cancelable event attribute
cancelable Event properties
Definition and usage
The cancelable event returns a Boolean value. True if the default action associated with the event can be canceled using the preventDefault() method, fasle otherwise.
Syntax
event.cancelable
Example
Example
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script>
function myFunction(e){
alert(e.cancelable);
}
</script>
</head>
<body>
<p onclick="myFunction(event)">单击这个段落，如果事件是可以取消的将弹出警告框。</p>
</body>
</html>Run Instance»
Click the "Run Instance" button to view the online instance
