The tag read-only property of the Notification interface signifies an identifying tag for the notification, as specified in the tag option of the Notification() constructor.

The idea of notification tags is that more than one notification can share the same tag, linking them together. One notification can then be programmatically replaced with another to avoid the users' screen being filled up with a huge number of similar notifications.

Note: This feature is available in Web Workers.

Syntax

var tag = Notification.tag;

Value

A DOMString.

Examples

Our Using the Notifications API article has a good example of tag usage.

 

Specifications

 

Specification Status Comment
Notifications API
The definition of 'tag' in that specification.
Living Standard Living standard

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 webkit (see notes)
22
(Yes) 4.0 moz (see notes)
22
No support 25 6 (see notes)
Available in workers ? ? 41.0 (41.0) ? ? ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ?

(Yes)

(Yes) 4.0 moz (see notes)
22
1.0.1 moz (see notes)
1.2
No support ? No support

(Yes)

Available in workers ? ? ? 41.0 (41.0) ? ? ? ? ?

Firefox OS notes

Chrome notes

Safari notes

See also

Document Tags and Contributors

 Contributors to this page: abbycar, chrisdavidmills, jpmedley, fscholz, MHasan, kscarfone, Jeremie
 Last updated by: abbycar,