In the first part, I tried to cover the basics of code blocks. Now, we’re going to talk about : Code blocks and scope A code block is a closure Oh no… not another definition of a closure? Yes, but I promise I will be quick. First, to understand what a closure is we have […]

A while back, I wrote an introduction on code blocks. So if you’re not sure what they are, you should read it first. Something I find interesting with code blocks is that they create the illusion of being executed at the moment they are written. It’s easy to get fooled, because when you look at […]

Understanding the “chain” In my last article, I explained where the various elements of an object were located. Now it’s time to understand what happens at run time when you write the following : obj.my_instance_method Ahh… A method call! Ruby knows what to do in this situation. Remember that inside “obj” resides a reference to […]

So far I’ve talked about how everything was an object in ruby, even classes. I also wrote an article explaining what were the most important steps to follow when trying to understand ruby classes and objects. This wasn’t a bad idea, but it was a rather simplistic view. I think we’re ready to dive into […]

It’s never good when a programmer stare at your code for 2-3 minutes trying to understand some mad one-liners.

It’s not a secret, putting business logic inside a view is a bad idea. Views should only contain HTML and presentation logic.