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Unlock the Hidden Power of Ruby With RubyGuides

One guide at a time you will learn a variety of Ruby topics & tools to help you become an expert Ruby developer.

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[...]
Everything You Need to Know About Nil
Nil... What is it, really? Well, nil is just a Ruby object. As you can see here: [crayon-5a903a788f1cb162539764/] There is[...]
Ruby Is Hiding Errors From You!
Ruby will intentionally hide some exceptions from you. Sometimes this can be useful. Like when using the Kernel#loop method with[...]
Learn to Implement & Use Prefix Trees in Ruby
A prefix tree (also known as a trie) is a data structure that helps you organize a word list &[...]
Atom Tricks, Plugins & Shortcuts for Ruby Developers
If you are using Atom for Ruby development then you probably know that there are plugins (packages in Atom) that[...]
Build Your Own Link Shortener App with Ruby & Sinatra
If you are looking for a little project to work on & practice your Ruby skills then you are in[...]
Performance Improvements in Ruby 2.5
New Ruby versions keep improving & Ruby 2.5 is no different. Ruby 2.5 is introducing some optimizations: String interpolation will[...]
Turn Rows Into Columns With The Transpose Method
Imagine that you have a perfect grid, let's say a 3x3 square, in the form of a multi-dimensional array. And[...]
Array#zip Method
Let's say that you want to compare two arrays, element by element so you can find the differences. Or maybe[...]

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