BrowserVersionOwn?TypeAs String
BingPreview1.0.0???
Chrome49.0.2623ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome69.0.3497???
Chrome70.0.3538ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome76.0.3809???
Chrome78.0.3904ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome79.0.3945???
Chrome80.0.3987ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome83.0.4089???
Chrome84.0.4147ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome89.0.4354???
Chrome89.0.4386ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Chrome89.0.4387???
Edge85.0.564???
Edge86.0.622ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Edge87.0.651???
Edge87.0.658ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Edge87.0.664???
Edge88.0.670ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Edge89.0.723???
Firefox68.0.0???
Firefox78.0.0ownfunctionfunction ServiceWorkerRegistration() { [native code] }
IE10.0.0???
requests2.25.0???
Safari10.1.2???
Safari12.0.0ownfunctionfunction ServiceWorkerRegistration() { [native code] }
Safari14.0.3???
SamsungBrowser13.0.0???
YandexBot3.0.0ownfunctionfunction ServiceWorkerRegistration() { [native code] }

PropertiesBingPreviewChromeEdgeFirefoxIErequestsSafariSamsungBrowserYandexBot
length? 49.0.2623 86.0.622 70.0.0?? 4.0.0? 3.0.0
prototype? 49.0.2623 86.0.622 70.0.0?? 4.0.0? 3.0.0