When you write something like : my_obj = MyClass.new, the “=” sign does what you think it does. However, when you write : my_obj.yadayada = “123″, it doesn’t (Ruby has a tendency to fool people).

If you’re somewhat familiar with ruby, there are good chances that you won’t learn anything new and exciting in this article. However, if you’re new to the language or just didn’t have time to take a look at ruby hashes yet, maybe you should continue reading.

In every single languages that I know the existence, every arithmetic, bitwise and conditional operators are built-in and global keywords. Well, once again, Ruby had to do things differently. You might be surprised to learn that most ruby operators are not built-in keywords. Fine you’ll tell me… but what are they then?