MessageEvent

class MessageEvent <T = any> extends Event {

constructor( type: string , eventInitDict?: MessageEventInit);

readonly data : T;

readonly lastEventId : string;

readonly ports : ReadonlyArray<MessagePort>;

}

Type Parameters

T = any

Event

new MessageEvent( type: string , eventInitDict?: MessageEventInit)

data : T

Returns the data of the message.

lastEventId : string

Returns the last event ID string, for server-sent events.

ports : ReadonlyArray<MessagePort>

Returns transferred ports.