How to use navigator object in JavaScript
This article introduces the knowledge of "how to use navigator objects in JavaScript". In the operation of actual cases, many people will encounter such a dilemma, so let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!
Browser application name
The appName property returns the application name of the browser:
Example
Document.getElementById ("demo"). InnerHTML = "navigator.appName is" + navigator.appName
Strange to you, "Netscape" is a general name for the application names of IE11, Chrome, Firefox, and Safari.
Browser application code name
The appCodeName property returns the browser's application code name:
Example
Document.getElementById ("demo"). InnerHTML = "navigator.appCodeName is" + navigator.appCodeName
"Mozilla" is the application code name for Chrome, Firefox, IE, Safari, and Opera.
Browser engine
The product property returns the product name of the browser engine:
Example
Document.getElementById ("demo"). InnerHTML = "navigator.product is" + navigator.product
Browser version
The appVersion property returns version information about the browser:
Example
Document.getElementById ("demo"). InnerHTML = navigator.appVersion
Browser proxy
The userAgent property returns the user agent header (user-agent header) sent by the browser to the server:
Example
Document.getElementById ("demo"). InnerHTML = navigator.userAgent
Warning!
Information from navigator objects is often misleading and should not be used to detect browser versions because:
Different browsers can use the same name
Navigation data can be changed by browser owner
Some browsers misidentify themselves to bypass site tests
The browser cannot report a new operating system released later than the browser
Browser platform
The platform property returns the browser platform (operating system):
Example
Document.getElementById ("demo"). InnerHTML = navigator.platform
Browser language
The language property returns the browser 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
Is Java enabled?
The javaEnabled () method returns true, if Java is enabled:
Example
Document.getElementById ("demo"). InnerHTML = navigator.javaEnabled ()
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