Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
Note: This feature is available in Web Workers.
The platform read-only property of the NavigatorUAData interface returns the platform brand information.
A string containing the platform brand. For example, "Windows".
The following example prints the value of platform to the console.
console.log(navigator.userAgentData.platform);Sec-CH-UA-Platform header (a low-entropy client hint) contains the same information.