BrowserVersionOwn?TypeAs String
Analyzer0.2.0???
BingPreview1.0.0???
Chrome49.0.2623???
Edge85.0.564???
Firefox56.0.0???
IE10.0.0???
IE11.0.0ownobject[object MSMediaKeyNeededEvent]
Safari4.0.0???
SamsungBrowser13.0.0???
SFive80.0.0???
YandexBot3.0.0???

PropertiesAnalyzerBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveYandexBot
prototype????? 11.0.0????