Monthly archives of “August 2015”
  • async each
    10 – Exploring Async.js – async.each
    IntermediateIn this tutorial, we’re going to learn how we can use async.each to iterate through asynchronous functions to guarantee order of operation. var async = require('async'); var _ = require('lodash'); var $ = require('jquery')(require("jsdom").jsdom().parentWindow); //Returns top image from Flickr...
  • async times
    09 – Exploring Async.js – async.times
    IntermediateIn this tutorial, we’re going to learn how we can use async.times to iterate and repeat a particular function. var async = require('async'); //A complex function to insert entries to database var addEntryToDB = function(id, callback) { //Pass something to...
  • async cargo
    07 – Exploring Async.js – async.cargo
    IntermediateIn this tutorial, we’ll learn how to put your async functions on an assembly line and execute a set number of functions at a time. var async = require('async'); var _ = require('lodash'); //Generate an array of 10 random tasks;...
  • async retry
    08 – Exploring Async.js – async.retry
    IntermediateIn this tutorial, we’ll learn about how to retry async requests with async.retry var async = require('async'); //Async example for Sign Up flow async.auto({ get_username: function(callback){ console.log('in get_username'); // async code to get some data callback(null, 'Zhi'); }, connect_to_db:...
  • asyncjs async auto javascript
    06 – Exploring Async.js – async.auto
    IntermediateIn this tutorial, we’re going to use async auto to automatically perform a list of async functions. var async = require('async'); //Async example for Sign Up flow async.auto({ get_username: function(callback){ console.log('in get_username'); // async code to get some data...
  • asyncjs async compose javascript
    05 – Exploring Async.js – async.compose
    IntermediateIn this tutorial, we will compose multiple async functions using async.compose var async = require('async'); //async.compose(fn1,fn2...) //Composing a(), b(), c() will produce a(b(c())) //Adds 5 to num function addFive(num, callback) { callback(null, num + 5); } //Multiplies num by...
  • async whilst nodejs javascript
    04 – Exploring Async.js – async.whilst and async.forever
    IntermediateIn this tutorial, we will go over async.whilst with a very simple example of increasing a counter Whilst will execute the function fn while condition function returns true, it will call callback when the job is done or if...
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