proback.js

proback.js - dependency-free very minimal helper for APIs with Promise/callback dual design

========

proback.js is an extremely tiny helper library to help the creation of APIs where functions are aimed to enable Promise-based and callback-based usage as well.

Usage Rules

Usage

Command line:

npm install proback.js --save

In JS code:

	var Proback = require('proback.js');
	...
	new Promise( function (resolve, reject) {
		//some callback is needed?
		object.fnCallWithCallback( data, Proback.handler( null, resolve, reject ) )
	}).then( function (res) {
		expect(res).to.equal('Done.')
		done()
	})

	var Proback = require('proback.js');
	...
	new Promise( function (resolve, reject) {
		//some callback is needed?
		object.fnCallWithCallback( data, function (err, res) {
			if (err) return Proback.rejecter(err, null, reject)
			// some operation
			return Proback.resolver(res, null, resolve)
		} )
	}).then( function (res) {
		expect(res).to.equal('Done.')
		done()
	})