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A Ruby gem packages together Ruby code in a way that is easy to share with others. Gems solve mostly[...]

If you would like to use string methods (like gsub) but you're working with an integer... What can you do?[...]

What does the super keyword do in Ruby? It calls a method on the parent class with the same name[...]

Would you like to know what goes on behind the scenes of Rails, Sinatra, and other Ruby web frameworks? Then[...]

N-Queens is an interesting coding challenge where you have to place N queens on a N * N board. It[...]

A set is a class that can hold items in a similar way that an array does... ...but with some[...]

If you'd like to get information from a website, or if you'd like to submit forms, upload files... ...you'll need[...]

Would you like to learn how to write tests for your Ruby applications using RSpec? Then you're in the right[...]

Ruby has a lot of interesting operators, like the spaceship operator (<=>), the modulo assignment operator (%=), and of course[...]

I got an email asking for my opinion about when to use keyword arguments. I thought I'd expand my answer[...]

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[...]

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