BroadcastChannel: BroadcastChannel() constructor

The BroadcastChannel() constructor creates a new BroadcastChannel and connects it to the underlying channel.

Note: This feature is available in Web Workers

Syntax

js

new BroadcastChannel(channelName)

Parameters

channelName

A string representing the name of the channel; there is one single channel with this name for all browsing contexts with the same origin.

Examples

js

// create a new channel listening to the "internal_notification" channel.

const bc = new BroadcastChannel("internal_notification");
bc.postMessage("New listening connected!");

Specifications

Specification
HTML Standard
# dom-broadcastchannel-dev

Browser compatibility

BCD tables only load in the browser

See also