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

PropertiesChromeEdgeFirefoxJava
back 91.0.4472 92.0.902 90.0.0?
constructor????
forward 91.0.4472 92.0.902 90.0.0?
go 91.0.4472 92.0.902 90.0.0?
length 80.0.3987 92.0.902 90.0.0?
prototype 80.0.3987 92.0.902 90.0.0?
pushState 91.0.4472 92.0.902 90.0.0?
replaceState 91.0.4472 92.0.902 90.0.0?
scrollRestoration 91.0.4472 92.0.902 90.0.0?
state 91.0.4472 92.0.902 90.0.0?