BrowserVersionOwn?TypeAs String
BingPreview1.0.0ownobject[object JSON]
Chrome49.0.2623ownobject[object JSON]
Chrome83.0.4089???
Chrome84.0.4147ownobject[object JSON]
Chrome85.0.4183???
Chrome86.0.4240ownobject[object JSON]
Chrome89.0.4383???
Chrome89.0.4386ownobject[object JSON]
Edge85.0.564ownobject[object JSON]
Firefox68.0.0???
Firefox78.0.0ownobject[object JSON]
IE10.0.0ownobject[object JSON]
Safari10.1.2ownobject[object JSON]
Safari14.0.3???
SamsungBrowser13.0.0ownobject[object JSON]
YandexBot3.0.0ownobject[object JSON]

PropertiesBingPreviewChromeEdgeFirefoxIESafariSamsungBrowserYandexBot
parse 1.0.0 49.0.2623 85.0.564 70.0.0 10.0.0 4.0.0 13.0.0 3.0.0
stringify 1.0.0 49.0.2623 85.0.564 70.0.0 10.0.0 4.0.0 13.0.0 3.0.0
toSource??? 70.0.0????