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84 lines
2.6 KiB
Markdown
84 lines
2.6 KiB
Markdown
<h1 align="center">
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<br>
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<img width="256" src="media/logo.png" alt="pinkie">
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<br>
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<br>
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</h1>
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> Itty bitty little widdle twinkie pinkie [ES2015 Promise](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects) implementation
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[](https://travis-ci.org/floatdrop/pinkie) [](https://coveralls.io/github/floatdrop/pinkie?branch=master)
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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.
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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).
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## Install
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```
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$ npm install --save pinkie
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```
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## Usage
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```js
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var fs = require('fs');
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var Promise = require('pinkie');
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new Promise(function (resolve, reject) {
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fs.readFile('foo.json', 'utf8', function (err, data) {
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if (err) {
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reject(err);
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return;
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}
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resolve(data);
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});
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});
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//=> Promise
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```
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### API
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`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:
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#### new Promise(executor)
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Returns new instance of `Promise`.
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##### executor
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*Required*
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Type: `function`
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Function with two arguments `resolve` and `reject`. The first argument fulfills the promise, the second argument rejects it.
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#### pinkie.all(promises)
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Returns a promise that resolves when all of the promises in the `promises` Array argument have resolved.
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#### pinkie.race(promises)
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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.
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#### pinkie.reject(reason)
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Returns a Promise object that is rejected with the given `reason`.
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#### pinkie.resolve(value)
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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`.
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## Related
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- [pinkie-promise](https://github.com/floatdrop/pinkie-promise) - Returns the native Promise or this module
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## License
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MIT © [Vsevolod Strukchinsky](http://github.com/floatdrop)
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