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

Posted by John Creedon
John Creedon
4,260 Points

todo_list.rb Challenge

The challenge keeps responding that i am returning false for empty? method

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?
    if todo_items.nil?
      return true
    else
      return false
    end
  end

end

1 Answer

Seth Reece
Seth Reece
32,867 Points
Seth Reece
Seth Reece
32,867 Points

Hi Yanni,

nil can be a little tricky in Ruby. An empty string: "".nil? will return false. In this case you would want .empty? instead. Not sure if that has been covered or not yet in this course, and might be a little confusing since you are defining a method named empty?. The long way around would be:

def empty?
  if @todo_items = []
    return true
  else
    return false
  end
end