PropertiesChromeCriOSEdgeFirefoxGooglebotIEOperaSafariSamsungBrowser
fromRect 41.0.2272 62.0.3202 75.0.111 70.0.0??? 3.0.0 9.0.0
length 41.0.2272 62.0.3202 75.0.111 27.0.0??? 3.0.0 9.0.0
prototype 41.0.2272 62.0.3202 75.0.111 27.0.0??? 3.0.0 9.0.0
toString??? 27.0.0?????