| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 |
- import {
- noop,
- reject as _reject
- } from '../-internal';
- /**
- `Promise.reject` returns a promise rejected with the passed `reason`.
- It is shorthand for the following:
- ```javascript
- let promise = new Promise(function(resolve, reject){
- reject(new Error('WHOOPS'));
- });
- promise.then(function(value){
- // Code here doesn't run because the promise is rejected!
- }, function(reason){
- // reason.message === 'WHOOPS'
- });
- ```
- Instead of writing the above, your code now simply becomes the following:
- ```javascript
- let promise = Promise.reject(new Error('WHOOPS'));
- promise.then(function(value){
- // Code here doesn't run because the promise is rejected!
- }, function(reason){
- // reason.message === 'WHOOPS'
- });
- ```
- @method reject
- @static
- @param {Any} reason value that the returned promise will be rejected with.
- Useful for tooling.
- @return {Promise} a promise rejected with the given `reason`.
- */
- export default function reject(reason) {
- /*jshint validthis:true */
- let Constructor = this;
- let promise = new Constructor(noop);
- _reject(promise, reason);
- return promise;
- }
|