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.appNamenavigator.appCodeNamenavigator.platform
Browser Cookies
The cookieEnabled property returns true if cookies are enabled, otherwise false:
Example
<script>
document.getElementById("demo").innerHTML =
"cookiesEnabled is " + navigator.cookieEnabled;
</script>
Browser Application Name
The appName property returns the application name of the browser:
Example
<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
<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
<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
<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
<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
<script>
document.getElementById("demo").innerHTML = navigator.platform;
</script>
The Browser Language
The language property returns the browser's language:
Example
<script>
document.getElementById("demo").innerHTML = navigator.language;
</script>
Is The Browser Online?
The onLine property returns true if the browser is online:
Example
<script>
document.getElementById("demo").innerHTML = navigator.onLine;
</script>
Is Java Enabled?
The javaEnabled() method returns true if Java is enabled:
Example
<script>
document.getElementById("demo").innerHTML = navigator.javaEnabled();
</script>
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