chrisb

require 'sinatra'
require 'rubygems'
require 'open-uri'
require 'nokogiri'

get '/' do

 doc = Nokogiri::HTML(open("http://www.google.com"))
 balls = []
 doc.css('a').each do |node|

chrisb

def current_language
  # if a "lang" URL parameter is specified, force it
  return params[:lang] if params[:lang].present?
  
  # if the user is logged in, use their language preference stored in the DB
  return current_user.language if logged_in?

  # if the user has manually selected a language, return that
  return cookies[:language_code] if cookies[:language_code]
  

chrisb

class Rapper
  attr_accessor :name
  def initialize(n)
    self.name = n
  end
  def rap(words)
    puts "Yo yo yo, my name is #{self.name}"
    puts words
  end
end

chrisb

class Hash
  def value_at(*keys)
    begin
      memo = self.dup
      keys.each { |key| memo = memo[key] }
      memo
    rescue
      nil
    end
  end

chrisb

class MyController < ApplicationController
    helper_method :do_something
    
    # ...

    protected
  
        def do_something
            # ...
        end

chrisb

(1..100).each { |i|s='';s+='Fizz'if i%3==0;s+='Buzz'if i%5==0;puts s==''?i:s }