mvsantos

# Requires ImageMagick


# Converting the source from JPEG to PNG - if necessary
convert my_src_image.jpg my_src_image.png


# Option A
#  - Requires a temporary intermediate file
#  - Drill more than 10 might result in poor results

benbalter

Here's an example of how to embed a Gist on GitHub Pages:

{% gist 5555251 %}

All you need to do is copy and paste the Gist's ID from the URL (here 5555251), and add it to a gist tag surrounded by {% and %}.

Sjors

#!/usr/bin/env ruby
require 'open-uri'
require 'JSON'
require 'digest/sha2'
require 'pry'
require 'bigdecimal'
require 'bitcoin' # Because I need to cheat every now and then

# Usage:
# gem install pry json ffi ruby-bitcoin

geraldb

#
# see http://johnmacfarlane.net/pandoc/epub.html
#
# perl -i -0pe 's/^Insert\s*(.*)\.png\s*\n([^\n]*)$/!\[\2](..\/figures\/\1-tn.png)/mg' */*.markdown
#
# converted to "verbose" ruby

# encoding: UTF-8

Dir['*/*.markdown'].each do |filename|

hubertlepicki

source :rubygems

# We are not loading Active Record, nor Active Resources etc.
# We can do this in any app by simply replacing the rails gem
# by the parts we want to use.
gem "actionpack", "~> 4.0"
gem "railties",   "~> 4.0"
gem "tzinfo"

# Let's use thin

magicznyleszek

Jekyll & Liquid Cheatsheet

A list of the most common functionalities in Jekyll (Liquid). You can use Jekyll with GitHub Pages, just make sure you are using the proper version.

Running

Running a local server for testing purposes:

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

---

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

---

wojtha

require 'benchmark'
require 'set'

def to_boolean_eq(value)
  value == true || value == 'true' || value == 1 || value == '1' || value == 't'
end

def to_boolean_equal(value)
  value === true || value === 'true' || value === 1 || value === '1' || value === 't'
end

AlexLarra

def prepare_files
  unless File.exists?('original') && File.file?('original') && File.readable?('original')
    abort('There is not `original` file in current directory.')
  end
  File.delete('yaml') if File.exists?('yaml')
  [File.open('original'), File.new('yaml', 'w+')]
end

def translate_to_yml(original, yaml)
  original.each_line do |line|

gettalong

A short and very unscientific comparison of the performance of HexaPDF to other PDF utilities when reading, eventually optimizing and then writing a file.

When available, multiple compression modes are compares:

• No indicator - no compression done
• C - Compacting by removing unused and deleted objects
• S - Usage of object and cross-reference streams
• P - Recompression of page content streams

For the HexaPDF tests, the hexapdf binary was used with different options for the optimization command: