Super Calls

super lets a subclass call the parent version of a method.

super_calls.rb

class Account
  def initialize(owner)
    @owner = owner
  end

  def label
    "account: #{@owner}"
  end
end

class PremiumAccount < Account
  def initialize(owner, tier)
    super(owner)
    @tier = tier
  end

  def label
    "#{super} #{@tier}"
  end
end

tier = 
account = PremiumAccount.new("Ada", tier)

puts account.label

class Account
  def initialize(owner)
    @owner = owner
  end

  def label
    "account: #{@owner}"
  end
end

class PremiumAccount < Account
  def initialize(owner, tier)
    super(owner)
    @tier = tier
  end

  def label
    "#{super} #{@tier}"
  end
end

tier = 
account = PremiumAccount.new("Ada", tier)

puts account.label

class Account
  def initialize(owner)
    @owner = owner
  end

  def label
    "account: #{@owner}"
  end
end

class PremiumAccount < Account
  def initialize(owner, tier)
    super(owner)
    @tier = tier
  end

  def label
    "#{super} #{@tier}"
  end
end

tier = 
account = PremiumAccount.new("Ada", tier)

puts account.label

super Calling `super` reuses parent-class setup or behavior before adding subclass details.