To_h in Ruby 2.0

With few major changes ruby 2.0 is out today, out the many new features I really liked the to_h

We can convert a class to a Hash, using to_h:

“

# Ruby 2.0:
Student = Struct.new(:name, :age, :year) do
  def info
    #...
  end
end
dude = Student.new('Hemanth', '16', 2)
dude.to_h # => {:name=>"Hemanth", :age=>"16", :year=>2}
nil.to_h # => {}

P.S : This has been implemented for nil, Struct and OpenStruct, but not for Enumerable/Array, so :

module Enumerable # mapping array into a hash def to_h(&block)

inject({}) {|hash, *v| block.call(hash, *v); hash}

end end

After which we can use to_h on Array and other enumarations :

a = [:count, nil].to_h do |hash, value| hash[value] = 1 if value end

=> {:count=>1}

P.S : I tired this by doing : rvm install 2.0.0-p0 && rvm use ruby-2.0.0-p0 rvm++ :)

Do feel free to share you liking towards any other new feature.

Update 0 thanks to Hanmac :

Some fun to ** and to_h.

Person = Struct.new(:name,:age) do alias to_hash to_h end

p [Person.new(“abc”,30)].map {|**p| p }

Would put : [{:name=>“abc”, :age=>30}]