I'm building a real-time web application As far as I know, the most popular choices are short-polling and long-polling. What are the advantages and disadvantages might there be for measuring one over the other?...
I need to work out the best way to read data that is being written to a file, using node.js, in real time. Trouble is, Node is a fast moving ship which makes finding the best method for addressing a problem difficult.  What I Want To Do I have a java...
Im using sailsjs as a MVC  for node js, i'm still learning it. I managed to get data from my own database and use it.  But now i need/want to get data from an external rest api. I used this in my controller:  // api/controllers/SomeController.js...
I'm curious as how to monitor a website for it's updates in realtime, preferably in node.js.  Let's take Wikipedia for example. Someone decides to update an article with some relevant information. How would I go about subscribing to the p...
I am currently trying to make a browser plugin using crossrider that will sync bookmarks but as there is no "on new bookmark" event how do I sync all upload new bookmarks to the server and update bookmarks lists on other connected machines in...
Using JS, how can I detect if a special character is entered into an input field as it's typed?  EDIT: Special character being defined as non-alpha/numeric character  EDIT(2):  If it helps anyone else, here's what I came up with:  HTML  <...
I would like a stream graph as in this example: http://mbostock.github.com/d3/ex/stream.html    but I would like real time data entering from the right and have old data leave from the left, such that I always have a window of 200 samples. How would...
When I try to run my node.js application on a localhost server, it does not run and demands a required upgrade. I have tried to run the code but I get the following error:    server code   var WebSocketServer = require('ws').Server,     ws =...
FIDDLE <<<< this has more up to date code than in the question.  I am trying to create a real-time (live-updating) time-series chart in d3, that can also be panned (in X) and zoomed. Ideally the functionality that I want is if the  the ri...
in this very simple example:  var sys = require("sys"),     http = require("http");  http.createServer(function(request, response) {     response.writeHead(200, {"Content-Type": "text/plain"});     response.end("He...

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