kirs

upstream example_backend {
  server unix:/var/www/example.com/shared/unicorn.sock;
}

server {
  listen 80;
  server_name example.com www.example.com;
  access_log off;
  error_log off;
  client_max_body_size 20M;

igrigorik

def tip(msg); puts; puts msg; puts "-"*100; end

#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#

tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"

tip "Ruby 1.9 supports named captures in regular expressions!"

foysavas

def is_ajax_request?
  if respond_to? :content_type
    if request.xhr?
      true
    else
      false
    end
  else
    false
  end

charliepark

  def convert_to_brightness_value(background_hex_color)
    (background_hex_color.scan(/../).map {|color| color.hex}).sum
  end

  def contrasting_text_color(background_hex_color)
    convert_to_brightness_value(background_hex_color) > 382.5 ? '#000' : '#fff'
  end