Performance optimization is a crucial aspect of building ‘snappy’ client-side applications and something which all developers using jQuery should bear in mind. In this talk, we're going to take a look at some of the best practices, tips and tricks for improving the performance of your jQuery code in 2011 with some quick wins and a few new surprises along the way.

Even in times of a growing market of specialized NoSQL databases, the relevance of traditional RDBMS doesn't decline. Especially when it comes to the calculation of aggregates based on complex data sets that can not be processed as a batch like Map&Reduce. MySQL is already bringing in a handful of aggregate functions that can be useful for a statistical analysis.

A European cookie law that regulates the use of web browser cookies is now in effect in the UK. That cookie law is based on guidelines set by the European Union. In a nutshell, the law states that websites must get a user’s consent before storing cookies on their device (computer, mobile phone, iPad, etc).

In order to make our websites compatible with the EU Cookie Law easily and quickly, here are 2 handy jQuery plugins that will help managing cookies + asking user's permissions for storing them

I wanted to take this technique and port it to another jQuery example. So the quickie for today is Unlimited scroll using jQuery. I've using the Twitter API to make the example, so you'll learn a little bit about JSON too.

L'ordre d'écriture des propriétés en CSS n'a quasiment aucune importance. Du coup, ça relève en général de choix personnel, de l'ordre alphabétique ou d'un hasard total. Pourtant, quand on travaille en équipe, il est vite important d'établir quelques règles afin que tout le monde code de la même façon, sous peine de se retrouver avec un beau patchwork de styles. Voici l'ordre dans lequel je range mes propriétés CSS.

Here is the simple trick to read the text file line by line. For this I am going to use the fopen() and fgets() function.
This is code snippet I am going to take one text file and read it line by line.

There are a lot JavaScript analog clocks out there, but most of them use images or CSS3 tricks to make them move
I am showing you an analog clock made without any image and without any style thanks to Raphaël JavaScript Library.
Raphaël is a JavaScript library that let you your work with vector graphics on the web using the SVG W3C Recommendation and VML as a base for creating graphics which works on Firefox 3.0+, Safari 3.0+, Chrome 5.0+, Opera 9.5+ and Internet Explorer 6.0+.

Here we go with the 3rd step. In this tutorial you will learn how to publish a full featured feed post to your friends’ wall, and to handle “umlauts” characters like “äöü” for the pleasure of our German readers, and for every user who has friends whose names contain special characters.

One of the problems hacktivists ran into when trying to disseminate useful information to people in Syria and Egypt was how to get through to people when DNS and web access are being filtered or outright blocked. Putting up web pages containing phone numbers of ISPs volunteering dialup access was something of a crapshoot because there was no guarantee that people would be able to view them. Someone (I don't remember whom) hit on the idea of contacting sysadmins in the Middle East by leaving messages in the access and error logs of their web servers. This works but pumping an entire list of phone numbers, usernames, and passwords by hand over HTTP requests gets old fast, to say the least.