I'm using caolan's async.js library, specifically the .each method. How do you get access to the index in the iterator? async.each(ary, function(element, callback){ //do stuff here for each elem...

I wrote a module in node.js that performs some network operation. I wrote a small script that uses this module (the variable check below). It looks like this: check(obj, function (err, results) { ...

The nodejs async module: https://github.com/caolan/async provides 2 similar methods, async.waterfall and async.series. What is the difference between them?

I am trying to execute a series of functions, each passing the callback to the next. Right now it looks like this (excuse any minor errors, I am rewriting it as I post!): function func1(callback) ...

I am using aync.parallel to run two functions in parallel. The functions request RSS feeds. Then the RSS feeds are parsed and added to my web page. But for some reason async.parallel runs the call...

In many examples of Nodejs/Express, I see that calling next() is optional in case of success. exports.postLogin = (req, res, next) => { passport.authenticate("local", (err, user, info) =>...

I am using the node async lib - https://github.com/caolan/async#forEach and would like to iterate through an object and print out its index key. Once complete I would like execute a callback. Here...

I need to perform a cyclic call to some external API with some delay, to prevent from 'User Rate Limit Exceeded' restriction. Google Maps Geocoding API is sensitive to 'req/sec', allowing 10 req/s...

I have a question regarding passing arguments in async.waterfall() to the third function rather than the first function. For example, as following async.waterfall([ first, second, async.apply(t...

I have nested inner functions with callback that are with in the single function(abcd). I need to call abcd function from outside using async and return the response. var listFunctions = { test1...

So lets say fruits is an array containing 4 items What I expected was that the code below would print fruit with a 4 second delay between each fruit. var fruits = ['blueberries', 'strawberries', '...

I'm studying the node.js module async, but I have some problems with the function async.retry. According to its github docs, the function will continue trying the task until it succeeds or chances...

I'm new to Node.Js and JavaScript web development on the backend. I see that callbacks inside callbacks could be a pain and there are modules to avoid that. One of these modules is async, https://g...

var async = require('async'); async.parallel([ function(cb) { cb(true); }, function(cb) { cb(null, true); }], function(error, results) { } ); In the code, if the first task runs cb(true)...

I'm using the Q library and async library in nodejs. Here's an example of my code: async.each(items, cb, function(item) { saveItem.then(function(doc) { cb(); }); }, function() { }); saveI...

I am trying to reduce the nesting of async calls (node + socket.io) by using async.waterfall and I ended up having to append parameters down the waterfall because they are needed later. This code m...

This piece of code was taken straight out of the example from: https://github.com/caolan/async#seriestasks-callback var async = require("async"); async.series([ function() { console.log("a"); },...

I am using the node.js async package, specifically forEachSeries, to make a series of http requests based on parameters drawn from an array. In the callback of each request I have some if/else stat...