ravelll

  describe "pagination" do
    before(:each) do
      sign_in user
      visit users_path
    end

    context 'When user has 30 microposts' do
      let!(:Micropost) { 30.times { FactoryGirl.create(:micropost, user: user) } }

      # micropost にあたるタグが30個ある

ravelll

# interrupt_handler.rb
trap :INT do
  puts '\nInterrupted!'
  exit
end

loop do
  sleep 1
end

ravelll

function peco_select_rake_task_all() {
    local tasks="bundle exec rake -AT"
    task=$(eval $tasks | peco --query "$LBUFFER" )
    task_split=("${(s/ /)task}")
    BUFFER=$task_split[1,2]
    CURSOR=$#BUFFER
    zle -R -c
}
zle -N peco_select_rake_task_all

ravelll

 [mysqlのユーザ作成まわり]

exec { 'create_user_mysql':
  require => Service['mysqld'],
  path    => ['/usr/bin','/bin'],
  command => 'mysql -u root -e "grant select,alter,index,create,insert,update,delete on  *.* to \'gussan\'@\'localhost\' identified by \'gussan\';"',
#  unless  => 'mysql -u root -e "select User, Host from mysql.user where User=\'gussan\' and Host=\'localhost\'" | grep gussan'
}

・トラブル

ravelll

hsh1 = {first:"Satoshi",last:"Tanaka",age:"25"}
hsh2 = {last:"Suzuki",age:"30"}

#show the newest values 
puts hsh1.merge(hsh2)

#show old value when the key duplicated
puts hsh1.merge(hsh2){|key,oldv,newv|oldv}

ravelll

person1 = {first:"coca",last:"cola"}
person2 = {first:"ginger",last:"ale"}
person3 = {first:"dr.",last:"pepper"}

params = {}
params[:father] = person1
params[:mother] = person2
params[:child] = person3

puts params[:father][:first]

ravelll

class String
  def shuffle
    self.split('').shuffle.join
  end
end

puts "asdffdsa".shuffle

ravelll

def string_shuffle(s)
  s.split('').shuffle.join
end

puts string_shuffle("asdffdsa")

ravelll

<?php
$graduates = array("okkun","kitak","takeo","gussan");
shuffle($graduates);
print_r($graduates);
?>