I want to drop some mongodb collections, but that's an asynchronous task. The code will be:  var mongoose = require('mongoose');  mongoose.connect('mongo://localhost/xxx');  var conn = mongoose.connection;  ['aaa','b...
I'm using the Node.JS driver for MongoDB, and I'd like to perform a synchronous query, like such:  function getAThing() {     var db = new mongo.Db("mydatabase", server, {});      db.open(function(err, db)     {         db.authentic...
Are event handlers executed synchronously or asynchronously in JavaScript? Here is JS bin which is showing that event handler is executed synchronously.  Code:  $('#toclick').bind('custom', function() {     for (var i=0; i<100000;...
I want to do a for each loop but have it run synchronously. Each iteration of the loop will do an http.get call and that will return json for it to insert the values into a database. The problem is that the for loop runs asynchronously and that cause...
According to xhr specs async: false is deprecated and modern user agents should start to warn about or even to throw exception.     Synchronous XMLHttpRequest outside of workers is in the process of being removed from the web platform as it has detri...
I am facing a problem with Node.js (v0.12.7). I am writing an application that must be stopped somewhere and wait for a result from a query to database and then what it is doing.  And the problem is not as trivial as using async (series, etc ...). I...
I have an array of promises that I would like to call in parallel, but resolve synchronously.  I made this bit of code to do the required task, however, I needed to create my own object QueryablePromise to wrap the native Promise that I can synchrono...
I have a question about how to perform an asynchronous task in a while-loop until some condition is met. This is more of a theoretical question but I can see how this could be an issue in some scenarios.  I'll try demonstrate the problem at an ex...
If I have the following HTML5 document:  <!DOCTYPE html> <html> <head>     <meta charset="utf-8">     <title>FOOBAR</title> </head> <body> <link rel="stylesheet" href="/largefonts...
I've been hitting my head on JavaScript's Async behavior when scaling functions from my test data to production work.  I have a for loop that I know will range in the hundreds of thousands, will Node pause a for loop and come back to it or ca...

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