Baseline Widely available
Note: This feature is available in Web Workers.
The MessageEvent() constructor creates a new MessageEvent object.
new MessageEvent(type)
new MessageEvent(type, options)
type
A string with the name of the event. It is case-sensitive and browsers always set it to message.
options Optional
An object that, in addition of the properties defined in Event(), can have the following properties:
data Optional
The data you want contained in the MessageEvent. This can be of any data type, and will default to null if not specified.
origin Optional
A string representing the origin of the message emitter. This defaults to an empty string ('') if not specified.
lastEventId Optional
A string representing a unique ID for the event. This defaults to an empty string ("") if not specified.
source Optional
A MessageEventSource (which can be a Window, a MessagePort, or a ServiceWorker object) representing the message emitter. This defaults to null if not set.
ports Optional
An array of MessagePort objects containing all MessagePort objects sent with the message, in order. This defaults to an empty array ([]) if not specified.
A new MessageEvent object.
const myMessage = new MessageEvent("message", {
data: "hello",
});
ExtendableMessageEvent â similar to this interface but used in interfaces that needs to give more flexibility to authors.RetroSearch is an open source project built by @garambo | Open a GitHub Issue
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.4