Ruby - Class attr_accessor

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Introduction

The attr_accessor allows you to do this:

Demo

class Person 
  attr_accessor :name, :age # from   ww w .  j  av  a2s .  co m
end 

x = Person.new 
x.name = "Fred" 
x.age = 10 
puts x.name, x.age

Result

attr_accessor simply writes some code for you.

This code is equivalent to the single attr_accessor :name, :age line in the preceding Person class: 

class Person 
  def name 
    @name 
  end 

  def name=(name) 
    @name = name 
  end 

  def age 
    @age 
  end 

  def age=(age) 
    @age = age 
  end 
end

Here, this code defines the name and age methods that return the current object variables for those attributes.

It defines two "setter" methods that assign the values to the @name and @age object variables.

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