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https://github.com/romagny13/ts-promise
TypeScript Promise
https://github.com/romagny13/ts-promise
promise typescript
Last synced: 12 days ago
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TypeScript Promise
- Host: GitHub
- URL: https://github.com/romagny13/ts-promise
- Owner: romagny13
- License: mit
- Created: 2017-02-20T17:23:48.000Z (almost 8 years ago)
- Default Branch: master
- Last Pushed: 2017-04-02T19:28:06.000Z (almost 8 years ago)
- Last Synced: 2024-05-01T17:06:32.503Z (9 months ago)
- Topics: promise, typescript
- Language: JavaScript
- Size: 197 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# TypeScript Promise
Light promise polyfill easy to understand.
[](https://travis-ci.org/romagny13/ts-promise)
```
npm i romagny13-ts-promise -S
```
Support (documentation):
- Promise
- all (parallel)
- race
## With TypeScript
```js
import * as TSPromise from 'romagny13-ts-promise';
let p1 = new TSPromise((resolve, reject) => {
/* support :
- resolve
- reject
- throw exception
*/
setTimeout(() => {
resolve('P1 resolved');
}, 500);
});
p1.then((result) => {
/* support :
- return value
- throw exception
*/
}, (reason) => {
/* support :
- return value
- throw exception
*/
});
```
Chaining and ignore useless callbacks (example with all)
```js
let p1 = new TSPromise((resolve, reject) => resolve('p1 resolved'));
let p2 = new TSPromise((resolve, reject) => resolve('p2 resolved'));
TSPromise.all([p1, p2]).then((result) => {
return 'return value';
}).catch(() => { })
.catch(() => { })
.catch(() => { })
.catch(() => { })
.then((result) => {
// ... result 'return value'
});
```
Or with an exception
```js
let p1 = new TSPromise((resolve, reject) => resolve('p1 resolved'));
let p2 = new TSPromise((resolve, reject) => resolve('p2 resolved'));
TSPromise.all([p1, p2]).then((result) => {
throw 'my error';
}).catch((reason) => {
// ... reason 'my error'
});
```
## es5
```html
var p1 = new TSPromise(function (resolve, reject) {
setTimeout(function () {
resolve('P1 resolved');
}, 500);
});
p1.then(function (result) {
console.log('completed:', result);
}, function (reason) {
console.log('error', reason);
});
```
## IE Polyfill
```js
window.Promise = window.Promise || TSPromise;
var p1 = new Promise(function (resolve, reject) {
resolve('P1 resolved');
});
p1.then(function (result) {
}, function (reason) {
});
```