BrowserVersionOwn?TypeAs String
Chrome81.0.4044???
Chrome86.0.4240ownobject[object Window]
Chrome88.0.4301???
Edge86.0.622ownobject[object Window]
Edge87.0.651ownfunctionfunction Window() { [native code] }
Edge88.0.670ownobject[object Window]
Firefox68.0.0???
Firefox79.0.0ownobject[object Window]
IE10.0.0inheritedobject[object Window]
Safari10.1.2ownfunctionfunction Window() { [native code] }

PropertiesChromeEdgeFirefoxIESafari
length 86.0.4240 86.0.622 79.0.0? 10.0.0
PERSISTENT 86.0.4240 86.0.622???
prototype 86.0.4240 86.0.622 79.0.0 10.0.0 10.0.0
TEMPORARY 86.0.4240 86.0.622???