Converting Ruby array into a hash

Question

I am attempting to write a method named my_transform that takes an array as follows:

items = [\"Aqua\", \"Blue\", \"Green\", \"Red\", \"Yellow\"]
         


        

Answer 1

I would use Array#to_h:

items = ["Aqua", "Blue", "Green", "Red", "Yellow"]
items.each_with_index.to_h
#=> { "Aqua"=>0, "Blue"=>1, "Green"=>2, "Red"=>3, "Yellow"=>4 }

Note that to_h was introduced in Ruby 2.1

Using to_h your my_transform method could look like this:

def my_transform(items)
  items.each_with_index.to_h
end