JavaScript Window Navigator
The window.navigator object contains information about the visitor's browser.
Window Navigator
The window.navigator object can be written without the window prefix.Some examples:
- navigator.appName
- navigator.appCodeName
- navigator.platform
Browser Cookies
The cookieEnabled property returns true if cookies are enabled, otherwise false:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"cookiesEnabled is " + navigator.cookieEnabled;</script> Browser Application Name
The appName property returns the application name of the browser:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.appName is " + navigator.appName;</script> Strange enough, "Netscape" is the application name for both IE11, Chrome, Firefox, and Safari.
Browser Application Code Name
The appCodeName property returns the application code name of the browser:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.appCodeName is " + navigator.appCodeName;</script> "Mozilla" is the application code name for both Chrome, Firefox, IE, Safari, and Opera.
The Browser Engine
The product property returns the product name of the browser engine:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.product is " + navigator.product;</script> Do not rely on this. Most browsers returns "Gecko" as product name !!
The Browser Version
The appVersion property returns version information about the browser:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.appVersion;</script> The Browser Agent
The userAgent property returns the user-agent header sent by the browser to the server:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.userAgent;</script> Warning !!!
The information from the navigator object can often be misleading, and 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
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.platform;</script> The Browser Language
The language property returns the browser's language:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.language;</script> Is The Browser Online?
The onLine property returns true if the browser is online:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.onLine;</script> Is Java Enabled?
The javaEnabled() method returns true if Java is enabled:Example
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.javaEnabled();</script> 
