BrowserVersionOwn?TypeAs String
AppleWebit537.36.0???
BingPreview1.0.0???
Chrome41.0.2226???
CriOS107.0.0???
Edge84.0.522???
Firefox68.0.0???
FxiOS36.0.0???
Googlebot2.1.0???
IE11.0.0???
Mobile15.0.0???
render2.0.0???
Safari4.0.0???
Safari11.0.0ownfunctionfunction Database() { [native code] }
Safari12.1.2???
SamsungBrowser17.0.0???
YandexBot3.0.0???

PropertiesAppleWebitBingPreviewChromeCriOSEdgeFirefoxFxiOSGooglebotIEMobilerenderSafariSamsungBrowserYandexBot
length??????????? 11.0.0??
prototype??????????? 11.0.0??