Probably

Probably is an extremely lightweight and simple tool. It only exists for one reason: to avoid checking for nil or exception in a calls chain. So, instead of writing like this:

visitors.most_recent.try(:last).first_name || "NoSuchAnUser"

you write like this

visitors.probably.most_recent.last.first_name.or("NoSuchAnUser")

or in a more natural way:

probably(visitors).most_recent.last.first_name.or("NoSuchAnUser")

Usage

---

The simplest scenario

class Statistics
  include Probably
  attr_reader :visitors

  def latest_visitor
    probably(visitors).most_recent.last.first_name.or("NoSuchAnUser")
  end
end

end

you many want to check probably_spec.rb for more examples, they are quite simple and intutive!