withFeatureCheck<T>(): PromiseLike<T> | T

This method allows us to examine other features beyond navigator.userAgent. Currently this further improve the detection of the following:

• browser :
  • Brave (check for navigator.isBrave)
• device :
  • iPad (check for navigator.standalone & navigator.maxTouchPoints)

Code Example

// suppose this code runs on iPad
const withoutFeatureCheck = UAParser();
const withFeatureCheck = await UAParser().withFeatureCheck();

console.log(withoutFeatureCheck.device); // { vendor : "Apple", model : "Macintosh", type : undefined }
console.log(withFeatureCheck.device);    // { vendor : "Apple", model : "iPad", type : "tablet" }