BrowserVersionOwn?TypeAs String
Chrome63.0.3214???
Chrome62.0.3202ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome62.0.3176ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome62.0.3172ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome62.0.3166???
Chrome61.0.3163ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome61.0.3159???
Chrome61.0.3156ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome61.0.3150???
Chrome61.0.3149ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome61.0.3147ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome61.0.3126???
Chrome60.0.3112ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome59.0.3071ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome58.0.3029ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome57.0.2987???
Chrome56.0.2924ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome55.0.2883???
Chrome53.0.2785???
Chrome52.0.2743ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome51.0.2704ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome50.0.2661ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome49.0.2623ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome48.0.2564ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome47.0.2526???
Chrome46.0.2490???
Chrome45.0.2454???
Chrome44.0.2403ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome43.0.2357???
Chrome42.0.2311???
Chrome41.0.2272ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome40.0.2214???
Chrome39.0.2171???
Chrome38.0.2125ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome37.0.2062ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome36.0.1985ownfunctionfunction BeforeUnloadEvent() { [native code] }
Chrome35.0.1916???
Chrome34.0.1847???
Chrome29.0.1547???
Chrome25.0.1364???
Chrome24.0.1312???
Chrome19.0.1084???
Chrome15.0.874???
Chromium60.0.3112???
CriOS59.0.3071???
Edge15.15063.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Edge14.14393.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox57.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox56.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox55.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox54.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox53.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox52.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox51.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox49.0.0???
Firefox44.0.0???
Firefox35.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox30.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox29.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox28.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox27.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox24.0.0inheritedfunctionfunction BeforeUnloadEvent() { [native code] }
Firefox18.0.0???
Firefox6.0.0???
Firefox5.0.1???
Googlebot2.1.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
IE11.0.0ownobject[object BeforeUnloadEvent]
IE10.0.0ownobject[object BeforeUnloadEvent]
IE9.0.0ownobject[object BeforeUnloadEvent]
Maxthon5.0.4ownobject[object BeforeUnloadEvent]
Safari11.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Safari10.1.2ownfunctionfunction BeforeUnloadEvent() { [native code] }
Safari10.1.1ownfunctionfunction BeforeUnloadEvent() { [native code] }
Safari10.1.0???
Safari10.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
Safari9.1.3ownobject[object BeforeUnloadEventConstructor]
Safari8.0.8ownobject[object BeforeUnloadEventConstructor]
Safari7.1.8ownobject[object BeforeUnloadEventConstructor]
Safari6.0.5???
Safari5.1.7???
Safari5.0.5???
Safari4.0.0ownfunctionfunction BeforeUnloadEvent() { [native code] }
SamsungBrowser5.4.0???
SamsungBrowser4.0.0???

PropertiesChromeChromiumCriOSEdgeFirefoxGooglebotIEMaxthonSafariSamsungBrowser
ABORT???? 24.0.0?????
ALT_MASK???? 24.0.0?????
AT_TARGET 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
BACK???? 24.0.0?????
BLUR 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
BUBBLING_PHASE 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
CAPTURING_PHASE 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
CHANGE 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
CLICK 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
CONTROL_MASK???? 24.0.0?????
DBLCLICK 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
DRAGDROP 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
ERROR???? 24.0.0?????
FOCUS 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
FORWARD???? 24.0.0?????
HELP???? 24.0.0?????
KEYDOWN 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
KEYPRESS 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
KEYUP 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
length 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
LOAD???? 24.0.0?????
LOCATE???? 24.0.0?????
META_MASK???? 24.0.0?????
MOUSEDOWN 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOUSEDRAG 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOUSEMOVE 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOUSEOUT 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOUSEOVER 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOUSEUP 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
MOVE???? 24.0.0?????
NONE 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
prototype 36.0.1985?? 14.14393.0 24.0.0 2.1.0 9.0.0 5.0.4 4.0.0?
RESET???? 24.0.0?????
RESIZE???? 24.0.0?????
SCROLL???? 24.0.0?????
SELECT 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
SHIFT_MASK???? 24.0.0?????
SUBMIT???? 24.0.0?????
TEXT???? 24.0.0?????
toString 36.0.1985??? 24.0.0 2.1.0?? 4.0.0?
UNLOAD???? 24.0.0?????
XFER_DONE???? 24.0.0?????