Constructor
new EventArgs(_cancelableopt)
Create new EventArgs. Allows specifying a cancelable parameter as optional argument, which defaults to false.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
_cancelable |
boolean |
<optional> |
Optional: provide a boolean to set whether this event is cancelable (default: prototype value, which is false for EventArgs). |
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Members
(readonly) cancelable :boolean
The cancelable flag determines whether this event has behavior that can be canceled.
Type:
- boolean
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(readonly) defaultPrevented :boolean
This value is true if the event got canceled (preventDefault was called, and cancelable is true).
Type:
- boolean
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Methods
preventDefault()
The preventDefault method will flag the EventArgs as defaultPrevented, if cancelable is true.
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