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Alan Matthews
10,161 PointsHaving trouble creating an array from a hash key/value; Challenge 2/2 Working with Hash Values
Not getting this:
Using the values_at method, create an array called grocery_list with the value of the grocery_item hash at the "item" key.
Alan Matthews
10,161 PointsI tried this;
grocery_list.values_at("item") = Array.new
1 Answer
Stone Preston
42,016 Pointsthe ruby docs on the values_at method state:
values_at(key, ...)
Return an array containing the values associated with the given keys. Also see Hash.select.
so we just need to call the values_at method on grocery items and pass in"item". Since it returns an array, we can assign the return value of this to a variable named grocery_list:
grocery_item = { "item" => "Bread", "quantity" => 1, "brand" => "Treehouse Bread Company" }
grocery_item["food"] = true
if grocery_item.has_value?("Bread")
grocery_list = grocery_item.values_at("item")
Alan Matthews
10,161 PointsThanks, should have realized it was returning an array and I didn't need the Array.new
Stone Preston
42,016 Pointsno problem
Stone Preston
42,016 PointsStone Preston
42,016 Pointscan you post a link to the challenge