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Ruby Ruby Collections Ruby Hashes Working with Hash Values

Posted by isaacpollock
isaacpollock
1,023 Points

Help please!

I have been having a lot of trouble with working with arrays and if anyone could clarify what is wrong with this code that would be great

thx isaacpollock

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

1 Answer

Adam Sommer
Adam Sommer
62,470 Points
Adam Sommer
Adam Sommer
62,470 Points

First thing I notice is this line:

  values_at.array.new = grocery_list = grocery_item grocery_item.has_value? ("item")

Having two assignment operators ("=") is usually a bad things. The next thing is that the values_at is a method of the Hash class. So you'd need to call it on a hash like the grocery_item hash:

grocery_item.values_at

The values_at method also takes an argument of key so you can't call array.new at the end of it. If you're trying to return the value of the grocery_item hash with key item you can do something like:

grocery_list = grocery_item.values_at('item')

You'll have a new array in grocery_list.

Hope that helps clarify some things.