The read-only property returns a DOMString, which uniquely identifies the given channel with its name. This name is passed to the BroadcastChannel() constructor at creation time and is therefore read-only.

Note: This feature is available in Web Workers.


var str =;


// Connect to a channel
var bc = new BroadcastChannel('test_channel');

// More operations (like postMessage, …)

// Log the channel name to the console
console.log(; // "test_channel"

// When done, disconnect from the channel


Specification Status Comment
HTML Living Standard
The definition of '' in that specification.
Living Standard Initial definition.

Browser compatibility

BCD tables only load in the browser

See also