Readonly AT_Readonly BUBBLING_Readonly CAPTURING_Readonly NONEReadonly bubblesReturns true or false depending on how event was initialized. True if event goes through its target's ancestors in reverse tree order, and false otherwise.
Readonly cancelableReturns true or false depending on how event was initialized. Its return value does not always carry meaning, but true can indicate that part of the operation during which event was dispatched, can be canceled by invoking the preventDefault() method.
Readonly composedReturns true or false depending on how event was initialized. True if event invokes listeners past a ShadowRoot node that is the root of its target, and false otherwise.
Readonly currentReturns the object whose event listener's callback is currently being invoked.
Readonly defaultReturns true if preventDefault() was invoked successfully to indicate cancelation, and false otherwise.
Readonly eventReturns the event's phase, which is one of NONE, CAPTURING_PHASE, AT_TARGET, and BUBBLING_PHASE.
Readonly isReturns true if event was dispatched by the user agent, and false otherwise.
Readonly lastReturns the last event ID string, for server-sent events.
Readonly originReturns the origin of the message, for server-sent events and cross-document messaging.
Readonly portsReturns the MessagePort array sent with the message, for cross-document messaging and channel messaging.
Readonly sourceReturns the WindowProxy of the source window, for cross-document messaging, and the MessagePort being attached, in the connect event fired at SharedWorkerGlobalScope objects.
Readonly srcReadonly targetReturns the object to which event is dispatched (its target).
Readonly timeReturns the event's timestamp as the number of milliseconds measured relative to the time origin.
Readonly typeReturns the type of event, e.g. "click", "hashchange", or "submit".
Returns the invocation target objects of event's path (objects on which listeners will be invoked), except for any nodes in shadow trees of which the shadow root's mode is "closed" that are not reachable from event's currentTarget.
Returns the invocation target objects of event's path (objects on which listeners will be invoked), except for any nodes in shadow trees of which the shadow root's mode is "closed" that are not reachable from event's currentTarget.
Optional bubbles: booleanOptional cancelable: booleanOptional data: anyOptional origin: stringOptional lastEventId: stringOptional source: null | MessageEventSourceOptional ports: MessagePort[]Optional bubbles: booleanOptional cancelable: booleanOptional data: anyOptional origin: stringOptional lastEventId: stringOptional source: null | MessageEventSourceOptional ports: Iterable<MessagePort>Optional bubbles: booleanOptional cancelable: booleanOptional data: anyOptional origin: stringOptional lastEventId: stringOptional source: null | MessageEventSourceOptional ports: MessagePort[]If invoked when the cancelable attribute value is true, and while executing a listener for the event with passive set to false, signals to the operation that caused event to be dispatched that it needs to be canceled.
If invoked when the cancelable attribute value is true, and while executing a listener for the event with passive set to false, signals to the operation that caused event to be dispatched that it needs to be canceled.
Invoking this method prevents event from reaching any registered event listeners after the current one finishes running and, when dispatched in a tree, also prevents event from reaching any other objects.
Invoking this method prevents event from reaching any registered event listeners after the current one finishes running and, when dispatched in a tree, also prevents event from reaching any other objects.
When dispatched in a tree, invoking this method prevents event from reaching any objects other than the current object.
When dispatched in a tree, invoking this method prevents event from reaching any objects other than the current object.
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Generic params for communicating with the worker.