You’re probably familiar with creating objects in PHP. But here’s just a quick refresher. First things first, we need a class that defines our object.
Let’s create a new PHP file called
Cat.php and define our class in it:
Note: I went ahead and assumed you know to add
<?php at the top of the
Cat.php file before our definition, because that’s what we PHP developers do.
Now that we have a Cat class, we can create
Cat objects. Below our definition of the
Cat class let’s instainiate a new cat:
But you knew all of that. Alright, time for you to create your first Ruby class. It’s a pretty big moment.
First things first, we need to create a file to store your class in. Create a new Ruby file called
Now we can define our
Cat class inside of
class Cat def meow puts 'meow' end end
Sorry to let you down if you were looking for something more complex. But it’s really that simple.
Now let’s instantiate our first Ruby object. The only real difference here is that the Class itself has a
new method. Also some backstory, our cat’s name is Momma and because this is my book I’ll be giving her a cameo.
momma = Cat.new momma.meow => 'meow'
It’s exactly the same amount of lines as PHP, but instead of instantiating with
new Cat as we’re used to - instead we call the
new method on the
Cat class itself; i.e.
Cat.new. This is a small detail for now, but it’s implications are huge.