BrowserVersionOwn?TypeAs String
AppleWebit537.36.0???
BingPreview1.0.0???
Chrome56.0.2924???
Chrome95.0.4638ownfunctionfunction VTTRegion() { [native code] }
Chrome96.0.4648???
Edge84.0.522???
Edge100.0.1185ownfunctionfunction VTTRegion() { [native code] }
Edge101.0.1210???
Firefox3.6.12???
Firefox90.0.0ownfunctionfunction VTTRegion() { [native code] }
Firefox92.0.0???
Firefox93.0.0ownfunctionfunction VTTRegion() { [native code] }
Firefox94.0.2???
Firefox95.0.0ownfunctionfunction VTTRegion() { [native code] }
Firefox102.0.0???
FxiOS36.0.0???
IE11.0.0???
Mobile15.0.0???
render2.0.0???
Safari4.0.0???
Safari14.0.2ownfunctionfunction VTTRegion() { [native code] }
Safari14.1.0???
Safari14.1.1ownfunctionfunction VTTRegion() { [native code] }
Safari15.1.0???
Safari15.2.0ownfunctionfunction VTTRegion() { [native code] }
Safari537.36.0???
YandexBot3.0.0???

PropertiesAppleWebitBingPreviewChromeEdgeFirefoxFxiOSIEMobilerenderSafariYandexBot
length?? 95.0.4638 100.0.1185 90.0.0???? 14.0.0?
prototype?? 95.0.4638 100.0.1185 90.0.0???? 14.0.0?