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Ruby Ruby Collections Ruby Hashes Working with Hash Values

Posted by Marcela Jackowski
Marcela Jackowski
2,045 Points

Using the has_value? method, check to see if the grocery_item hash has a value called "Bread". If it does, set a new key

Hi, I don't find help for the above question.

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

3 Answers

Alexander Davison
Alexander Davison
65,469 Points
Alexander Davison
Alexander Davison
65,469 Points

Try this:

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

if grocery_item.has_value?("Bread")
  grocery_item['food'] = true
end

I am just adding the food attribute to the grocery item with a value of true *if* thegrocery_item` has a value of "bread".

Note you don't need the == true in the grocery_item.has_value("Bread") == true statement. This is because the has_value function already returns true or false in the first place and you don't need to compare it to true.

I hope this helps. ~Alex

JUN MENG
JUN MENG
10,249 Points
JUN MENG
JUN MENG
10,249 Points 
grocery_item = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }

grocery_item["food"] = grocery_item.has_value?("Bread")
Marcela Jackowski
Marcela Jackowski
2,045 Points
Marcela Jackowski
Marcela Jackowski
2,045 Points

Thanks for your help.

Alexander Davison
Alexander Davison
65,469 Points

Can you please provide a "Best Answer"? It gives a bonus +12 forum points to the person who receives the best answer (in this case myself) and It also places a green check mark next to this question in the Community. Thank you a lot :)

~Alex