紅寶石比較對象組上的特定財產

Question

可能重複：
More concise version of max/min without the block

如果我有具有特定屬性的對象的N個（在本例中高度），什麼是找到最大值還是最小值的好方法？

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

爲擴大答案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