ruby comparing groups of objects on a specific property

Question

Possible Duplicate:
More concise version of max/min without the block

If I had N number of objects with specific attributes (in this example height), what is a good way to find the max or min?

 class Person
   attr_accessor: height
 end

 a = Person.new
 a.height = 10
 b = Person.new
 b.height = 11
 c = Person.new
 c.height = 12

 #what's a nice way to get the tallest person

Answer 1

To expand the answer here:

class Person
  attr_accessor :height

  def initialize(height)
    self.height = height
  end
end

people = [ Person.new(10), Person.new(20), Person.new(30) ]

tallest_person = people.max_by &:height