Ruby isn't known for its game development chops despite having a handful of interesting libraries suited to it. Java, on the other hand, has a thriving and popular game development scene flooded with powerful libraries, tutorials and forums. Can we drag some of Java's thunder kicking and screaming over to...
Ruby’s Unary Operators and How to Define Their Functionality
In math, a unary operation is an operation with a single input. In Ruby, a unary operator is an operator which only takes a single 'argument' in the form of a receiver. For example, the - on -5 or...
Screencast: Coding Conway’s Game of Life in Ruby the TDD Way with RSpec
Recently, there have been many screencasts of people coding things in real time. Yesterday, Ryan Bigg released a video of him implementing Conway's Game of Life from scratch by reading through the 'rules' and then using RSpec to take a test driven approach to fleshing out the...
What Ruby’s ||= (Double Pipe / Or Equals) Really Does
In Rubyists Already Use Monadic Patterns, Dave Fayram made a passing reference to using ||= to set a variable's value if its value were 'Nothing' (false or nil in Ruby). The resulting Reddit quickly picked up on his definition (which was fixe...
What Ruby’s ||= (Double Pipe / Or Equals) Really Does
In Rubyists Already Use Monadic Patterns, Dave Fayram made a passing reference to using ||= to set a variable's value if its value were 'Nothing' (false or nil in Ruby). The resulting Reddit quickly picked up on his definition (which was...
A MiniTest::Spec Tutorial: Elegant Spec-Style Testing That Comes With Ruby
Despite RSpec's awesomeness, Test::Unit remains the most popular Ruby testing tool out there outside of Rails apps. I've recently been code walking through a lot of Ruby libraries for my Ruby Reloaded course and the typical arrangement is Test::Unit, sometimes...
A MiniTest::Spec Tutorial: Elegant Spec-Style Testing That Comes With Ruby
Despite RSpec's awesomeness, Test::Unit remains the most popular Ruby testing tool out there outside of Rails apps. I've recently been code walking through a lot of Ruby libraries for my Ruby Reloaded course and the typical arrangement is Test::Unit, sometimes...
rbenv: A Simple, New Ruby Version Management Tool
rbenv is a new lightweight Ruby version management tool built by Sam Stephenson (of 37signals and Prototype.js fame).
The established leader in the Ruby version management scene is RVM but rbenv is an interesting alternative if you want...
Using Ripper to See How Ruby Is Parsing Your Code
In the past couple of months I've seen situations arise where developers aren't entirely sure how Ruby has chosen to interpret their code. Luckily, Ruby 1.9 comes with a built-in library called Ripper that can help solve the problem (there's a 1.8 version...
Careful Cutting To Get Faster RSpec Runs with Rails
A few months ago, Ruby Inside wrote about using Spork with RSpec 2 and Rails 3 in order to get a more sprightly spec run. Unfortunately, using the techniques in the article with our fledgling codebase's test suite left us with somewhat...
How to Install and Use Postgres On OS X For Ruby and Rails Development
I hang out in #nwrug on Freenode, the IRC channel of a Ruby user group here in the UK, and floated the idea of doing a PostgreSQL (a.k.a. Postgres) installation tutorial for Ruby Inside. Coincidentally, it turned out 37signals sysadmin
How to Install and Use Postgres On OS X For Ruby and Rails Development
I hang out in #nwrug on Freenode, the IRC channel of a Ruby user group here in the UK, and floated the idea of doing a PostgreSQL (a.k.a. Postgres) installation tutorial for Ruby Inside. Coincidentally, it turned out 37signals sysadmin
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