Someone asked me : “I would like this site to automatically load a certain page (1-31) depending on what day of the month it is (1-31)”

Since the beginning of the new year, I’m offering to javascripters the echo chamber. What is it? It’s a category where I will post news about what happens in the javascript world. I will try to avoid ajax related news because Ajaxian already does the job really well.
You can subscribe to the RSS feed with […]

If you are javascripter, chances are that you must work with some back-end languages like ASP.NET, ColdFusion, Ruby On Rails or PHP. If you work with a back-end language, chances are that you become frustrated against it sometimes. That’s why I created I hate PHP.
What is it?
I hate PHP helps you to evacuate your […]

There was a buzz around Firebug a couple of months ago. A lot of developers installed it and enjoy every second they use it. There are some others that missed the train and are still using alerts to debug. If you’re from that second category, here’s your chance to get back on tracks.
1. The console

The […]

I received two questions about librairies in the Ask Dan a javascript question serie. Don’t forget to ask me your questions too by sending a mail at dan@javascriptkata.com.
Effects
Camilou asked
Is it too hard to a poor mortal like me to achieve that fancy effects that some libraries like Prototype do offer? I mean, that drag-and-drop stuff […]

Some of you might know that I have worked with Frank Lamontagne of Ruby Fleebie on a project called Ecstatik!. That was the beginning of something.
Now, we are very pleased to announce you our new project : TimmyOnTime.
What is TimmyOnTime?
TimmyOnTime is a IM-based time management tool. To use it, you only need a Jabber client […]

Since the beginning of Ask Dan a javascript question, I received a bunch of questions. Here’s the first one I received. It’s from Andrew Worcester.
There seems (to me anyway) to be an overuse of the “new” syntax in libraries. If I create an Ajax object is there a functional benefit to using: “new Ajax.Request(options)” verses […]

These days, you can’t write a web application without using one of the billionth javascript library. Two of them stood out of the crowd : prototype and jQuery. I will explain why did I choose jQuery.
Prototype
Prototype is comfortably installed in a lot of developers mind because of two reasons : it was […]

It always happens : you have some calculation to do with a date and you forget to calculate those friggin’ leap years. Here’s how to do it cleanly.
The first way
Almost every one use this simple rule : if it’s divisible by 4, it’s a leap year. So the code is

var isLeap = theYear % 4 […]

First of all, since I made the front page of Ajaxian, a lot of new readers joined in. Welcome to all of you. I would also take a moment to explain that Javascript Kata is a technical blog about javascript and though I will talk here and there about ajax, it is not focused on […]