Answer by mikemaccana for How do I return the response from an asynchronous...
2017 answer: you can now do exactly what you want in every current browser and Node.jsThis is quite simple:Return a PromiseUse the 'await', which will tell JavaScript to await the promise to be...
View ArticleAnswer by amaksr for How do I return the response from an asynchronous call?
Another solution is to execute code via the sequential executor nsynjs.If the underlying function is promisifiednsynjs will evaluate all promises sequentially, and put the promise result into the data...
View ArticleAnswer by Alireza for How do I return the response from an asynchronous call?
This is one of the places which two-way data binding or store concept that's used in many new JavaScript frameworks will work great for you...So if you are using Angular, React, or any other frameworks...
View ArticleAnswer by T.J. Crowder for How do I return the response from an asynchronous...
Most of the answers here give useful suggestions for when you have a single async operation, but sometimes, this comes up when you need to do an asynchronous operation for each entry in an array or...
View ArticleAnswer by Mahfuzur Rahman for How do I return the response from an...
Use a callback() function inside the foo() success.Try it in this way. It is simple and easy to understand.var lat = "";var lon = "";function callback(data) { lat = data.lat; lon = data.lon;}function...
View ArticleAnswer by Mohan Dere for How do I return the response from an asynchronous call?
Here are some approaches to work with asynchronous requests:Browser Promise objectQ - A promise library for JavaScriptA+ Promises.jsjQuery deferredXMLHttpRequest APIUsing callback concept - As...
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Answer by Johannes Fahrenkrug for How do I return the response from an...
I will answer with a horrible-looking, hand-drawn comic. The second image is the reason why result is undefined in your code example.
View ArticleAnswer by Francisco Carmona for How do I return the response from an...
Have a look at this example:var app = angular.module('plunker', []);app.controller('MainCtrl', function($scope,$http) { var getJoke = function(){ return...
View ArticleAnswer by Vinoth Rajendran for How do I return the response from an...
You can use this custom library (written using Promise) to make a remote call.function $http(apiConfig) { return new Promise(function (resolve, reject) { var client = new XMLHttpRequest();...
View ArticleAnswer by Pablo Matias Gomez for How do I return the response from an...
The short answer is, you have to implement a callback like this:function callback(response) { // Here you can do what ever you want with the response object. console.log(response);}$.ajax({ url: "...",...
View ArticleAnswer by loretoparisi for How do I return the response from an asynchronous...
The following example I have written shows how toHandle asynchronous HTTP calls;Wait for response from each API call;Use Promise pattern;Use Promise.all pattern to join multiple HTTP calls;This working...
View ArticleAnswer by rohithpr for How do I return the response from an asynchronous call?
While promises and callbacks work fine in many situations, it is a pain in the rear to express something like:if (!name) { name = async1();}async2(name);You'd end up going through async1; check if name...
View ArticleAnswer by user663031 for How do I return the response from an asynchronous call?
We find ourselves in a universe which appears to progress along a dimension we call "time". We don't really understand what time is, but we have developed abstractions and vocabulary that let us reason...
View ArticleAnswer by David R Tribble for How do I return the response from an...
Short answer: Your foo() method returns immediately, while the $ajax() call executes asynchronously after the function returns. The problem is then how or where to store the results retrieved by the...
View ArticleAnswer by jsbisht for How do I return the response from an asynchronous call?
Another approach to return a value from an asynchronous function, is to pass in an object that will store the result from the asynchronous function.Here is an example of the same:var async =...
View ArticleAnswer by Benjamin Gruenbaum for How do I return the response from an...
If you're using promises, this answer is for you.This means AngularJS, jQuery (with deferred), native XHR's replacement (fetch), Ember.js, Backbone.js's save or any Node.js library that returns...
View ArticleAnswer by Maleen Abewardana for How do I return the response from an...
Angular 1People who are using AngularJS, can handle this situation using promises.Here it says,Promises can be used to unnest asynchronous functions and allows one to chain multiple functions...
View ArticleAnswer by Nic for How do I return the response from an asynchronous call?
You are using Ajax incorrectly. The idea is not to have it return anything, but instead hand off the data to something called a callback function, which handles the data.That is:function handleData(...
View ArticleAnswer by Hemant Bavle for How do I return the response from an asynchronous...
The simplest solution is to create a JavaScript function and call it for the Ajax success callback.function callServerAsync(){ $.ajax({ url: '...', success: function(response) {...
View ArticleAnswer by cocco for How do I return the response from an asynchronous call?
XMLHttpRequest 2 (first of all, read the answers from Benjamin Gruenbaum and Felix Kling)If you don't use jQuery and want a nice short XMLHttpRequest 2 which works in the modern browsers and also in...
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