Resumen
Regresa una cadena (string) que contiene un tipo de evento.
El event argument de element.addEventListener() y element.removeEventListener() son casos insensibles.
para una lista de eventos displonibles, visita https://developer.mozilla.org/es/DOM/DOM_event_reference
Syntaxis
event.type
Ejemplo
var string = event.type;
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Event.type Example</title>
<script>
var currEvent = null;
function getEvtType(evt) {
console.log("//Start------------getEvtType(evt)------------ ");
currEvent = evt.type;
console.log(currEvent);
//document.getElementById("Etype").firstChild.nodeValue = currEvent;
document.getElementById("Etype").innerHTML = currEvent;
console.log("//End--------------getEvtType(evt)------------ ");
}
//Keyboard events
document.addEventListener("keypress", getEvtType, false); //[second]
document.addEventListener("keydown", getEvtType, false); //first
document.addEventListener("keyup", getEvtType, false); //third
//Mouse events
document.addEventListener("click", getEvtType, false); // third
document.addEventListener("mousedown", getEvtType, false); //first
document.addEventListener("mouseup", getEvtType, false); //second
</script>
</head>
<body>
<p>Press any key or click the mouse to get the event type.</p>
<p>Event type: <span id="Etype" style="color:red">-</span></p>
</body>
</html>