BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
Chrome27.0.1500???
Edge85.0.564???
Firefox46.8.0???
Firefox70.0.0ownfunctionfunction FileSystemFileEntry() { [native code] }
Firefox88.0.0???
Firefox89.0.0ownfunctionfunction FileSystemFileEntry() { [native code] }
IE10.0.0???
Safari4.0.0???
Safari12.0.0ownfunctionfunction FileSystemFileEntry() { [native code] }
Safari13.0.3???
Safari13.0.4ownfunctionfunction FileSystemFileEntry() { [native code] }
Safari14.2.0???
SamsungBrowser13.0.0???
SFive80.0.0???
TkBot0.1.0???
YandexBot3.0.0???

PropertiesBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserSFiveTkBotYandexBot
length??? 70.0.0? 12.0.0????
prototype??? 70.0.0? 12.0.0????