demo").innerHTML = navigator.userAgent;

Warning

The information from the navigator object can often be misleading.

The navigator object should not be used to detect browser versions because:

• Different browsers can use the same name
• The navigator data can be changed by the browser owner
• Some browsers misidentify themselves to bypass site tests
• Browsers cannot report new operating systems, released later than the browser

The Browser Platform

The platform property returns the browser platform (operating system):

Example

document.getElementById("demo").innerHTML = navigator.platform;

Is Java Enabled?

The javaEnabled() method returns true if Java is enabled:

Example

document.getElementById("demo").innerHTML = navigator.javaEnabled();