I would like to upload a file asynchronously with jQuery. This is my HTML:  <span>File</span> <input type="file" id="file" name="file" size="10"/> <input id="uploadbutton" type="butto...

I am currently reading Async Javascript by Trevor Burnham.  This has been a great book so far.  He talks about this snippet and console.log being 'async' in the Safari and Chrome console. Unfortunately I can't replicate this. Here is th...

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

I have just found that in react this.setState() function in any component is asynchronous or is called after the completion of the function that it was called in.  Now I searched and found this blog (setState() State Mutation Operation May Be Synch...

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...

I am using several plugins, custom widgets and some other libraries from JQuery. as a result I have several .js and .css files. I need to create a loader for my site because it takes some time to load. it will be nice if I can display the loader be...

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,...

Check out this code :  <a href="#" id="link">Link</a> <span>Moving</span>  $('#link').click(function () {     console.log("Enter");     $('#link').animate({ width: 200 }, 2000, functio...

First, this is a very specific case of doing it the wrong way on-purpose to retrofit an asynchronous call into a very synchronous codebase that is many thousands of lines long and time doesn't currently afford the ability to make the changes to...