BrowserVersionOwn?TypeAs String
Chrome94.0.4590???
Edge92.0.902ownobject[object CustomElementRegistry]
Firefox90.0.0ownobject[object CustomElementRegistry]
Java11.0.10???
requests2.26.0???

PropertiesChromeEdgeFirefoxJavarequests
define 88.0.4324 92.0.902 90.0.0??
get 88.0.4324 92.0.902 90.0.0??
upgrade 88.0.4324 92.0.902 90.0.0??
whenDefined 88.0.4324 92.0.902 90.0.0??