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# Result
#
#                       user     system      total        real
# REXML             8.190000   0.020000   8.210000 (  8.211740)
# LibXML            1.140000   0.000000   1.140000 (  1.141131)
# Nokogiri          1.600000   0.000000   1.600000 (  1.604999)
#


require 'benchmark'

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#
#                       user     system      total        real
# json_gem          1.970000   0.000000   1.970000 (  1.969385)
# yajl              2.090000   0.000000   2.090000 (  2.096399)
# oj                1.240000   0.000000   1.240000 (  1.234021)
# json_pure        23.400000   0.000000  23.400000 ( 23.432088)
#

require 'benchmark'

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# Since ruby 2.1, method definition returns a name of a method as a symbol.
# Example:
def aaa; end  # => :aaa

# How we do it currently
class SomeClass
  def pub_meth
    # ...
  end

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# Finds ruby files that was changed in HEAD against passed branch
# and run rubocop with them. It's supposed to help to detect
# rubocop offenses introduced by YOU.
#
# Examle:
#     rubocop-detect develop
function rubocop-detect(){
    local branch=${1:-master}

    echo -e "\e[1mCOMPARING:\e[0m"

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class User < ActiveRecord::Base
  has_many :emails, :inverse_of => :user
end

class Email < ActiveRecord::Base
  belongs_to :user , :inverse_of => :emails
end

# spec 1
u = User.find(1)

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#!/usr/bin/env ruby

require 'benchmark'

array = (1..10_000).to_a

m = Benchmark.bm(15) do |x|
  x.report("inject") do
    array.inject({}) do |hash, element|
      hash[element] = element

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# When everything work
class TestMailer < ActionMailer::Base
  default :from => "from@example.com", :to => "to@example.com"

  def hello
    mail do |format|
      format.text { render :text => "Hello!" }
      format.html { render :text => "<h1>Hello!</h1>" }
    end
  end

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class Art
  L = 2
  MAX_EPOCH = 20

  def initialize(n, m, p = 0.45)
    @n = n
    @m = m
    @p = p
    @w1 = Array.new(n) { Array.new(m) { 1.0 / (1+n) } }
    @w2 = Array.new(m) { Array.new(n) { 1.0 } }

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# git branch
function parse_git_dirty {
  [[ $(git status 2> /dev/null | tail -n1) != "nothing to commit (working directory clean)" ]] && echo "*"
}
function parse_git_branch {
  git branch --no-color 2> /dev/null | sed -e '/^[^*]/d' -e "s/* \(.*\)/[\1$(parse_git_dirty)]/"
}
export PS1='\u@\h \[\033[1;34m\]\w\[\033[0m\]\[\033[0;33m\]$(parse_git_branch)\[\033[0m\]$ '

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#!/usr/bin/env ruby

require 'cgi'

# Refresh period
PERIOD = 1   # seconds

# Calculate random value from 1 to 10
value = rand(10) + 1