Standard asCallback

A performant and standard (Bluebird) library that registers a node-style callback on a promise. It's used by ioredis.

 

Install

``
$ npm install @ioredis/as-callback
`

Usage

`javascript
const asCallback = require('@ioredis/as-callback').defaults;

const promise = new Promise(function (resolve) {
setTimeout(function () {
resolve('hello world!')
}, 1000)
})

asCallback(promise, function callback (err, res) {
console.log(err, res) // null, 'hello world!'
})
`

Motivation


There are many libraries serve similar functionality. However, none of them I'd found are exactly the same as Bluebird's asCallback` function (in terms of either performance or functionality). Thus this library comes out.

Thanks

Most code of this library are ported from the awesome Bluebird library.

License

The MIT License.