brainopia

(function() {
    if (window.setImmediate) return;

    var timeouts = [];
    var messageName = "zero-timeout-message";

    // Like setTimeout, but only takes a function argument.  There's
    // no time argument (always zero) and no arguments (you have to
    // use a closure).
    function setZeroTimeout(fn) {

brainopia

class Chart
  @initAll: ->
    Bar.init()
    Spark.init()

  @init: ->
    for element in $(@selector)
      do (element) =>
        setImmediate =>
          unless $(element).data('initialized')

brainopia

#!/usr/bin/env ruby
require 'epath'

bom = "\xEF\xBB\xBF".force_encoding('binary')
Path.glob('**/*.rb') do |file|
  next if file.binread(3) == bom 
  previous = file.binread
  file.write bom + previous
end

brainopia

#!/bin/sh

rvm_current=`rvm current`

echo "Installing ruby-debug with $rvm_current ..."

curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

gem install linecache19-0.5.13.gem ruby-debug-base19-0.11.26.gem ruby-debug19 -- --with-ruby-include=$rvm_path/src/$rvm_current

brainopia

ActiveRecord::Base.subclasses.
  map {|model| model.reflections.values.select {|association| [:has_many, :has_one].include? association.macro }}.flatten.
  each {|association| association.options[:dependent] = :destroy }

brainopia

# heredocs are quite flexible
  without_initial_indentation = <<-END.gsub(/^ {4}/, '')
    foo
      bar
    foo
      bar
  END


# another example

brainopia

# Get backtrace for each thread
# ruby 1.9
Thread.list.map(&:backtrace)

# ruby enterprise edition
# http://www.rubyenterpriseedition.com/documentation.html#_obtaining_the_backtrace_of_all_threads
require 'thread'
caller_for_all_threads

brainopia

# call methods like constants

module Foo
  def self.bar
    'tadam'
  end
end

Foo::bar # => tadam

brainopia

# power of extend

# can be used to add methods only to top-level object
module Rake
  def task
    :executed
  end
end

extend Rake

brainopia

# "python-like" import

load path, true # => will load new constants and methods under anonymous module
Module.nesting.first # => inside loaded file will return the current namespace

###

module PythonImport
  def import(path)
    load 'importer.rb', true