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Following my last article, why do we use nil, I thought it'd be a good idea to ask this question[...]

I was having a chat with a friend about a piece of Ruby code & the topic of return values[...]

Have you ever wanted to create a class that can only have one instance? No? Me neither. But that's exactly[...]

A very important topic in object-oriented design is cohesion & coupling. Cohesion is about the relationship between all the methods[...]

Let's talk about the strategy design pattern! This design pattern helps you change the main algorithm inside a method. You[...]

The decorator design pattern... What is it, and how can you use this pattern in your Ruby projects? The decorator[...]

There are a few articles out there about how to find memory leaks. But how about creating one? I think[...]

Everytime Ruby needs to request memory from the operating system it has to call the malloc function. This function is[...]

Time complexity is one of the most interesting concepts you can learn from computer science, and you don't need a[...]

Writing a C extension allows you to interact with Ruby from C. You may want to this if there is[...]

Have you ever wondered about the differences between symbols & strings? Let's talk about that! Strings are used to work[...]

Maybe you just heard about functional programming & have some questions. Like... What is functional programming exactly? How does it[...]

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