Clicca e rilascia 3

'Questo esempio utilizza il metodo addEventListener () per allegare un evento "mousedown" e "mouseup" all'elemento ap.

<!DOCTYPE html>
<html>
<body>

<p>This example uses the addEventListener() method to attach a "mousedown" and "mouseup" event to a p element.</p>

<p id="demo">Click me.</p>

<script>
document.getElementById("demo").addEventListener("mousedown", mouseDown);
document.getElementById("demo").addEventListener("mouseup", mouseUp);

function mouseDown() {
document.getElementById("demo").innerHTML = "The mouse button is held down.";
}

function mouseUp() {
document.getElementById("demo").innerHTML = "You released the mouse button.";
}
</script>

</body>
</html>