synchronous

Situation We have a situation, where we need to onclick-open a new tab in browsers after performing an XHR / Ajax request . We do this by setting the Ajax request to be performed synchronously to keep the context of the trusted click event and this works fine. Problem However, in the latest Chrome version (36), we experience popup warnings when the Ajax call has some lag... A lag of 2 seconds is enough for Chrome to display a popup warning instead of opening the tab like it is supposed to. The code itself is working, I can click that button multiple times and it works all the time until the

I'm using google DFP. If I use synchronous ads from google, my site loads slowly as it needs to load the ad at the same time it loads the website, and if an ad takes long to respond, then the load of the page gets paused. If I use asynchronous ads, this is not a problem since the page will load wether or not ads are loaded. In other words, it makes the site load faster. The thing is, using asynchronous ads creates a div with fixed width and height no matter if there are ads displaying or not. So usually this creates a lot of blank space on my site, since not all ads position are being used.

I am using Promise with Express. router.post('/Registration', function(req, res) { var Promise = require('promise'); var errorsArr = []; function username() { console.log("1"); return new Promise(function(resolve, reject) { User.findOne({ username: req.body.username }, function(err, user) { if(err) { reject(err) } else { console.log("2"); errorsArr.push({ msg: "Username already been taken." }); resolve(errorsArr); } }); }); } var username = username(); console.log(errorsArr); }); When I log errorsArray , it is empty and I don't know why. I am new in node.js. Thanks in advance. Try the

After reading some document of JMS, I totally puzzled by the phrase synchronous and asynchronouns . See this page: http://docs.oracle.com/cd/E19798-01/821-1841/bncdq/index.html Synchronous You use the receive method to consume a message synchronously. You can use this method at any time after you call the start method: connection.start(); Message m = consumer.receive(); connection.start(); Message m = consumer.receive(1000); // time out after a second To consume a message asynchronously, you use a message listener, described in the next section. Asynchronous JMS Message Listeners A message

I have a Javascript object that requires 2 calls out to an external server to build its contents and do anything meaningful. The object is built such that instantiating an instance of it will automatically make these 2 calls. The 2 calls share a common callback function that operates on the returned data and then calls another method. The problem is that the next method should not be called until both methods return. Here is the code as I have implemented it currently: foo.bar.Object = function() { this.currentCallbacks = 0; this.expectedCallbacks = 2; this.function1 = function() { // do stuff

As we know $.ajax() Is a asynchronous method , beacuse next statement starts executing before ajax() method is fully executed and 'ajax()' keep doing his stuff parallelly ,And hide() is a Synchronous method, because it immediately hides the element and next statement will execute when hide() really done his whole task, But I am really confused in the case of hide("slow") . It seems Asynchronous but I read, it sets the timer in browser and everything happen automatically(now hide("slow") is doing nothing parallelly) so in a way , It has also been done its whole task before the next statement

I have this code below, which is supposed to return the result of the call. I need to do this synchronously so that I know everything is good, however it doesn't seem to work. What am I doing wrong? /* jQuery library: * http://code.jquery.com/jquery-1.9.1.min.js */ function getJSON(url){ var result; $.getJSON(url, { async: false, success: function(data) { result = data; alert(data); // **Edit**: also undefined }}); alert(result); // undefined return result; } getJSON does not honor async:false getJSON has no async: false option. You'd have to use ajax for that. According to the documentation,