Install

npm i --save add-callback-to-promise

Use

Makes it easier to create a function which returns a Promise but also allows a user to specify a callback.

Example

const addCallbackToPromise = require('add-callback-to-promise')

function somethingLongrunning(options, callback /*optional*/)
	let p = new Promise((resolve, reject) => {
		// Some code here

		if(err) {
			return reject(err)
		}
		resolve(result)
	})
	return addCallbackToPromise(p, callback)
}