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.
一些示例
navigator.cookieEnablednavigator.appCodeNamenavigator.platform
Browser Cookies
The cookieEnabled property returns true if cookies are enabled, otherwise false
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"cookiesEnabled is " + navigator.cookieEnabled;
</script>
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Browser Application Name
The appName property returns the application name of the browser
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.appName is " + navigator.appName;
</script>
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警告
This property is removed (deprecated) in the latest web standard.
Most browsers (IE11, Chrome, Firefox, Safari) returns Netscape as appName.
Browser Application Code Name
The appCodeName property returns the application code name of the browser
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.appCodeName is " + navigator.appCodeName;
</script>
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警告
This property is removed (deprecated) in the latest web standard.
Most browsers (IE11, Chrome, Firefox, Safari, Opera) returns Mozilla as appCodeName.
The Browser Engine
The product property returns the product name of the browser engine
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML =
"navigator.product is " + navigator.product;
</script>
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警告
This property is removed (deprecated) in the latest web standard.
Most browsers returns Gecko as product.
The Browser Version
The appVersion property returns version information about the browser
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.appVersion;
</script>
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The Browser Agent
The userAgent property returns the user-agent header sent by the browser to the server
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.userAgent;
</script>
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警告
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)
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.platform;
</script>
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The Browser Language
The language property returns the browser's language
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.language;
</script>
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Is The Browser Online?
The onLine property returns true if the browser is online
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.onLine;
</script>
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Is Java Enabled?
The javaEnabled() method returns true if Java is enabled
示例
<p id="demo"></p>
<script>
document.getElementById("demo").innerHTML = navigator.javaEnabled();
</script>
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