async eventemitter

var EventEmitter = require('nodeasync').EventEmitter;

var myEmitter = new EventEmitter(); myEmitter.on("save", function (param1, param2, param3, next) { //do some async work here and call next console.log("param1>>>" + JSON.stringify(param1)); next(); })

myEmitter.emit("save", {person:"A"}, function () { //it will be called after calling each on for save console.log("ok") })

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var Iterator = require('nodeasync').Iterator;

var emails = ["a@a.com", "b@b.com"];

var emailIterator = new Iterator(emails, function (index, emailid, next) { //it will be called for each element in array //after doing some async work call next console.log(emailid) next();

});

emailIterator.iterate(function (err) { //it will be called after iterating each element console.log("complete") })