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Ruby Ruby Booleans Build a Simple Todo List Program Part 4: Removing Todo Items

Posted by John Bamberg
John Bamberg
9,774 Points

Why "s"

Sometimes it reads "todo_item" and others "todo_items" Why?

3 Answers

Sage Elliott
Sage Elliott
30,003 Points

Hello, john. They are actually two different objects. The "todo_items" array can contain multiple "todo_item" objects. "eggs" is an example of a todo_item. It can then be added to the todo_items list which may contain another item or can have another item added to it. I hope that helped!

John Bamberg
John Bamberg
9,774 Points
John Bamberg
John Bamberg
9,774 Points

ok so what would you call "todo_items.each"? "do"? "|todo_item|"? On line 4

def remove_item(name)
index = 0
found = false
todo_items.each do |todo_item|
  if todo_item.name == name
    found = true
  end
  if found
    break
  else
    index += 1
  end
end
if found
  todo_items.delete_at(index)
  return true
else
  return false
end

end

Grzegorz Gancarczyk
Grzegorz Gancarczyk
10,064 Points
Grzegorz Gancarczyk
Grzegorz Gancarczyk
10,064 Points

I know it's too late to make an answer but maybe it will help other people. In my opinion in line 4 we are looping through todo_items which is an array (look at: todo_items = []) to look for a todo_item which is every item in the array. So, in other words - we are searching our Groceries list for Milk or Eggs.