synchronous

What I am trying to do is append a loading image to a div (so the user knows something is loading) and then I call a jquery ajax function, which is set to "async: false". Here is my code: $jQuery("#playersListDiv").html(loadingImage); $jQuery.ajax({ type: "POST", /* this goesn't work with GET */ url: urlValue, /*ex: "NBAgetGamesList.php" */ data: parameters, /*ex: "param1=hello" */ cache: false, async: false, success: function(data){ } }); The problem is that the browser locks and does not append the loading image until AFTER the ajax call is done which is useless of course. Firefox is the

In testing I've found that JavaScript Promises are always asynchronous regardless of whether or not they contain any asynchronous functions in their chain. Here is some code that shows the order of operations in console. If you run it you will see that even though every function is synchronous the output shows both of the aPromise() calls being run in parallel, and "surprisingly this happens after run 2 finishes" not happening before run 2 finishes. function aPromise() { return new Promise(function(resolve, reject) { console.log("making promise A") resolve(bPromise()); console.log("promise A

Currently, I'm working to replace "alert'/"confirm" with the jquery dialog. But most of legacy codes is written in some asynchronous way, which make it difficult to change. Is there any way to make jquery dialog work in a synchronous way? ( don't use loop or callback function ) For example: function run() { var result = confirm("yes or no"); alert( result ); \\more codes here } In this example the alert and other codes will be executed after user's choice. If we use jquery dialog var result = $dialog.open() It will continue to execute the alert, which is asynchronous. Currently, my solution is

I am trying to load parsed data in cells, but the problem is that it is happening synchronously and UitableView doesn't show until the data has finished loading. I tried to solve the problem by using performSelectorInBackground, but now data isn't loaded in the cells until I start scrolling. Here is my code: - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. [self performSelectorInBackground:@selector(fethchData) withObject:nil]; } - (void)viewDidUnload { [super viewDidUnload]; // Release any retained subviews of the main view.

Is it possible to synchronously read from stdin in node.js? Because I'm writing a brainfuck to JavaScript compiler in JavaScript (just for fun). Brainfuck supports a read operation which needs to be implemented synchronously. I tried this: const fs = require('fs'); var c = fs.readSync(0,1,null,'utf-8'); console.log('character: '+c+' ('+c.charCodeAt(0)+')'); But this only produces this output: fs:189 var r = binding.read(fd, buffer, offset, length, position); ^ Error: EAGAIN, Resource temporarily unavailable at Object.readSync (fs:189:19) at Object.<anonymous> (/home/.../stdin.js:3:12) at

I'm confused by the term asynchronous when related to programming. It seems to mean the opposite in programming terms as what it is defined as in the dictionary. For example, the word synchronous means: occurring at the same time; coinciding in time; contemporaneous; simultaneous. going on at the same rate and exactly together; recurring together. Yet, Wikipedia says: "In programming, asynchronous events are those occurring independently of the main program flow. Asynchronous actions are actions executed in a non-blocking scheme, allowing the main program flow to continue processing." Wouldn't