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

PropertiesChromeEdgeFirefoxJava
apply 80.0.3987 92.0.902 90.0.0?
construct 80.0.3987 92.0.902 90.0.0?
defineProperty 80.0.3987 92.0.902 90.0.0?
deleteProperty 80.0.3987 92.0.902 90.0.0?
enumerate????
get 80.0.3987 92.0.902 90.0.0?
getOwnPropertyDescriptor 80.0.3987 92.0.902 90.0.0?
getPrototypeOf 80.0.3987 92.0.902 90.0.0?
has 80.0.3987 92.0.902 90.0.0?
isExtensible 80.0.3987 92.0.902 90.0.0?
ownKeys 80.0.3987 92.0.902 90.0.0?
preventExtensions 80.0.3987 92.0.902 90.0.0?
set 80.0.3987 92.0.902 90.0.0?
setPrototypeOf 80.0.3987 92.0.902 90.0.0?