Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

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

Tracey Dolby
Tracey Dolby
5,638 Points

In the TodoList class fill in the empty? method to return a boolean value

I've tried index = 0 if todo_items > 1 puts false else puts true end

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?
    index = 0
    if todo_items > 1
      puts false
    else
      puts true
    end
  end

end

1 Answer

Seth Reece
Seth Reece
32,867 Points

Hi Tracey,

You want the empty? method to return true or false, not print to standard output. I got a pass by checking the length of the @todo_items array as so:

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.length >= 1
      return false
    else
      return true
    end
  end

end