This question already has an answer here:                           JavaScript closure inside loops – simple practical example                                      43 answers                                     I am running an event loop of th...

According to the docs, "Without middleware, Redux store only supports synchronous data flow". I don't understand why this is the case. Why can't the container component call the async API, and then dispatch the actions?   For exampl...

I have code that looks something like this in javascript:  forloop {     //async call, returns an array to its callback }   After ALL of those async calls are done, I want to calculate the min over all of the arrays.  How can I wait for all of them...

As the title suggests. How do I do this?   I want to call whenAllDone() after the forEach-loop has gone through each element and done some asynchronous processing.  [1, 2, 3].forEach(   function(item, index, array, done) {      asyncFunction(item,...

I have three HTTP calls that need I need to make in a synchronous manner and how do I pass data from one call to the other?  function first() {    ajax() }  function second() {    ajax() }  function third() {    ajax() }   function main() {     fir...

I'm using the async.eachLimit function to control the maximum number of operations at a time.  const { eachLimit } = require("async");  function myFunction() {  return new Promise(async (resolve, reject) => {    eachLimit((await getA...

I am thinking about it and this is what I came up with:  Let's say we have a code like this:  console.clear(); console.log("a"); setTimeout(function(){console.log("b");},1000); console.log("c"); setTimeout(function(){con...

I'm currently writing JavaScript and confusing about callback. I've found it's not kind of built-in functions though... I'm now reading O'Relly JavaScript 5th Edition and it shows a sample code something like below:  getText = f...

I'm writing a JavaScript function that makes an HTTP request and returns a promise for the result (but this question applies equally for a callback-based implementation).  If I know immediately that the arguments supplied for the function are i...

What does Asynchronous means in Ajax? and also how does Ajax know when to pull data without server polling?...