The initialize method is part of the object-creation process in Ruby & it allows you to set the initial values for an object. In other programming languages they call this a “constructor”. For example: Let’s say that you have a Point class, this point needs two coordinates, x & y. How are you going to … Read more
Do you need to know math to become a good programmer? It depends! If you’re just going to be writing CRUD apps all day then you probably don’t need to know much math, if any. But if you want to do more interesting things, like solving coding challenges & be prepared for coding interviews then … Read more
Did you know that you can control your web browser with Ruby? The Watir gem allows you to do this. And it comes with the full power of modern browsers: You can take a screenshot of the visible area of the page You can run javascript on any page, without having to manually open the … Read more
Class inheritance is a fundamental OOP (Object-Oriented Programming) feature that helps you create a more specific & specialized version of any class. Here’s an example: Food -> Fruit -> Orange There’s a relationship between these classes! We can say that an orange is a fruit, but fruits are also food. The parent class (also called … Read more
An environment variable is a key/value pair, it looks like this: We use these variables to share configuration options between all the programs in your computer. That’s why it’s important to learn how they work & how to access them from your Ruby programs using the ENV special variable. Examples of environment variables: You can … Read more