Loop 1

the_least_rubyish_loop.rb

for i in 0..(subscribers.length - 1)
  subscribers[i].notify
end

for suscriber in subscribers
  subscriber.notify
end

suscribers.each do |subscriber|
  subscriber.notify
end

suscribers.each { |subscriber| subscriber.notify }

suscribers.each(&:notify)

blog = Blog.find(url)
if blog
  subscription = subscribe(me, blog)
  if subscription
    notify_subscription(subscription)
  else
    subscription_failed
  end
else
  render_404
end

blog.find(url) or return render_404
subscription = subscribe(me, blog) or return subscription_failed
notify_subscription(subscription)