addEventListener ("beforeunload", function (e) { var confirmationMessage = "你還沒有完成你的文章，就 ... javascript detect browser close tab/close browser ... ... <看更多>

addEventListener ("beforeunload", function(e){ // Do something }, false);. Usually, onbeforeunload is used if you need to stop the user from ... ... <看更多>

AddEventListener ("open", false, onOpen). ws.AddEventListener("message", false, onMessage). ws.AddEventListener("close", false, onClose). ... <看更多>

To close a notification, you call the close() method of the Notification object ... To handle these events, you use the addEventListener() method of the ... ... <看更多>