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Ruby Ruby Collections Ruby Hashes Working with Hash Values

Erik Bonn
Erik Bonn
3,624 Points
Posted by Erik Bonn
Erik Bonn
3,624 Points

Ruby collections. Assigning new values to a hash.

The Question reads: 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 in the hash called "food" with the value of true.

grocery_item.has_value?("bread") since there is a value called bread, I initially wrote grocery_item = { "food" => "true" } but that didn't seem to work. Am I missing something? I tried writing the whole hash again with the food => true added in, but that didn't work either. thanks!

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

3 Answers

Ace Motanya
Ace Motanya
31,756 Points
Ace Motanya
Ace Motanya
31,756 Points 
grocery_item = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }
if grocery_item.has_value?("Bread")
  grocery_item["food"] = true
end
Ace Motanya
Ace Motanya
31,756 Points
Ace Motanya
Ace Motanya
31,756 Points

I created an if statement and I got the green light. I hope that helps.

Erik Bonn
Erik Bonn
3,624 Points
Erik Bonn
Erik Bonn
3,624 Points

I can't seem to get the follow up question as well. it asks, Using the values_at method, create an array called grocery_list with the value of the grocery_item hash at the "item" key.

grocery_list = [{grocery_item}, 3]

Is that even close?

Ace Motanya
Ace Motanya
31,756 Points
Ace Motanya
Ace Motanya
31,756 Points

try this out 

grocery_list =  grocery_item.values_at('item')
Ace Motanya
Ace Motanya
31,756 Points
Ace Motanya
Ace Motanya
31,756 Points

values_at method automatically creates an array so the brackets were not needed.

Erik Bonn
Erik Bonn
3,624 Points
Erik Bonn
Erik Bonn
3,624 Points

thanks man appreciate it!