BrowserVersionOwn?TypeAs String
Chrome38.0.2125???
Chrome68.0.3440ownfunctionfunction RTCRtpContributingSource() { [native code] }
Chrome69.0.3497???
Chrome70.0.3538ownfunctionfunction RTCRtpContributingSource() { [native code] }
Chrome74.0.3729???
Edge17.17134.0???
Firefox51.0.0???
FxiOS35.0.0???
Goanna4.8.0???
IE10.0.0???
Safari4.0.0ownfunctionfunction RTCRtpContributingSource() { [native code] }
Safari7.0.0???
Safari537.36.0ownfunctionfunction RTCRtpContributingSource() { [native code] }
SamsungBrowser14.0.0???
Stargon3.9.1???

PropertiesChromeEdgeFirefoxFxiOSGoannaIESafariSamsungBrowserStargon
length 68.0.3440????? 4.0.0??
prototype 68.0.3440????? 4.0.0??