Event at the specified
EventTarget, (synchronously) invoking the affected
EventListeners in the appropriate order. The normal event processing rules (including the capturing and optional bubbling phase) also apply to events dispatched manually with
cancelled = !target.dispatchEvent(event)
Eventobject to be dispatched.
targetis used to initialize the
Event.targetand determine which event listeners to invoke.
- The return value is
falseif event is cancelable and at least one of the event handlers which handled this event called
Event.preventDefault(). Otherwise it returns
dispatchEvent method throws
UNSPECIFIED_EVENT_TYPE_ERR if the event's type was not specified by initializing the event before the method was called, or if the event's type is
null or an empty string. Exceptions thrown by event handlers are reported as uncaught exceptions; the event handlers run on a nested callstack: they block the caller until they complete, but exceptions do not propagate to the caller.
Unlike "native" events, which are fired by the DOM and invoke event handlers asynchronously via the event loop,
dispatchEvent invokes event handlers synchronously. All applicable event handlers will execute and return before the code continues on after the call to
dispatchEvent is the last step of the create-init-dispatch process, which is used for dispatching events into the implementation's event model. The event can be created using Event constructor.
See also the Event object reference.
The definition of 'EventTarget.dispatchEvent()' in that specification.
|Living Standard||Initial definition in the DOM 2 Events specification.|
|Feature||Android webview||Chrome for Android||Edge mobile||Firefox for Android||Opera Android||iOS Safari||Samsung Internet|
1. Older versions of IE supported an equivalent, proprietary
2. Supported as