BrowserVersionOwn?TypeAs String
Chrome81.0.4044???
Edge86.0.622???
Edge87.0.658ownfunctionfunction MSMediaKeys() { [native code] }
Edge88.0.670???
Firefox68.0.0???
HeadlessChrome81.0.4044???
IE10.0.0???
IE11.0.0ownfunction function MSMediaKeys() { [native code] }
Safari10.1.2???

PropertiesChromeEdgeFirefoxHeadlessChromeIESafari
isTypeSupported? 87.0.658?? 11.0.0?
isTypeSupportedWithFeatures? 87.0.658?? 11.0.0?
length? 87.0.658????
prototype? 87.0.658?? 11.0.0?