PropertiesChromeCriOSEdgeFirefoxGooglebotIEOperaSafariSamsungBrowser
ALT_MASK??? 27.0.0?????
AT_TARGET??? 27.0.0?????
BUBBLING_PHASE??? 27.0.0?????
CAPTURING_PHASE??? 27.0.0?????
CONTROL_MASK??? 27.0.0?????
length??? 27.0.0?????
META_MASK??? 27.0.0?????
NONE??? 27.0.0?????
prototype??? 27.0.0?????
SHIFT_MASK??? 27.0.0?????
toString??? 27.0.0?????