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Ruby Ruby Collections Ruby Hashes Working with Hash Values

Posted by Ketan Parikh
Ketan Parikh
2,222 Points

Challenge Task 2of2 Bug or code problem

What is wrong with my solution here for this task? If I remove the solution from task 1 or not, the line for adding an array with a value of item identifier does not work for me

grocery_list = [grocery_item.values_at('item')]

Thanks

hash.rb 
grocery_item = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }
if grocery_item.has_value?('Bread')
  grocery_item.store('food', true)
end
grocery_list = [grocery_item.values_at('item')]

2 Answers

John Steer-Fowler
John Steer-Fowler
Courses Plus Student 11,734 Points

There no need for square brackets

grocery_item = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }

if grocery_item.has_value?('Bread') == true
  grocery_item.store('food', true)
end

grocery_list = grocery_item.values_at('item')

The variable 'grocery_list' already knows it is going to be an Array, because you have used the 'values_at' method that returns an Array.

William Li
William Li
Courses Plus Student 26,868 Points

Hi, John, FYI, grocery_item.has_value?('Bread') returns a boolean value, thus there's no need to compare it against true. You could simply write it as

if grocery_item.has_value?('Bread')
  grocery_item.store('food', true)
end
John Steer-Fowler
John Steer-Fowler
Courses Plus Student 11,734 Points

William Li

Yep, you're right. I was whizzing through and didn't even consider that. Although you would find that my code would still pass.

Was just pointing out that the reason his code wasn't passing was due to the square brackets

Ketan Parikh
Ketan Parikh
2,222 Points
Ketan Parikh
Ketan Parikh
2,222 Points

Thanks for the answers. I see the square brackets,