RUBY

ruby attr_writer example

class Person
  attr_reader :name, :age, :sex, :email
  attr_writer :name, :age, :sex, :email

  def initialize(name)
    @name = name
  end
end

ruby attr_writer example

class Person
  attr_reader :name
  attr_writer :name

  def initialize(name)
    @name = name
  end
end

john = Person.new("John")
john.name = "Jim"
puts john.name # => Jim

What is attr_writer in Ruby?

# What is attr_accessor, attr_reader or attr_writer in Ruby?

# Verbose (hand written reader and writer)
class Person
  def name
    @name
  end
  def name=(str)
    @name = str
  end
end

# or using attr_reader and/or attr_writer
class Person
  attr_reader :name
  attr_writer :name
end

# or using attr_accessor
class Person
  attr_accessor :name
end

# Usage
person = Person.new
person.name = 'Dennis'
person.name # => "Dennis"