Hi, I am Jan. This is my old Ruby blog. I still post about Ruby, but I now do it on idiosyncratic-ruby.com. You should also install Irbtools to improve your IRB.

Idiosyncratic Ruby

May 2015, one-liners · regex · golf · fun · docs · irb · thoughts · tutorial · hints · stdlib · ruby

For the whole of May, I will blog about weird things in Ruby over at Idiosyncratic Ruby – Don’t miss it!

Do you know the official Ruby interpreter "goruby"?

August 2010, ruby · ruby1-9 · fun · golf · regex

##              ##    ##     ##    ##    ##    ####           ###        ##    ##
 ##            ##     ##     ##     ##  ##     ##  ##        ## ##        ##  ##
  ##    ##    ##      #########      ####      ##   ##     #########       ####
   ##  ####  ##       ##     ##       ##       ##  ##      ##     ##        ##
    ####  ####        ##     ##       ##       ####       ##       ##       ##

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The 28 Bytes of Ruby Joy!

June 2010, ruby · thoughts · golf · one-liners

The 28 Bytes of Ruby Joy will notably clean up your code:

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Ruby Brainfuck golf [Update]

September 2009, ruby · ruby1-8 · fun · golf

Some days ago, I discovered a website – which is the most addicting one I know :) – codegolf.com. The goal is, to solve programming problems with as short code as possible.

As I said, it is addicting. You do not write better ruby code by golfing. But you can really improve the knowledge of the language. And it is fun :)

Brainfuck

After doing some of the other challenges I tried the brainfuck challenge.
Brainfuck is a Turing-complete esoteric programming language consisting only of 8 letters, operating on a 30000 cells-array. This is the hello world program:

>+++++++++[<++++++++>-]<.>+++++++[<++++>-]<+.+++++++..+++.[-]>++++++++[<++++>-]
<.>+++++++++++[<++++++++>-]<-.--------.+++.------.--------.[-]>++++++++[<++++>-
]<+.[-]++++++++++.

The goal is to build a interpreter.

…read