Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The data read-only property of the Notification interface returns a structured clone of the notification's data, as specified in the data option of the Notification() constructor.
The notification's data can be any arbitrary data that you want associated with the notification.
Syntax
var data = Notification.data;
Value
A structured clone.
Examples
The following snippet fires a notification; a simple options object is created, then the notification is fired using the Notification() constructor.
var options = {
body: 'Do you like my body?',
data: 'I like peas.'
}
var n = new Notification('Test notification',options);
n.data // should return 'I like peas.'
Specifications
| Specification | Status | Comment |
|---|---|---|
| Notifications API The definition of 'data' in that specification. |
Living Standard | Living standard |
Browser compatibility
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
data | Chrome Full support Yes | Edge Full support 16 | Firefox Full support Yes | IE No support No | Opera Full support Yes | Safari ? | WebView Android No support No | Chrome Android Full support Yes | Edge Mobile ? | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS No support No | Samsung Internet Android Full support Yes |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown

