If Javascript is a single threaded process and AJAX is asynchronous then how does it happen ? So at OS level ain't the JS engine making a Non-Blocking I/O call for Ajax ?...
I have the following simple http server using Node.js:  var http = require('http');  var server = http.createServer(function(req, res) {     var counter = 0;      for(var i = 1; i <= 30; i++) {         http.get({ host: "www.google.com&...
I am relatively new to nodejs. I've been recently pooling all of the collective knowledge i've gathered through the past couple of months into an project. I believe I've ran into my first "blocking" issue in nodejs.  I have a page...
function getHtmlBodyFromFile( filename ){     var outStr = '';     $.get(filename, function(data, status) {         outStr = $('body', $(data)).html();     });     return outStr; } $("div#detail").html( getHtmlBodyFromFile(...
Coming from an entirely different background, the way Node.js works is still a very foreign concept to me. I'm grasping the concept of using callbacks in your functions, but it's hard for me to actually put this into practice when I'm try...
A callBack function:  function queryDemo(param,callBack){     function sleep(milliSeconds) {         var startTime = new Date().getTime();         while (new Date().getTime() < startTime + milliSeconds);     }      sleep(10000);     callBack(param...
Here is an example for querying user from database then if user exists, another query for phone:  module.exports = function (username, req, res, next) {      var query = User.where('username', new RegExp('^' + username + '$',...
For a school project me and a classmate are writing a domain-specific language in javascript (node). The language contains statements that require user input via a Websocket connection.  When a statement requires user input, the interpreter must stop...

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