promise

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The promise read-only property of the PromiseRejection returns the ID of the Promise that the current notification is about.

Syntax

var myPromiseRejectionId = myPromiseRejection.promise;

Value

A DOMString that represents the promise ID.

Example

var myPromiseRejection = new PromiseRejection();
var myPromiseRejectionId = myPromiseRejection.promise;

Specifications

Specification Status Comment
Unknown
The definition of 'PromiseRejectionEvent' in that specification.
Editor's Draft Initial definition.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 49.0 45.0 (45.0) No support ? No support

See also

Document Tags and Contributors

 Contributors to this page: dgashmdn
 Last updated by: dgashmdn,