BrowserVersionOwn?TypeAs String
Chrome79.0.3945???
Chrome84.0.4147ownfunctionfunction ContactsManager() { [native code] }
Chrome85.0.4183???
Edge85.0.564???
Firefox68.0.0???
IE10.0.0???
Safari10.1.2???
YandexBot3.0.0???

PropertiesChromeEdgeFirefoxIESafariYandexBot
length 84.0.4147?????
prototype 84.0.4147?????