84 lines
2.6 KiB
Markdown
84 lines
2.6 KiB
Markdown
<h1 align="center">
|
|
<br>
|
|
<img width="256" src="media/logo.png" alt="pinkie">
|
|
<br>
|
|
<br>
|
|
</h1>
|
|
|
|
> Itty bitty little widdle twinkie pinkie [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) implementation
|
|
|
|
[](https://travis-ci.org/floatdrop/pinkie) [](https://coveralls.io/github/floatdrop/pinkie?branch=master)
|
|
|
|
There are [tons of Promise implementations](https://github.com/promises-aplus/promises-spec/blob/master/implementations.md#standalone) out there, but all of them focus on browser compatibility and are often bloated with functionality.
|
|
|
|
This module is an exact Promise specification polyfill (like [native-promise-only](https://github.com/getify/native-promise-only)), but in Node.js land (it should be browserify-able though).
|
|
|
|
|
|
## Install
|
|
|
|
```
|
|
$ npm install --save pinkie
|
|
```
|
|
|
|
|
|
## Usage
|
|
|
|
```js
|
|
var fs = require('fs');
|
|
var Promise = require('pinkie');
|
|
|
|
new Promise(function (resolve, reject) {
|
|
fs.readFile('foo.json', 'utf8', function (err, data) {
|
|
if (err) {
|
|
reject(err);
|
|
return;
|
|
}
|
|
|
|
resolve(data);
|
|
});
|
|
});
|
|
//=> Promise
|
|
```
|
|
|
|
|
|
### API
|
|
|
|
`pinkie` exports bare [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) implementation and polyfills [Node.js rejection events](https://nodejs.org/api/process.html#process_event_unhandledrejection). In case you forgot:
|
|
|
|
#### new Promise(executor)
|
|
|
|
Returns new instance of `Promise`.
|
|
|
|
##### executor
|
|
|
|
*Required*
|
|
Type: `function`
|
|
|
|
Function with two arguments `resolve` and `reject`. The first argument fulfills the promise, the second argument rejects it.
|
|
|
|
#### pinkie.all(promises)
|
|
|
|
Returns a promise that resolves when all of the promises in the `promises` Array argument have resolved.
|
|
|
|
#### pinkie.race(promises)
|
|
|
|
Returns a promise that resolves or rejects as soon as one of the promises in the `promises` Array resolves or rejects, with the value or reason from that promise.
|
|
|
|
#### pinkie.reject(reason)
|
|
|
|
Returns a Promise object that is rejected with the given `reason`.
|
|
|
|
#### pinkie.resolve(value)
|
|
|
|
Returns a Promise object that is resolved with the given `value`. If the `value` is a thenable (i.e. has a then method), the returned promise will "follow" that thenable, adopting its eventual state; otherwise the returned promise will be fulfilled with the `value`.
|
|
|
|
|
|
## Related
|
|
|
|
- [pinkie-promise](https://github.com/floatdrop/pinkie-promise) - Returns the native Promise or this module
|
|
|
|
|
|
## License
|
|
|
|
MIT © [Vsevolod Strukchinsky](http://github.com/floatdrop)
|