PromiseRejectionEvent()
The PromiseRejectionEvent()
constructor returns a newly created PromiseRejectionEvent
, which represents events fired when a JavaScript Promise
is rejected.
Syntax
JavaScript
Copy Code
new PromiseRejectionEvent(type, {
promise: somePromise,
reason : someValue
});
Parameters
The PromiseRejectionEvent()
constructor also inherits arguments from Event()
.
type
- A string representing the name of the type of the
PromiseRejectionEvent
. This is case-sensitive and must be one of"rejectionhandled"
or"unhandledrejection"
. promise
- The
Promise
which was rejected. reason
- Any value or
Object
which represents the reason the promise was rejected.
Specifications
Specification | Status | Comment |
---|---|---|
WHATWG HTML Living Standard The definition of 'PromiseRejectionEvent()' in that specification. |
Living Standard | Initial definition. |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 49 | No support | No support | No support | No support |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | No support | No support | No support | No support | No support |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/promiserejectionevent/promiserejectionevent