#ruby

• #ruby-on-rails
• #resources

I wanted to compile an ultimate list of Ruby resources, books, courses, people to follow, etc... This list contains resources I have used…

• #ruby
• #regex

In Ruby we can use the match method which belongs to the String class to both check a string for a regular expression match but also to…

• #ruby

What is actually happening under the covers in Ruby when you ask if a variable is nil? It turns out that it's way simpler than you may think…

• #ruby-on-rails
• #refactoring

Controllers can get out of control. Their job should generally be quite simple. In an MVC framework such as Rails, they should have the job…

• #ruby
• #ruby-on-rails
• #cli

Typically in Rails apps we use rake tasks as a way to interact with our application through the command line. We're all familiar with…

• #ruby
• #metaprogramming
• #ruby-on-rails

In this article we are going to look at method_missing and respond_to_missing? in order to see what they do and how they can be used. We…

• #ruby
• #strings

I'm working with an API which requires a phone number to be in the format 555-555-5555. As much as you want your users to enter it in that…

• #ruby
• #algorithms

What is a Stack? A Stack is an abstract data type in programming which has a variety of uses. The basic premise of a Stack is that you can…

• #ruby
• #algorithms

Today we're going to explore a Ruby implementation of the Weighted Quick Union & Quick Find algorithm. This is an algorithm used to find if…

• #ruby-on-rails
• #databases
• #postgres

Race conditions A race condition or race hazard is the behavior of an electronic, software or other system where the output is dependent on…

• #ruby
• #algorithms
• #recursion

This article is the counterpart to one I wrote on Recursion in Elixir . What is recursion? Recursion in computer science is a method where…

• #ruby
• #elixir
• #algorithms

Intro... learning Elixir This is my first post in the new Elixir category I've set up on my site. I'm new to Elixir and functional…

• #ruby
• #algorithms

The challenge Write a program that outputs all possibilities to put + or - or nothing between the numbers 1, 2, ..., 9 (in this order) such…

• #ruby-on-rails

How to ensure your values are unique It's often the case that you want to ensure that you've got uniqueness in your data. You only want an…

• #ruby

As a way to better understand how Ruby works, I started to dive into how object hierarchies work in the language. We're going to be covering…

• #ruby
• #metaprogramming

My problems today Today I was trying to write a test for a method, and I was expecting certain behaviour that I definitely wasn't getting…

• #ruby-on-rails
• #soap
• #api
• #gross

Can you do this integration? Is what I was asked. Oh no... it's in SOAP? Instantly all the time I spent working with SOAP APIs in PHP…

• #ruby
• #metaprogramming

What is method_missing? method_missing is a method that ruby gives you access inside of your objects a way to handle situations when you…

• #ruby
• #metaprogramming

Creating Methods In this post I'll be discussing another aspect of metaprogramming in Ruby. The ability to create methods dynamically…

• #ruby
• #metaprogramming

What is metaprogramming? You might have heard the term metaprogramming before, but what is it and what does it have to do with Ruby? To…

• #ruby
• #dsl

Overview I've been in Colombia for the last month visiting family, and last week I had the opportunity to hang out with the Medellin.rb…

• #ruby

What is a Struct? A Struct in Ruby is one of the built-in classes which basically acts a little like a normal custom user-created class, but…

• #ruby
• #ruby-on-rails

Situation Maybe you originally wrote some code for a Rails project that you're trying to use in another framework, in an automation script…

• #ruby

The basics of Rack Taken from the Rack website : Rack provides a minimal interface between webservers supporting Ruby and Ruby frameworks…

• #ruby-on-rails

What are tree structures used for? Tree structures are needed any time you want to insert a hierarchy into your data. It's when you want to…

• #performance
• #ruby-on-rails

Hi, Leigh, are you busy? The website is no longer responding... can you investigate? A phone call nobody really likes to receive on a…

• #ruby
• #enumerable

Ruby's Collect method Ruby's collect method is part of the Enumerable mixin; a mixin which provides very useful and powerful methods for…

• #ruby

What is the Tap method? Ruby's tap method allows you to "tap into" a method chain, modify an object and receive that same object as the…

• #ruby
• #enumerable

What is an Enumerable? Enumerable is a Ruby mixin/module which provides a large set of functionality to collection classes. You already know…

• #i18n
• #ruby-on-rails

Why does this site have I18n? It's a good question because my content is only available in English (perhaps I should write some articles in…