nodejs Q.js promise

var Q = require("q");

documentation for Q
https://github.com/kriskowal/q
https://github.com/kriskowal/q/wiki/API-Reference

Specification
https://promisesaplus.com

http://www.cnblogs.com/moye/p/promise_q_async.html

http://www.ituring.com.cn/article/54547

http://www.chenqing.org/2014/05/use-q-js-to-promise-in-node.html});

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise

Q.fcall(delayOne).then(delayTwo).then(delayThree).then(delayFour).done();

//

denodeify

var fs_readFile = Q.denodeify(fs.readFile) 

var promise = fs_readFile('myfile.txt')

 promise.then(console.log, console.error)

//none promise

  oauth2Client.getToken(code).then(function(){

        })

//promise

 var deferred= Q.defer();

        oauth2Client.getToken(code, deferred.makeNodeResolver());

        deferred.promise.then(function(tokens){

});


http://www.sitepoint.com/overview-javascript-promises/

http://www.sitepoint.com/deeper-dive-javascript-promises/

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nodejs Q.js promise

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