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#
# This class represents a path in the tree. It stores the positions along the x axis
# as a function of the depth and the sum of the leaves along the path
#
class Path
  attr_accessor :path
  attr_accessor :sum
  
  def initialize(parent, xpos, value)
    if parent

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##
# A sitemap has an URL, and holds a collection of pages to be validated
#
module W3Clove
  require 'open-uri'
  require 'nokogiri'

  class Sitemap
    attr_accessor :url

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/*
 *  call-seq:
 *     ary[index]                -> obj     or nil
 *     ary[start, length]        -> new_ary or nil
 *     ary[range]                -> new_ary or nil
 *     ary.slice(index)          -> obj     or nil
 *     ary.slice(start, length)  -> new_ary or nil
 *     ary.slice(range)          -> new_ary or nil
 *
 *  Element Reference---Returns the element at _index_,

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The Back of the Napkin: Solving Problems and Selling Ideas with Pictures By: Dan Roam

Designing Interactions By: Bill Moggridge

Presentation Techniques By: Dick Powell

Envisioning Information

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require 'benchmark'

ary = 1000.times.collect { rand(2000) }

Benchmark.bm(10) do |x|
  x.report { ary.select { |e| ary.count(e) > 1 }.uniq }
  x.report { ary.group_by {|e| e}.select { |k, v| v.size > 1 }.map(&:first) }
  x.report { ary.uniq.select { |i| ary.count(i) > 1 } }
  x.report { ary.uniq.select { |i| ary.delete_at(ary.index(i)) && ary.delete_at(ary.index(i) || ary.length) } }
  x.report { ary.uniq.delete_if { |i| ary.one? { |elm| elm == i } } }

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# In Ruby you can use def anywhere in your code, but its behavior
# depends on the context in which it is used.

# Outside a class definition def creates singleton methods

foo = Object.new

# This will create a singleton method in FOO
def foo.speak
  puts "foo"

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# encoding: utf-8

substitutions = Proc.new do |c|
  case c
  when 'ñ' then 'n'
  when 'í' then 'i'
  else '?'
  end
end

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My job, explained so my mom can understand it

"I am a freelance Ruby and Rails developer". When I talk with my geek friends, everyone understands what I do and they have a reasonable understanding of how I spend my day. But sometimes, less technical people ask me what I do for a living and then I tend to dumb down the answer: "I am a programmer, I usually build websites.". Oh -they say- my nephew also make websites, he even built me a blog in Blogger.

Err... yes, but that hardly has anything to do with what I do for a living.

There are many different kinds of websites, built with different technologies, and depending on the site and the technology used to build it, they are made by one kind of professional or another. The craft of building a website comprises many different disciplines, and professionals usually specialize in just one part of the process. Although I do many different things, my specialization is mainly programming dynamic websites using Ruby and Rails.

In this article I want to

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ruby-1.9.3-p327 cumulative performance patch for rbenv

This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.

Requirements

• rbenv
• ruby-build

You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf using homebrew.

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alberto@Albertos-iMac ~/dev/loadtime $ rails -v
Rails 4.0.2
alberto@Albertos-iMac ~/dev/loadtime $ ruby -v
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin12.5.0]
alberto@Albertos-iMac ~/dev/loadtime $ time rails runner "puts 'hello'"
hello
rails runner "puts 'hello'"  1.16s user 0.16s system 99% cpu 1.330 total