cancelableEvent Property

事件对象参考手册Event Object

Definition and Usage

The cancelable event returns a Boolean value. If the default action associated with the event can be canceled with the preventDefault() method, it is true, otherwise it is fasle.

Syntax

event.cancelable
 

Example

Example

The following example will detect whether the event that occurred is a cancelable event:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Example Tutorial (example.com)</title>
<script>
function myFunction(e){
    alert(e.cancelable);
}
</script>
</head>
<body>

<p onclick="myFunction(event)">Click this paragraph, if the event is cancelable, an alert box will pop up.</p>

</body>
</html>

Try it »


事件对象参考手册Event Object Other Extensions