nuo

:two_hearts: Lightweight promise polyfill. A+ compliant. Implements notify, progress, and finally.

Usage no npm install needed!

<script type="module">
  import nuo from 'https://cdn.skypack.dev/nuo';
</script>

README

诺(諾)nuò

:two_hearts: Lightweight ES6 Promise polyfill for the browser and node. Adheres closely to the spec. It is a perfect polyfill IE, Firefox or any other browser that does not support native promises.

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This implementation is based on taylorhakes/promise-polyfill and then/promise. It has been changed to use the prototype for performance and memory reasons.

For API information about Promises, please check out this article HTML5Rocks article.

Changelog

1.0.0: should NOT override global promise

Browser Support

IE8+, Chrome, Firefox, IOS 4+, Safari 5+, Opera

Usage

$ npm install nuo --save
import Promise from 'nuo'

new Promise((resolve, reject, notify) => {
  // resolve, reject, notify
}).then(value => {
  // do something
}).catch(error => {
  // do something
}).progress(value => {
  // do something
}).finally(() => {
  // do something
})

warning: the non-standard progress and finally are NOT recommended to use, though they are working fine.

Testing

npm install
npm test

License

MIT