The BroadcastChannel() constructor creates a new BroadcastChannel and connects it to the underlying channel.
Note: This feature is available in Web Workers.
Syntax
channel = new BroadcastChannel(channel);
Values
- channel
- Is a
DOMStringrepresenting the name of the channel; there is one single channel with this name for all browsing contexts with the same origin.
Example
// create a new channel listening to the "internal_notification" channel.
var bc = new BroadcastChannel('internal_notification');
bc.postMessage('New listening connected!');
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'BroadcastChannel()' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BroadcastChannel() constructor | Chrome Full support 54 | Edge Full support ≤79 | Firefox Full support 38 | IE No support No | Opera Full support 41 | Safari No support No | WebView Android Full support 54 | Chrome Android Full support 54 | Firefox Android ? | Opera Android Full support 41 | Safari iOS No support No | Samsung Internet Android Full support 6.0 |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
See also
BroadcastChannel, the interface it belongs to.