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Ruby Ruby Booleans Build a Simple Todo List Program Returning Boolean Values: Part 1

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Challenge Task 1 of 1

In the TodoList class, fill in the empty? method to return a boolean value. The empty? method should return true if there are no elements in the @todo_items array. The method should return false if there is more than one element in the @todo_items array.

todo_list.rb
class TodoList
  attr_reader :name, :todo_items

  def initialize(name)
    @name = name
    @todo_items = []
  end

  def add_item(name)
    todo_items.push(TodoItem.new(name))
  end

  def empty?
  end

end

1 Answer

Hi Andrew,

class TodoList
  attr_reader :name, :todo_items

  def initialize(name)
    @name = name
    @todo_items = []
  end

  def add_item(name)
    todo_items.push(TodoItem.new(name))
  end

  def empty?
    if @todo_lists.empty?
      return true
    else
      return false
    end
  end

end

You use the empty? ruby method to check if the array is empty.

More info on the empty? method you can find here: empty?