es6-denodeify 

> Convert callbacks to promises.

Why?
----

There's already a lot of modules in npm registry to convert callbacks to
promises. Why another?

All the modules I found for this purpuse were either depending on some
specific promise implementation, or expecting a global Promise
constructor. I needed a module that allowed me to inject the promise
implementation I'm using. And I found it, it is called
promise-denodeify, but
since a few weeks it's marked as deprecated, without any recommended
alternative solution, and it displays a warning during npm installs when
you depend on it, which makes people freak out.

I already tweeted
a really simple denodeify implementation, leveraging ES6 arrow
functions, and I like it in its brevity. I'm now publishing it as a npm
package.

Usage
-----

``js
const denodeify = require('es6-denodeify')(Promise)
const fs = require('fs')
const readFile = denodeify(fs.readFile)

readFile('package.json', 'utf8').then(console.log)
`

If you have a global Promise constructor and you want es6-denodeify to
use it, you can ommit the explicit Promise injection.

`js
const denodeify = require('es6-denodeify')()
``