BrowserVersionOwn?TypeAs String
ALAFISH89.0.4389???
Chrome38.0.2125???
Chrome49.0.2623ownobject[object Object]
Chrome68.0.3440???
Edge17.17134.0???
Firefox51.0.0???
FxiOS33.0.0???
IE10.0.0ownobject[object ClientRectListPrototype]
Safari4.0.0???
Safari10.1.2ownobject[object ClientRectListPrototype]
Safari11.0.0???

PropertiesALAFISHChromeEdgeFirefoxFxiOSIESafari
constructor? 49.0.2623???? 10.1.2
item? 49.0.2623???? 10.1.2
length? 49.0.2623???? 10.1.2