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Awesome Ruby tutorials, guides & advice for smart Ruby developers looking to grow their skills as fast as possible.

How To Use The Singleton Pattern In Ruby (And Why You Should Avoid It)
Have you ever wanted to create a class that can only have one instance? No? Me neither. But that's exactly[...]
How To Dramatically Improve Your Ruby Code With Fundamental OOP Principles
A very important topic in object-oriented design is cohesion & coupling. Cohesion is about the relationship between all the methods[...]
How to Use The Strategy Design Pattern in Ruby
Let's talk about the strategy design pattern! This design pattern helps you change the main algorithm inside a method. You[...]
How To Use The Decorator Pattern in Ruby
The decorator design pattern... What is it, and how can you use this pattern in your Ruby projects? The decorator[...]
How To Create A Memory Leak in Ruby
There are a few articles out there about how to find memory leaks. But how about creating one? I think[...]
Profiling Ruby’s Memory Allocation with TCmalloc
Everytime Ruby needs to request memory from the operating system it has to call the malloc function. This function is[...]
The Definitive Guide To Time Complexity For Ruby Developers
Time complexity is one of the most interesting concepts you can learn from computer science, and you don't need a[...]
How to Write a Ruby C Extension
Writing a C extension allows you to interact with Ruby from C. You may want to this if there is[...]
How Are Symbols And Strings Different?
Have you ever wondered about the differences between symbols & strings? Let's talk about that! Strings are used to work[...]
Functional Programming In Ruby
Maybe you just heard about functional programming & have some questions. Like... What is functional programming exactly? How does it[...]
Ruby String Methods (Ultimate Guide)
A string is just a sequence of characters. Since strings are objects they have a lot of methods you can[...]
The Definitive Guide to Loops in Ruby
In this article you will learn many different ways to write a Ruby loop. A loop lets you repeat some[...]

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