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MessagePort

This Channel Messaging API interface represents one of the two ports of a MessageChannel, allowing messages to be sent from one port and listening out for them arriving at the other.

interface MessagePort extends EventTarget {
onmessage: ((this: MessagePort, ev: MessageEvent) => any) | null;
onmessageerror: ((this: MessagePort, ev: MessageEvent) => any) | null;
addEventListener<K extends keyof MessagePortEventMap>(
type: K,
listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
options?: boolean | AddEventListenerOptions,
): void;
addEventListener(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void;
close(): void;
postMessage(message: any, transfer: Transferable[]): void;
postMessage(message: any, options?: StructuredSerializeOptions): void;
removeEventListener<K extends keyof MessagePortEventMap>(
type: K,
listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
options?: boolean | EventListenerOptions,
): void;
removeEventListener(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void;
start(): void;
}
var MessagePort: {
prototype: MessagePort;
new (): MessagePort;
};

§Extends

§Properties

§
onmessage: ((this: MessagePort, ev: MessageEvent) => any) | null
[src]
§
onmessageerror: ((this: MessagePort, ev: MessageEvent) => any) | null
[src]

§Methods

§
addEventListener<K extends keyof MessagePortEventMap>(
type: K,
listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
options?: boolean | AddEventListenerOptions,
): void
[src]
§
addEventListener(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | AddEventListenerOptions,
): void
[src]
§
close(): void
[src]

Disconnects the port, so that it is no longer active.

§
postMessage(message: any, transfer: Transferable[]): void
[src]

Posts a message through the channel. Objects listed in transfer are transferred, not just cloned, meaning that they are no longer usable on the sending side.

Throws a "DataCloneError" DOMException if transfer contains duplicate objects or port, or if message could not be cloned.

§
postMessage(message: any, options?: StructuredSerializeOptions): void
[src]
§
removeEventListener<K extends keyof MessagePortEventMap>(
type: K,
listener: (this: MessagePort, ev: MessagePortEventMap[K]) => any,
options?: boolean | EventListenerOptions,
): void
[src]
§
removeEventListener(
type: string,
listener: EventListenerOrEventListenerObject,
options?: boolean | EventListenerOptions,
): void
[src]
§
start(): void
[src]

Begins dispatching messages received on the port.